External Levator Advancement Research Articles

Reoperation for congenital ptosis: characteristics, success rates, and predicting factors

ObjectiveReoperation for congenital ptosis has added morbidity. The purpose of the current study was to examine the risk for redo ptosis surgery in patients with congenital ptosis, as well as to find predictive factors for reoperation. MethodsThis is a retrospective, cohort study. Analysis of all patients with congenital ptosis who underwent their first ptosis correction surgery between 2012 and 2021 at Sheba Medical Center was performed. ResultsSixty patients (36 male and 24 female) underwent ptosis surgery for congenital ptosis Twenty nine patients (48.33%) underwent frontalis sling (FS), 13 patients (21.67%) underwent levator muscle (LM) surgeries, 9 patients received levator resection (LR), 4 patients received external levator advancement (LAA), and 18 patients (30%) underwent Müller's muscle-conjunctival resection (MMCR). Eighteen patients (30%) underwent a second ptosis surgery. The unadjusted risk of second ptosis surgery was almost four-fold among males with ptosis relative to females with ptosis (HR, 3.90; 95% CI, 3.67-547; p = 0.033) and higher among younger individuals (HR, 4.23; 95% CI, 3.33-5.62; p = 0.042). Older age was protective against the risk of second ptosis surgery (adjusted OR, 0.50; 95% CI, 0.21-0.60; p < 0.001), whereas male sex was associated with an increased likelihood of second ptosis surgery (adjusted OR, 3.33; 95% CI, 1.64-3.98; p < 0.001). ConclusionsAn increased risk of failure of the first surgery was found among male patients, younger patients, and patients with more severe ptosis before the first surgery. Awareness of those factors is beneficial for clinicians and parents.

Influence of the Phenylephrine Test in Outcomes of External Levator Advancement for Involutional Ptosis.

This study aims to evaluate the influence of preoperative phenylephrine testing on the surgical outcome of patients undergoing surgery for involutional ptosis by external levator advancement. This was an observational, monocentric, retrospective study. Fifty-one eyelids from 32 patients, who had surgery between January 2018 and May 2023, were included for analysis. Preoperative clinical examination data were collected. Evaluation was performed at 1 month postoperatively. Surgical success was defined by a postoperative margin reflex distance between 3 and 5 mm inclusive. Symmetry success was defined by a difference in margin reflex distance between the 2 upper eyelids of no more than 1 mm. The surgical success rate was 86%. A positive preoperative phenylephrine test was significantly associated with a better surgical success rate (p = 0.01), including on symmetry (p = 0.01). The secondary outcomes, namely preoperative margin reflex distance, function of the upper eyelid levator muscle, and unilaterality of surgery, were not statistically associated with surgical outcome. The phenylephrine test is a predictive factor of surgical success in patients undergoing external levator advancement. Our study suggests that patients with a negative phenylephrine test should be overcorrected intraoperatively.

An Analysis of Surgical Factors Associated With Clinically Significant Eyelid Edema (CSEE) in Patients Undergoing Blepharoplasty: Lid Crease Techniques Associated with CSEE.

Severe postoperative edema after eyelid surgery can have negative clinical and psychological effects. In this study, the authors investigated whether surgical factors, including surgical techniques and suture type, were associated with clinically significant eyelid edema (CSEE). A chart review was performed on 269 patients who underwent upper eyelid blepharoplasty with or without external levator advancement by 2 surgeons at a single institution between January 2021 and December 2022. Postoperative photos were graded by 2 physicians for eyelid edema using a standardized grading scale ranging from 0 (no edema) to 3 (severe edema). CSEE was defined either as having a grade of 3 at any point postoperatively or any grade that was 1 or greater after 90 days postoperatively. Logistic regression controlling for race was used for analysis; the statistical significance level was defined as p < 0.05. Of 269 patients, 56 developed CSEE. Of those who underwent blepharoplasty with mini crease enhancement (closure with every other bite incorporating levator aponeurosis), 40.5% developed CSEE versus 12.5% of those without ( p < 0.001). Patients with lid crease formation using buried interrupted sutures had greater CSEE than those with externalized interrupted sutures removed at 1 week (43.8% versus 11.5%, p < 0.01). There was no increased risk of CSEE with additional procedures performed versus blepharoplasty alone. Patients who underwent blepharoplasty with mini crease enhancement, where more than 4 sutures are placed from skin to levator, and/or had buried suture lid crease formation had greater rates of CSEE.

Severe Upper Lid Fornix Prolapse After a Ptosis Repair in Floppy Eyelid Syndrome: A Case Report.

