Use Of Contact Lenses Research Articles

Lower eyelid position before and after blepharoptosis repair

ABSTRACT Purpose This study aimed to examine the changes in lower eyelid position after blepharoptosis surgery and the factors that influence the outcome. Methods We conducted a retrospective study of 155 eyes of 89 patients who underwent blepharoptosis surgery between June 2019 and October 2022. The margin reflex distance (MRD)-1 and MRD-2 were examined preoperatively and 3 months postoperatively in two groups: one with lower scleral show (LSS) (n = 37) and one without LSS (n = 118). The clinical characteristics of the two groups were compared. Results Both the LSS and non-LSS groups showed significant postoperative improvement in MRD-1 scores (p < .01, p < .01, respectively). MRD-2 was significantly reduced in the LSS group, while it remained unchanged in the non-LSS group (p < .01, p = .27, respectively). There were no significant differences between the two groups in age, sex, history of hard contact lens use, preoperative levator function, use of topical steroids, history of endophthalmic surgery, or history of filtration surgery; however, the LSS group significantly used prostaglandin analogs (PGAs) (p = .03). Postoperatively, MRD-2 decreased in 13 eyes (35.1%) and was maintained in 24 eyes (64.9%) in the LSS group and was maintained in all eyes in the non-LSS group. In the LSS group, we also examined the association between postoperative MRD-2 reduction and the use of PGAs and found that more patients with MRD-2 reduction used PGAs (p = .02). Conclusion Lower scleral show in PGAs-associated blepharoptosis is expected to improve after blepharoptosis surgery.

Computer vision syndrome among university students during the corona virus pandemic

Computer vision syndrome (CVS) is a group of eye and visual problems related to computer use and it is associated with near work. The aim is to determine CVS prevalence, major complaints and main preventive practices among the University of Jordan students after the COVID-19 pandemic era. We conducted a cross-sectional descriptive study using an online pre-tested structured questionnaire. Each participant completed the questionnaire before and after the COVID-19 pandemic and the results were compared. A total of 634 students were included in the study. A high prevalence of CVS was observed after the COVID 19 era. The most significant risk factors for the presence of CVS before and after the pandemic were daily hours use of E-device for studying (p&amp;lt;0.001) and the use of glasses or contact lens (p&amp;lt;0.05). Brightness adjustment, keeping sufficient distance away from the device, taking breaks, increasing the screen font size and using eye drops were the most significant preventive measures taken by students before and after the pandemic (p&amp;lt;0.05). It is a necessity to raise awareness among students regarding computer related health problems and preventive measures need to be adopted to address the risk factors.

Prevention of Ocular Toxicity Using Protective Contact Lenses in Multiple Myeloma Patients Receiving Belantamab Mafodotin, Pomalidomide and Dexamethasone: A Sub-Study of the Cmrg-007 Trial