Patients with profound floppy eyelid syndrome (FES) may experience challenges achieving eyelid and tarsal stability in the setting of severe ptosis. A 43-year-old woman with sleep apnea presented to clinic with difficulties driving because of droopy eyelids. She also experienced chronic tearing, crusting, and discharge of the eyes. She was diagnosed with severe FES and significant ptosis. She underwent a wedge excision of the upper lid in the medial and lateral aspect of the upper lid. This was followed by a ptosis repair that resulted in complete upper lid fornix obliteration causing the conjunctiva to obstruct the patient's pupils. The patient's symptoms ultimately improved after a definitive fornix reconstruction. Her visual field symptoms were improved with 1-year follow-up. To our knowledge, this is the first report in the literature of a prolapsed fornix resulting in vision obstruction after floppy eyelid repair via a wedge excision followed by a ptosis repair via an external levator advancement. Given these unusual findings for the patient's age, further investigations into treatment management may be necessary to mitigate eyelid reconstruction complications in younger patients with FES.

Müller Muscle-Conjunctival Resection for Treatment of Contralateral Ptosis following Unilateral External Levator Advancement.

One of the main causes of unsatisfactory outcomes after unilateral blepharoptosis surgery is asymmetry of the upper eyelid height, which occurs as a result of a contralateral eyelid droop. Therefore, the authors evaluated the efficacy of Müller muscle-conjunctival resection (MMCR) for the treatment of contralateral ptosis following unilateral external levator advancement (ELA). This study analyzed 26 eyelids of 26 patients with upper eyelid height asymmetry following unilateral ELA who underwent contralateral MMCR retrospectively. The phenylephrine test was performed before ELA and before MMCR. The main outcome measures were symmetry outcomes and clinical outcomes. The mean patient age was 55.81 ± 7.98 years (range, 44 to 70 years); 15 were female (57.7%). The Hering dependency was observed in 13 of the patients (50%) before ELA. An adequate response to phenylephrine was observed before MMCR but not before ELA. Symmetry outcomes after MMCR were perfect (<0.5 mm), good (≥0.5 mm and <1 mm), and fair (≥1 mm) in seven, 17, and two patients, respectively. An optimal upper eyelid height was noted in 47 of the 52 eyelids after the MMCR, whereas three of the 52 eyelids had minimal overcorrection, and two eyelids had undercorrection. The mean change in marginal reflex distance 1 of the contralateral eyelid droop was greater for patients with than without the Hering dependency ( P < 0.0001) after ELA but not after MMCR. Two patients (7.6%) underwent revision ELA surgery. MMCR and use of the phenylephrine test to predict the eyelid position may represent an alternative approach in patients who require management of contralateral ptosis following unilateral ELA. Therapeutic, IV.

Muller's muscle conjunctival resection versus external levator advancement for ptosis repair: systematic review and meta-analysis.

To compare the outcome of Muller's muscle conjunctival resection (MMCR) versus external levator advancement (ELA) in patients undergoing ptosis surgery. A systematic review and meta-analysis were performed as per the Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines, and a search of electronic information was conducted to identify all comparative studies of MMCR versus ELA in ptosis repair. The primary outcome measures were the post-operative marginal reflex distance (MRD1), ptosis under-correction, over-correction, and re-operation rate. Secondary outcome measures included cosmetic appearance, complications, operative time, and learning curve. Fixed-effect modelling was used for the analysis. Seven studies that enrolled 1038 eyelids were identified in the literature. There was no statistically significant difference between the MMCR and ELA groups in post-operative MRD1 (Mean Difference [MD] = 0.13, P = 0.28) and the rate of under-correction odds ratio [OR] = 0.49, P = 0.14). However, ELA had a significantly higher rate of over-correction (OR = 0.17, P = 0.04) and re-operations (OR = 0.26, P = 0.0001) compared to MMCR. For secondary outcomes, MMCR had an improved cosmetic appearance, lower total number of complications and shorter operation time (MD = -10.96, P < 0.00001). Finally, the two techniques had no significant difference in the learning curves. Both MMCR and ELA are effective techniques for the surgical correction of ptosis; however, MMCR surgery is a more predictable and robust technique compared to, ELA with lower rates of over-correction and re-operation.

Demographic and physiological factors associated with clinically significant eyelid edema in patients following upper eyelid surgery

To investigate demographic and physiological variables associated with clinically significant edema after upper eyelid surgery. A retrospective chart review was performed on patients who underwent blepharoplasty or external levator advancement with or without lid crease formation between January 2018 and January 2021 at the University of Southern California. Age, sex, pertinent medical history (medications causing edema and comorbidities), and pertinent surgical procedures were all collected. Postoperative photos were graded by two independent physician graders on a newly developed photographic scale ranging from 0 (no edema) to 3 (severe edema). Clinically significant edema of the eyelids was defined as Grade 3 edema at any postoperative point or ≥ Grade 1 edema after 90 days post operation. Patients without postoperative photos were excluded. Mann-Whitney U test, Fisher's exact test, and χ2 test were used to compare groups with and without significant edema. All analyses were conducted using SAS version 9.4 (SAS Institute Inc.) with α=0.05. Out of 217 patients, East Asian participants had higher odds of developing edema than White participants (odds ratio, 7.92; CI, 3.15-19.93, p < 0.0001) and Hispanic participants (odds ratio, 3.47; CI, 1.51-7.97, p=0.003). Southeast Asian participants also had higher odds of developing CSEE than White participants (odds ratio, 6.19; CI, 1.71-22.43, p=0.006). Fifty-four (24.9%) patients had clinically significant edema. Although BMI, medical comorbidities, medication use, and age did not affect edema, there was a statistically significant relationship between race and incidence of edema (p=0.0001). Those in the CSEE group were also more likely to require reoperation (p=0.0143). There is a statistically significant relationship between Asian race and the incidence of clinically significant eyelid edema. CSEE is associated with a higher incidence of reoperation.

Comparison of Postoperative Infection Rates After Office-based Oculoplastic Procedures Using Sterile and Clean Gloves.

To compare postoperative infection (PI) rates using sterile and clean-boxed gloves in office-based oculoplastic procedures. Prospective, comparative study of patients undergoing oculoplastic procedures by a single surgeon (RS) in an office-based procedure room between October 2018 and September 2020. Participants included were 18 years or older. Excluded were patients on oral antibiotics within 2 weeks before the procedure, had a follow-up period of less than 1 week, had a contaminated wound, had complex reconstructions, or had multiple simultaneous procedures performed. Oculoplastic procedures were performed using either sterile or clean-boxed gloves. The main outcome measure was the frequency of postoperative infection. Three thousand one hundred twenty-nine patients, 1,815 (58%) of whom were women, with a mean age of 60 (18-102) years were included. One thousand five hundred seventy procedures were performed with sterile gloves, while 1,559 were performed with clean-boxed gloves. The patients in the 2 groups were similar in age, gender, and number of high-risk individuals. One patient in the sterile glove group who underwent upper blepharoplasty (0.064%) and one patient (0.064%) in the clean-boxed glove group who had an external levator advancement blepharoptosis repair developed PI. Neither patient had risk factors for infection, and both infections resolved after 1 week of oral amoxicillin-clavulanate 875/125 mg twice daily. In minimally complex in-office oculoplastic procedures, using sterile versus clean-boxed gloves resulted in similar low infection rates in this large cohort. The healthcare benefits may not outweigh the costs of using sterile gloves universally for office-based oculoplastic procedures.

Muller muscle conjunctival resection or external levator advancement; a quantitative comparison of symmetry in unilateral ptosis.

To compare muller muscle conjunctival resection (MMCR) and external levator advancement (ELA) in terms of objective and subjective symmetry in unilateral ptosis. The patients who underwent unilateral MMCR (group1, n = 25) and ELA (group2, n = 25) were reviewed retrospectively. With the written algorithm, margin reflex distance-1 (MRD1), localization of the contour peak, and the percentage of overlapping curvatures (POC) of both upper eyelid curves were calculated. Semi-automated measurements were compared with the manual measurements. The correlation between objective and subjective symmetry was evaluated. Preoperative levator functions were similar in both groups (13.93 ± 3.25 mm and 13.3 ± 2.86 mm, respectively). We found strong correlations between manual and semi-automated measurements (ICC: 0.942, 95% CI = 0.924-0.956, p < 0.001). Preoperative MRD1 (2.15 ± 0.90 vs 1.51 ± 1.01, p = 0.022) and POC was lower in group 2 (66% vs 47.2%, p = 0.01). In the postoperative period, the increase in MRD1 and POC were similar in both groups (p = 0.2 and p = 0.7 respectively), and the contour peak displaced temporally (p < 0.01) providing a symmetric peak in both groups. Subjective symmetry increased as the difference in MRD1 between two eyes decreased (r = -0.456, p = 0.001), and POC increased (r = 0.396, p = 0.004). Besides subjective symmetry, MMCR and ELA are equally effective in ensuring symmetry objectively, as measured with MRD1 and contour peak symmetry and POC in unilateral ptosis. POC may be used as a criterion of symmetry in the evaluation of ptosis.