Background: Belantamab mafodotin (belamaf) is a monomethyl auristatin-F containing antibody drug conjugate that targets BMCA on myeloma cells. Single agent belamaf has shown clinical meaningful activity in relapsed/refractory multiple myeloma (RRMM) but ocular adverse events (AEs) affect 53-72% of trials'participants. In DREAMM-2, prophylactic corticosteroid eye drops did not effectively reduce the risk of keratopathy. It is therefore imperative that strategies to mitigate corneal AEs be explored. This 2-part study is designed to evaluate belamaf and pomalidomide/dexamethasone (Pd) in RRMM. Here we report the efficacy and ocular AEs of patients (pts) receiving 2.5 mg/kg (maximum tolerated dose) or 1.92 mg/kg IV belamaf and administrated on various schedules aimed to define the optimal balance of efficacy and tolerability. We also present results of an ocular sub-study exploring the use of bandage contact lens (BCLs) to reduce the risk and severity of belamaf-associated ocular AEs. Methods: Eligibility: &amp;gt; 1 prior lines of therapy (LoT), lenalidomide, proteasome inhibitors exposed, and refractory to the last LoT. Pd was administered per standard of care and belamaf (1.92 or 2.5 mg/kg) Q4W or 2.5 mg/kg Q8W, Q12W or SPLIT equally on days 1 and 8, Q4W. Pts enrolled on the ocular sub-study received the recommended part two dose (RP2D): 2.5 mg /kg Q8W. A BCL (Bausch and Lomb Pure Vision) was placed in the right (R) eye for the 1st 2 doses of belamaf with the left (L) eye serving as control. Subsequently, BCLs were placed in both eyes. Pts wore BCLs for up to 28 days after each belamaf dose. Evaluation by an eyecare specialist for a comprehensive eye exam and BCL placement occurred every 15-28 days during BCLs use and prior to each belamaf dose. Corneal findings were graded (Gr) by the keratopathy and visual acuity (KVA) scale and findings of local infection were reported. Keratitis prophylaxis during BCLs use included gatifloxacin 0.3% or tobramycin 1.3% eye drops. Results: This analysis comprises 92 pts including 14 on the ocular sub-study. Baseline best corrected visual acuity (BCVA) and ocular comorbidities were similar across all cohorts: with median 20/20 BCVA 46.7% R and 50% L eye. Abnormal fundoscopy was 21.7% in R and 16.3% in L eye. There was a trend to lower incidence and less severity of ocular AEs for the 1.92 mg/kg dose (Table 1). Gr 3-4 keratopathy, decrease in BCVA and subjective Gr &amp;gt;2 blurred vision by CTCAE were 33.3% (4/12), 41.7% (5/12) and 25% (3/12) for the 1.92 mg/kg and 75% (9/12), 75% (9/12) and 33.3% (4/12) for 2.5 mg/kg Q4W cohorts. Preliminary data indicated superior clinical efficacy (ORR, &amp;gt;VGPR rate and mPFS) for the 2.5 mg/kg dose, 100% (12/12), 91.7% (11/12) and 25.1 months (11.8-NYR) versus 66.7% (8/12), 63.6% (7/12) and 16.9 months (5.3-19.7) for the 1.92 mg/kg dose (Table 2). To preserve efficacy but reduce ocular AEs additional cohorts exploring 2.5 mg/kg dosed every 8 and 12 weeks were included. Extended dosing schedules showed lower rates of Gr 3-4 keratopathy, decrease in BCVA, and Gr ≥2 blurred vision: 58.3% (7/12), 91.7% (11/12) and 16.7% (2/12) of pts treated Q8W; and 58.3%, 58.3% and 16.7% (2/12) of pts treated Q12W versus the Q4W schedule. Importantly, the efficacy was preserved with ORRs of 91.7% (11/12) and 100% (11/11), &amp;gt;VGPR rates of 83.3% (10/12) and 63.6% (7/11) and mPFS of 18.3 months (95% CI: 10.1-NYR) and 22.5 (95% CI: 8.9-NYR) for Q8W and Q12W groups, respectively. In the ocular sub-study, assessment of R and L eye during the first 2 belamaf doses showed a significant delay in onset of BCVA decrease in the R eye (p&amp;lt;0.0001) compared to the L. Comparing pts treated at the RP2D, moderate to severe (Gr ≥2) keratopathy and decrease BCVA were significantly lower (p=0.0004 and 0.010), in the BCL cohort versus no-BCL group. Further there was a trend towards less symptomatic blurred vision (p=0.256). BCL pts were able to complete 90% of the pre-planned belamaf cycles compared to 70% in the RP2D no-BCL group (p=0.029). No cases of infectious keratitis were reported in the BCL cohort. Conclusions: Our data suggest that extended dosing intervals may be a significant step forward in mitigating corneal AEs of belamaf. This preliminary report on the efficacy of BCLs in 14 pts demonstrates a decrease in moderate to severe corneal AEs and reduction in dose holds for corneal AEs, noting however a short follow up at this time. The data support the further evaluation of BCLs in preventing belamaf associated ocular toxicities.

Eyeglasses and risk of COVID-19 transmission—analysis of the Virus Watch Community Cohort study

ObjectivesThe importance of SARS-CoV-2 transmission via the eyes is unknown, with previous studies mainly focusing on protective eyewear in healthcare settings. This study aimed to test the hypothesis that wearing eyeglasses is associated with a lower risk of COVID-19. MethodsParticipants from the Virus Watch prospective community cohort study responded to a questionnaire on the use of eyeglasses and contact lenses. Infection was confirmed through data linkage, self-reported positive results, and, for a subgroup, monthly capillary antibody testing. Multivariable logistic regression models, controlling for age, sex, income, and occupation, were used to identify the odds of infection depending on frequency and purpose of eyeglasses or contact lenses use. ResultsA total of 19,166 participants responded to the questionnaire, with 13,681 (71.3%, CI 70.7-72.0) reporting they wore eyeglasses. Multivariable logistic regression model showed a 15% lower odds of infection for those who reported using eyeglasses always for general use (odds ratio [OR] 0.85, 95% 0.77-0.95, P = 0.002) compared to those who never wore eyeglasses. The protective effect was reduced for those who said wearing eyeglasses interfered with mask-wearing and was absent for contact lens wearers. ConclusionsPeople who wear eyeglasses have a moderate reduction in risk of COVID-19 infection, highlighting that eye protection may make a valuable contribution to the reduction of transmission in community and healthcare settings.