Factors that influence the postoperative upper eyelid position following surgery for involutional blepharoptosis

External levator advancement is commonly performed for involutional blepharoptosis repair; however, it is difficult to predict the postoperative upper eyelid position (UEP) accurately in blepharoptosis surgery. The purpose of this study was to determine the factors that influence postoperative UEP following surgery for involutional blepharoptosis. We retrospectively studied 40 Japanese women (80 eyelids) who underwent bilateral external levator advancement surgery. We used digital analysis software to measure the UEP and the eyebrow position from straight-gaze view photographs. Statistical analysis was performed to determine the correlation between postoperative UEP and related factors, including age, levator function, amount of levator advancement, anatomical fixed position, and preoperative and intraoperative UEP. We also compared UEP changes in mild, moderate, and severe ptosis groups. Levator function affected both preoperative and postoperative UEP. The amount of levator advancement and the anatomical fixation position on the aponeurosis did not affect the postoperative UEP. However, both preoperative (r=0.49) and intraoperative (r=0.55) UEPs affected the postoperative UEP. In cases of severe ptosis, there was significant re-drooping after surgery, while in cases with mild ptosis, the intraoperative eyelid position was maintained or slightly elevated. In involutional blepharoptosis, the degree of preoperative and intraoperative UEP contributed to the postoperative eyelid position. These data suggested that the levator muscle function is a major contributing factor in the pathogenesis of involutional blepharoptosis.

Cumulative Sum Analysis of the Learning Curve of Ptosis Surgery: External Levator Advancement versus Müller Muscle-conjunctival Resection.

PurposeEven though it is stated that external levator advancement (ELA) has a much longer learning curve than Müller muscle-conjunctival resection (MMCR) in the treatment of aponeurotic ptosis, there is no study in the literature regarding the learning curves of these two surgical techniques. We aimed to objectively determine the length of the learning curves of ELA and MMCR using cumulative sum (CUSUM) analysis.MethodsThe first 30 unilateral ELA and the first 30 unilateral MMCR consecutively performed by a single surgeon were retrospectively reviewed. The CUSUM method was used to analyze the learning curves of ELA and MMCR based on operation times of consecutive surgeries and the clinical outcomes were compared.ResultsCUSUM analyses revealed that the operation time stabilized after around 11 ELA surgeries and 12 MMCR surgeries and R2 value for ELA and MMCR were 0.93 and 0.91, respectively. There was no significant difference in these stratified analyses. Mean operation time was 45.7 minutes in the ELA group and 34.1 minutes in the MMCR group (p = 0.002). Total number of intraoperative complications was 37 in the ELA group and 16 in the MMCR group (p = 0.015). Symmetry success rate was significantly higher (p < 0.0001) and reoperation rate was significantly lower in the MMCR group (p = 0.045).ConclusionsEven though ELA is more challenging than MMCR, comparable learning curves indicate that surgeons in training need to be encouraged to perform both techniques. The challenges and obstacles that the surgeons in training face in these two techniques need to be analyzed in detail.

Efficacy of the Müller Muscle-Conjunctival Resection for the Correction of Unilateral Ptosis following External Levator Operations in Patients with Bilateral Involutional Ptosis.

Patients with aponeurotic blepharoptosis who are treated with external levator advancement may experience complications such as upper eyelid height asymmetry and often require revision surgery. The authors assessed the efficacy of Müller muscle-conjunctival resection in cases with upper eyelid height asymmetry following bilateral external levator advancement. The authors used retrospective analysis of 11 cases between September of 2016 and October of 2018 with eyelid asymmetry following bilateral external levator advancement. Following a positive phenylephrine test, these patients underwent unilateral Müller muscle-conjunctival resection revision surgery to treat the undercorrected eyelid. Preoperative and postoperative marginal reflex distance 1, symmetry outcomes, and clinical outcomes of patients were evaluated after the Müller muscle-conjunctival resection. The average patient age was 54.81 ± 3.95 years (range, 37 to 69 years; median, 56 years); seven patients (63.6 percent) were women. Hering dependency was seen in all patients before the external levator advancement. A total of three patients underwent bilateral external levator advancement simultaneously, and eight patients underwent bilateral external levator advancement sequentially. The phenylephrine test was positive in all patients before the Müller muscle-conjunctival resection. Symmetry outcomes were assessed after the revision surgery as perfect (<0.5 mm), good (≥0.5 to <1 mm), or fair (≥1 mm) in four patients, six patients, and one patient, respectively. An optimal correction was noted in 13 of the 22 eyelids after the revision surgery, whereas eight of the 22 eyelids had minimal undercorrection, and one eyelid had minimal overcorrection. Müller muscle-conjunctival resection revision surgery for treatment of the ptotic eyelid following bilateral external levator advancement is viable and may represent a new alternative among the limited revision techniques. Therapeutic, IV.

Efficacy and safety of blepharoptosis repair after incisional glaucoma surgery.

There is an increased risk for development of blepharoptosis after incisional glaucoma surgery. Data on safety and efficacy of ptosis repair in this group of patients in limited. The goal of this study is to evaluate outcomes and identify potential risk factors for failure of ptosis repair in eyes with history of incisional glaucoma surgery. A retrospective chart review was performed of all patients who underwent incisional glaucoma surgery, specifically trabeculectomy or implantation of glaucoma drainage device (GDD), and subsequent ptosis repair at a single institution from 2009 to 2019. Ptosis surgery outcomes were compared to a control group who underwent ptosis repair after cataract surgery. Seventy-eight eyes of 64 patients were included in the glaucoma surgery group. The rate of severe ptosis (margin reflex distance 1 ⩽ 0 mm) among glaucoma surgery patients was higher compared to control (35 of 78 (44.9%) vs 23 of 82 (28.6%). Ptosis repair was successful in 59 of 78 eyes (75.6%), which was similar to control. Risk for revision surgery was increased more than five-fold in the GDD group compared to control. There were no cases of early or late bleb-related complications. Ptosis repair can be performed safely in patients after incisional glaucoma surgery. Müller muscle conjunctival resection and external levator advancement are equally effective. Patients with history of GDD should be advised about the potentially increased risk of need for revision surgery.

Outcomes After Müller Muscle Conjunctival Resection Versus External Levator Advancement in Severe Involutional Blepharoptosis

To compare outcomes between Müller muscle conjunctival resection (MMCR) ptosis repair and external levator resection (ELR) in patients with severe involutional blepharoptosis. Retrospective, interventional, comparative case series. A retrospective review was performed of patients who underwent ptosis repair between 2012 and 2019. Inclusion criteria were patients who underwent MMCR or ELR ptosis repair, patients with complete documentation of preoperative eyelid measurements, and patients with documentation of postoperative outcome. The main outcome measure was surgical failure, defined as patient-reported or physician-reported dissatisfaction with postoperative eyelid height or postoperative upper margin reflex distance (MRD1) of less than 2mm. Severe ptosis was described as an MRD1 of 0 or worse. Outcome analysis was also performed after stratification for concomitant blepharoplasty performed at the time of ptosis repair. A total of 231 patients (372 eyelids) met the study criteria, of which 142 eyelids had severe ptosis. Comparing outcomes of MMCR vs ELR in patients with severe ptosis, there was a statistically significant higher rate of success after MMCR (P= .0143). The rate of ptosis repair success in eyelids that underwent MMCR was 97.2% and 90.9% in patients with severe ptosis and mild/moderate ptosis, respectively (P= .42). In eyelids that underwent ELR, the rate of ptosis repair success was 77.4% and 85% in eyelids with severe ptosis and mild/moderate ptosis, respectively (P= .15). Concomitant blepharoplasty did not affect ptosis repair outcomes in any group. MMCR ptosis repair is an effective approach in treating patients with severe ptosis, and it may offer superior outcomes to ELR. In patients with good responses to phenylephrine, MMCR may offer an efficient and highly efficacious surgery regardless of presenting MRD1.

Müller Muscle Conjunctiva Resection for Revision of Residual Ptosis After External Levator Advancement Surgery.

To evaluate surgical outcomes of Müller muscle conjunctival resection surgery for reoperation of residual ptosis after external levator advancement in patients with aponeurotic ptosis. A total of 23 eyes of 23 patients who had undergone Müller muscle conjunctival resection for residual ptosis between January 2016 and July 2018 were reviewed retrospectively. Margin reflex distance (MRD), interlid crease, and show distance measurements were performed with a ruler in millimeters during the office examination, and the photographs of patients were taken before the procedure and on the 10th day, at the first, third, and sixth months after the procedure. The successful outcome was described as MRD1 between 3 and 5 mm, interlid MRD1 difference ≤1 mm, interlid crease difference ≤2 mm, interlid show difference ≤2 mm, and the presence of symmetrical lid contour. The mean increases in MRD1 were statistically significant at the first, third, and sixth months postoperatively when compared with preoperative values both before external levator advancement and before Müller muscle conjunctival resection (p = 0.000). There was statistically significant decrease in interlid MRD1 difference, interlid crease difference, and interlid show difference relative to preoperative values. Interlid crease and show difference within the range of successful outcome criteria were achieved in all patients. However, interlid MRD1 difference exceeded 1 mm in only 1 patient who had overcorrection. In patients who have residual ptosis without contour abnormality following external levator advancement, and positive response to phenylephrine testing, Müller muscle conjunctival resection is an effective approach.