Observation and assessment of the immediate use of a silicon hydrogel contact lens after transepithelial corneal cross linking: a prospective study

BackgroundTransepithelial corneal crosslinking (CXL) is a novel surgical approach for the treatment of keratoconus, which is a bilateral asymmetrical ophthalmological disease accompanied by progressive corneal ectasia. Silicon hydrogel (SiH) contact lenses have been extensively used in clinical ophthalmologic medicine, as a postoperative ophthalmological intervention. However, the ideal lens application duration after transepithelial CXL remains uncertain. Here, we aimed to investigate the effects and comfort of immediate corneal contact lens use after transepithelial CXL for keratoconus.MethodsIn this prospective study, 60 patients with keratoconus who underwent transepithelial CXL treatment were enrolled from September 2021 to January 2023 with a male:female ratio of 39:21, and an average age of 25.42 ± 5.47 years. The patients were divided randomly into two groups: group A contained 30 patients wearing silicone hydrogel contact lenses for 7 days postoperatively, and group B contained 30 patients wearing the same contact lenses for 3 days.Ten subjective ophthalmologic symptoms were surveyed by the patients, including pain, photophobia, foreign body sensation, tearing, burning, blurred vision, dry eyes, difficulty opening the eyes, astringency, and stinging. Ophthalmologic signs, including corneal edema and conjunctival congestion, were recorded by a single clinician on postoperative days 1, 3, and 7.ResultsEach surgical procedure was readily performed without complications, and both groups postoperative day 7 (P = 0.04), where group B scored (0.01 ± 0.41) lesser than group A (0.12 ± 0.29), whilst corneal edema in both groups recorded significantly different on postoperative days 5 and 7 (group A demonstrated the result of 0.17 ± 0.14 and 0.08 ± 0.11 for the respective days, whereas group B indicated 0.10 ± 0.13 and 0.03 ± 0.07 at the corresponding times).ConclusionsImmediate use of silicone hydrogel corneal lenses after transepithelial CXL effectively alleviates postoperative ocular distress, particularly with a three-day use period as the ideal duration.

Functional Changes of the Ocular Surface Sensory Nerves Due to Contact Lens Use in Young Symptomatic and Asymptomatic Users

Functional Changes of the Ocular Surface Sensory Nerves Due to Contact Lens Use in Young Symptomatic and Asymptomatic Users

Risk Factors for Meibomian Gland Disease Assessed by Meibography.

To elucidate risk factors for meibomian gland disease (MGD) and understand associated changes in meibography and in relation to ocular surface disease. As part of the standard workup for ocular surface disease at a tertiary academic center, 203 patients received an ocular history and lifestyle questionnaire. The questionnaire included detailed inquiries about ocular health and lifestyle, including makeup use, cosmetic eyelid procedures, screen time, and contact lens habits. Subjects also took the standardized patient evaluation of eye dryness (SPEED) II questionnaire. Meibomian gland (MG) dropout and structural changes were evaluated on meibography and scored by three independent graders using meiboscores. Statistical analysis was conducted to identify significant risk factors associated with MG loss. This retrospective, cross-sectional studyincluded 189 patients (378 eyes) with high-quality images for grading, and the average age was 67 years (77% female). Patients older than 45 years had significantly more dropout than younger patients (p < 0.01). Self-reported eye makeup use did not significantly impact MG loss. Patients with a history of blepharoplasty trended toward higher meiboscores, but the difference was not statistically significant. Self-reported screen time did not affect meiboscores. Contact lens use over 20 years was associated with significant MG loss (p < 0.05). SPEED II scores had no relationship to meiboscores (p = 0.75). Older age is a significant risk factor for MG loss. Any contact lens use over 20 years also impacted MG dropout. Highlighting the incongruence of symptoms to signs, SPEED II scores showed no relationship to the structural integrity of MGs.

Dry eye disease among patients infected with the SARS-CoV-2 Omicron variant: a cross-sectional study.