Comparison of non-absorbable silk and absorbable polyglactin sutures for external ptosis repair

ABSTRACTPurpose: The authors compare the outcomes and revision rates for external levator aponeurotic advancement for the treatment of involutional ptosis using non-absorbable silk and absorbable polyglactin sutures.Methods: An IRB-approved retrospective chart review identified 121 patients who underwent external levator advancement for involutional ptosis between 2015 and 2016 by the senior author (JBH). All patients underwent ptosis repair using either 5–0 polyglactin 910 on a S–14 spatulated needle or 6–0 silk on a G–1 reverse cutting needle for the aponeurotic advancement. Ptosis etiologies other than involutional ptosis were excluded. Patients with >0.5 mm of upper lid height asymmetry post-operatively underwent surgical adjustment. Demographics, clinical findings and revision rates were collected and analyzed from follow-up visits.Results: 116 patients (190 eyelids) met inclusion criteria. Fewer ptosis repairs performed using silk sutures necessitated adjustment when compared to those using polyglactin (1/73 [1.4%] vs. 14/117 [12.0%], p = 0.010). Silk direct connection sutures had no better stability than polyglactin direct connection sutures (p = 0.16), but silk hang-back sutures were significantly superior to polyglactin hang-back sutures (p = 0.035). Thirteen out of fifteen (86.7%) revisions were advancements to raise the eyelid, while two (13.3%) were recessions.Conclusion: Non-absorbable silk suture may be superior to absorbable polyglactin, necessitating fewer surgical revisions. Silk demonstrated superiority to polyglactin when a hang-back suture was employed. Since the need to place direct or hang-back sutures cannot be made pre-operatively, the authors modified their technique to utilize silk sutures for external aponeurotic ptosis repair.

Types of materials for frontalis sling surgery for congenital ptosis.

Congenital ptosis is a drooping of one or both eyelids at birth, often due to poor development of the levator palpebrae superioris muscle. This can result in amblyopia, astigmatism, and ocular torticollis and therefore may necessitate surgical intervention in early childhood if visual development is compromised. Patients may have varied levels of levator function. Those with moderate to good function may elect to first attempt ptosis repair with external levator advancement or mullerectomy/Fasanella-Servat procedures. For those with poor function, those procedures are less likely to be effective, so they may undergo frontalis sling surgery, in which the tarsal plate is coupled to the frontalis muscle, so that movement of the brow and forehead result in movement of the eyelid. The optimal material to use in this surgery is unknown. To evaluate the comparative effectiveness and safety of various materials used in frontalis sling surgery for congenital ptosis. We searched the Cochrane Central Register of Controlled Trials (CENTRAL) (which contains the Cochrane Eyes and Vision Trials Register) (June 2018), Ovid MEDLINE, Ovid MEDLINE E-pub Ahead of Print, Ovid Medline In-Process and Other Non-Indexed Citations, Ovid MEDLINE Daily (January 1946 to 20 June 2018), Embase (January 1947 to 20 June 2018), PubMed (1948 to 20 June 2018), Latin American and Caribbean Health Sciences Literature Database (LILACS) (1982 to 20 June 2018), ClinicalTrials.gov (www.clinicaltrials.gov) and the World Health Organization (WHO) International Clinical Trials Registry Platform (ICTRP) (www.who.int/ictrp/search/en). We did not use any date or language restrictions in the electronic search for trials. We last searched the electronic databases on 20 June 2018. We included randomized trials that compared one material to another for the treatment of congenital ptosis. Two review authors independently completed eligibility screening, data abstraction, 'Risk of bias' assessment, and grading of the evidence. We identified three randomized trials that had compared four different materials, two materials in each trial. The studies included a total of 160 participants. The surgical procedures compared were polytetrafluoroethylene (Gore-Tex), Ethibond suture, Mersilene mesh, and autogenous fascia lata.We judged all studies to be at unclear risk of bias due to incomplete reporting of methods and other methodological deficiencies.Because the three included studies compared different types of implants, we were unable to combine data in a meta-analysis. The limited data preclude any conclusion regarding the optimal implant for frontalis sling surgery.In terms of the primary outcome of functional success, this was defined as widening of the opening between eyelids, assessed either by grade or by millimeter measurement. Bajaj 2004 showed that 93% of the Gore-Tex group and 83% of the Ethibond group had a good or satisfactory outcome (as defined by investigators). Elsamkary 2016 reported that 78.1% of the autogenous fascia group and 61.8% of the Gore-Tex group had a very good or good outcome. Salour 2008 did not include this type of grading system; they showed that the lid fissure increased 4.0 mm ± 1.46 mm in the Mersilene group and 3.13 mm ± 1.72 mm in the fascia lata group.In terms of adverse events, Bajaj 2004, which included 15 patients per group, showed no recurrence in the Gore-Tex group and 1 in the Ethibond group; no need for removal in the Gore-Tex group and 1 in the Ethibond group; and no infections in the Gore-Tex group and 1 in the Ethibond group. Elsamkary 2016, which included 55 patients per group, had 3 recurrences in the fascia group and 6 in the Gore-Tex group; no need for removal in either group; and 1 infection in the fascia group and 2 in the Gore-Tex group. Salour 2008, which included 10 patients per group, had no recurrence, removals, or infections in either the Mersilene or the fascia group. The three trials included in this review evaluated four materials for frontalis sling surgery. Assessment of these three studies does not allow us to identify the optimal material. Future randomized trials should be rigorously designed so as to identify the best treatment for this condition.

Significance of Early Postoperative Eyelid Position on Late Postoperative Result in Mueller's Muscle Conjunctival Resection and External Levator Advancement Surgery.

The purpose of this study was to determine whether advancement of the levator aponeurosis in external levator resection surgery or Mueller's muscle and conjunctiva in Mueller's muscle conjunctival resection (MMCR) surgery has a differential effect on variation in eyelid position during the postoperative period. In this retrospective observational cohort study, 2 groups of patients were defined. The first underwent MMCR surgery without tarsectomy by surgeon 1. The second underwent external levator resection without dissection posterior to the levator aponeurosis by surgeon 2. Marginal reflex distance (MRD1) was calculated based on digital photographs at baseline, 1 week postoperatively and at 3-month follow up. The primary outcome measure was change in MRD1 over time. The secondary outcome was defined as the proportion of patients with minimal early postoperative change (change of MRD1 less than 0.5 mm at 1 week postoperatively). Repeated measures analysis of variance, t test, and chi-square analyses were performed. Of the 114 eyes in the sample, there were 68 in the MMCR group and 46 in the external levator resection group. A significant interaction between group and time was noted (p < 0.05), indicating change in MRD1 over time was different between the groups. Bonferroni corrected multiple comparisons yielded significant differences between each time point for MMCR surgery (p < 0.01). No difference in MRD1 was noted for the external levator resection group from the early to late postoperative visit. Comparing each time point across groups revealed significantly lower MRD1 for the MMCR group at the early postoperative visit (p < 0.01). Preoperative and late postoperative MRD1 did not significantly differ between the groups. Regarding the secondary outcome, patients undergoing MMCR surgery were 3.7× as likely to demonstrate <0.5 mm of change in MRD1 at week 1 (p < 0.05). When considering the 39.7% (n = 27) MMCR patients in this category, 59.3% (n = 16) went on to show an MRD1 increase >1 mm from the early postoperative to the late postoperative time points. Both external levator resection and MMCR can effectively elevate the eyelid in cases of primary involutional ptosis, and have similar late postoperative results. The authors found that MMCR cases undergo greater change between the early and late postoperative period, suggesting the process of eyelid elevation after MMCR may be dynamic, involving postoperative physiologic modification.

Traumatic Ptosis: Evaluation of Etiology, Management and Prognosis.

Introduction:To investigate whether a systematic approach to subgrouping traumatic ptosis according to etiology can allow for better tailoring of prognosis and treatment.Methods:Retrospective chart review of patients with trauma-related blepharoptosis managed by Oculoplastic surgery specialists at an academic medical center from January 1995 to November 2015. Injury mechanism, eyelid position and function, interventions, and outcomes were reviewed.Results:Of 648 patients treated for blepharoptosis, 55 (8.5%) were traumatic. Careful review revealed 4 subcategories of traumatic ptosis cases: aponeurotic (n = 16), myogenic (n = 18), neurogenic (n = 7), and mechanical (n = 14). Margin reflex distance (MRD1) at presentation was significantly worse for the myogenic subtype (-0.59 mm, SD ±2.09, P = 0.046). The aponeurotic subtype had the best average levator function at presentation (14.29 mm, SD ±2.05), while myogenic had the worst (8.41 mm, SD ±4.94) (P = 0.004). Thirty-five (63.6%) patients were managed surgically. Final MRD1 was significantly different for each subtype (P = 0.163), with aponeurotic 2.63 mm (SD ±1.01), myogenic 1.29 mm (SD ±2.24), neurogenic 1.79 mm (SD ±2.48), and mechanical 2.31 mm (SD ±1.18). There was a significant increase in MRD1 from presentation to final follow up across all groups (P < 0.05).Conclusion:Traumatic ptosis is heterogenous. Systematically evaluating traumatic ptosis cases by trauma mechanism can guide decisions about prognosis and management. Two-thirds of cases were treated surgically, with most patients responding well to conjunctiva-Müller resection or external levator advancement. While all subgroups demonstrated improvement in MRD1 at final follow up, aponeurotic cases had the best prognosis, while myogenic fared the worst and required the longest for maximal recovery.

Types of materials for frontalis sling surgery for congenital ptosis

Background Congenital ptosis is a drooping of one or both eyelids at birth, often due to poor development of the levator palpebrae superioris muscle. This can result in amblyopia, astigmatism, and ocular torticollis and therefore may necessitate surgical intervention in early childhood if visual development is compromised. Patients may have varied levels of levator function. Those with moderate to good function may elect to first attempt ptosis repair with external levator advancement or mullerectomy/Fasanella-Servat procedures. For those with poor function, those procedures are less likely to be effective, so they may undergo frontalis sling surgery, in which the tarsal plate is coupled to the frontalis muscle, so that movement of the brow and forehead result in movement of the eyelid. The optimal material to use in this surgery is unknown. Objectives To evaluate the comparative effectiveness and safety of various materials used in frontalis sling surgery for congenital ptosis. Search methods We searched the Cochrane Central Register of Controlled Trials (CENTRAL) (which contains the Cochrane Eyes and Vision Trials Register) (June 2018), Ovid MEDLINE, Ovid MEDLINE E-pub Ahead of Print, Ovid Medline In-Process and Other Non-Indexed Citations, Ovid MEDLINE Daily (January 1946 to 20 June 2018), Embase (January 1947 to 20 June 2018), PubMed (1948 to 20 June 2018), Latin American and Caribbean Health Sciences Literature Database (LILACS) (1982 to 20 June 2018), ClinicalTrials.gov (www.clinicaltrials.gov) and the World Health Organization (WHO) International Clinical Trials Registry Platform (ICTRP) (www.who.int/ictrp/search/en). We did not use any date or language restrictions in the electronic search for trials. We last searched the electronic databases on 20 June 2018. Selection criteria We included randomized trials that compared one material to another for the treatment of congenital ptosis. Data collection and analysis Two review authors independently completed eligibility screening, data abstraction, 'Risk of bias' assessment, and grading of the evidence. Main results We identified three randomized trials that had compared four different materials, two materials in each trial. The studies included a total of 160 participants. The surgical procedures compared were polytetrafluoroethylene (Gore-Tex), Ethibond suture, Mersilene mesh, and autogenous fascia lata.We judged all studies to be at unclear risk of bias due to incomplete reporting of methods and other methodological deficiencies.Because the three included studies compared different types of implants, we were unable to combine data in a meta-analysis. The limited data preclude any conclusion regarding the optimal implant for frontalis sling surgery.In terms of the primary outcome of functional success, this was defined as widening of the opening between eyelids, assessed either by grade or by millimeter measurement. Bajaj 2004 showed that 93% of the Gore-Tex group and 83% of the Ethibond group had a good or satisfactory outcome (as defined by investigators). Elsamkary 2016 reported that 78.1% of the autogenous fascia group and 61.8% of the Gore-Tex group had a very good or good outcome. Salour 2008 did not include this type of grading system; they showed that the lid fissure increased 4.0 mm ± 1.46 mm in the Mersilene group and 3.13 mm ± 1.72 mm in the fascia lata group.In terms of adverse events, Bajaj 2004, which included 15 patients per group, showed no recurrence in the Gore-Tex group and 1 in the Ethibond group; no need for removal in the Gore-Tex group and 1 in the Ethibond group; and no infections in the Gore-Tex group and 1 in the Ethibond group. Elsamkary 2016, which included 55 patients per group, had 3 recurrences in the fascia group and 6 in the Gore-Tex group; no need for removal in either group; and 1 infection in the fascia group and 2 in the Gore-Tex group. Salour 2008, which included 10 patients per group, had no recurrence, removals, or infections in either the Mersilene or the fascia group. Authors' conclusions The three trials included in this review evaluated four materials for frontalis sling surgery. Assessment of these three studies does not allow us to identify the optimal material. Future randomized trials should be rigorously designed so as to identify the best treatment for this condition.