To investigate the incidence of dry eye disease (DED) and relevant risk factors among patients infected with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron variant. This cross-sectional, observational analysis included 993 patients with corona virus disease 2019 (COVID-19) treated at the National Exhibition and Convention Center (Shanghai) Fangcang Shelter Hospital, from April 10 to May 26, 2022. Totally 944 uninfected control participants were recruited. All participants completed ocular surface disease index (OSDI) questionnaires, and DED symptoms were determined using OSDI scores. The demographic characteristics, length of hospital stay and in nasopharyngeal swabs were performed using questionnaires. SARS-CoV-2 Omicron variant infection was confirmed by nucleic acid-based detection in nasopharyngeal swabs using a 2019-nCoV nucleic acid detection kit. The risk factors for DED symptoms among patients with COVID-19 and control participants were determined by logistic regression analysis. Patients with COVID-19 showed a higher incidence of DED than controls (64.9% vs 55.1%, P<0.001). SARS-CoV-2 infection [odds ratios (ORs) (95%CI): 1.271 (1.038, 1.556)], use of contact lenses [ORs (95%CI): 9.350 (3.676, 23.783)], history of corneal refractive surgery [ORs (95%CI): 2.047 (1.494, 2.804)], poor sleep quality [ORs (95%CI): 2.657 (2.029, 3.480)], and video display terminal (VDT) use for more than 8h per day [ORs (95%CI): 6.348 (4.720, 8.538)] were found to be risk factors for DED symptoms in patients with COVID-19 as well as controls. For patients with COVID-19, the length of hospital stay [ORs (95%CI): 1.196 (1.134, 1.262)], use of contact lenses [ORs (95%CI): 20.423 (2.680, 155.632)], history of corneal refractive surgery [ORs (95%CI): 2.166 (1.321, 3.553)], poor sleep quality [ORs (95%CI): 3.650 (2.381, 5.597)], and VDT use for more than 8h per day [ORs (95%CI): 7.740 (4.918, 12.180)] were significant risk factors for DED symptoms. Patients with COVID-19 are more prone to develop symptomatic DED. SARS-CoV-2 infection and length of hospital stay are important risk factors for DED symptoms.

Infectious Complications of Contact Lenses: A Review of the Literature

The use of contact lenses is very common, they are prescribed for the correction of refractive errors that cannot be treated by glasses such as aphakia, keratoconus and strong anisometropia, or as alternatives to glasses. Contact lenses can cause serious complications that are not always easy for patients to manage [1]. Infectious complications in contact lens wearers are a real diagnostic and therapeutic emergency. These infections can be bacterial, amoebic (due to wearing contact lenses in swimming pools, rinsing lenses with tap water or saliva), fungal (due to wearing therapeutic, cosmetic or aphakic lenses, diabetes, alcoholism, immunosuppression, corticosteroids). Infectious complications require emergency treatment. The first line of treatment consists of removing the contact lens and sending it, along with the lens case and lens care product, to the laboratory along with corneal samples and appropriate medical treatment. Infectious keratitis related to contact lens wear is serious and can permanently affect the visual prognosis. The prevention requires a fitting under medical supervision and an awareness of the patients with potential risks of infection.

Non-invasive assessment of the tear film after LASIK.

The aim of the study was to compare the assessment of the ocular surface using classic methods with the newly developed keratoscopy-based MYAH (Topcon EU, Visia Imaging, Japan) device after femtosecond laser-assisted in situ keratomileusis (LASIK). This cross-sectional and observational study analyzed 80 eyes of 40 patients. Tear film and ocular surface evaluation were performed at baseline, postoperative week 1, and month 1. Measurements obtained using the Schirmer I test and invasive tear-film breakup time (I-TBT) were compared with non-invasive evaluation of the tear break-up time (NI-TBT), tear meniscus height (TMH) and blink analysis obtained using the MYAH device. Findings were correlated with the Ocular Surface Disease Index (OSDI) questionnaire in all subjects. The study included 80 eyes of 40 consecutive patients (21 males and 19 females) with a mean age of 26.6 ± 5.9 years (18-40 years) and a mean spherical equivalent value of -3.64 D (-9.63 to -0.25 D). There was a significant decrease in Schirmer I test (19.21 ± 8.4 vs. 16.61 ± 9.1 vs. 14.69 ± 9.86, p= 0.02, respectively) and I-TBT values (8.59 ± 3.4 vs. 7.4 ± 3.25 vs. 6.17 ± 3.01, p=0.03 respectively). OSDI values showed a significant increase after LASIK (11.56 ± 6.3 vs. 17.24 ± 7.5 vs. 14.71 ± 9.6, p=0.03, respectively). 5% level NI-TBT was significantly lower at 1 week 6.75 and 1 month 7.45 than baseline 13.2 at follow-up (p=0.037). Ocular protection index (6.6 vs. 2.3 vs. 2.6, p=0.009, respectively) and blink/minutes (18 vs. 17 vs. 15, p=0.002, respectively) values showed a statistically significant decrease. Our data detected a weak correlation between I-TBT and noninvasive first TBT, 5% level TBT parameters at month 1 follow-up. This study also found no correlation between contact lens use, older age, female gender, and pre-operative refractive error with the noninvasive MYAH dry eye parameters. This study demonstrated the ability of the new keratoscopy-based MYAH device to detect changes in the short term after LASIK surgery.

Infectious and Noninfectious Corneal Ulcers in Ocular Graft-Versus-Host Disease: Epidemiology, Clinical Characteristics, and Outcomes

To evaluate the incidence, clinical characteristics, microbiological profile, and therapeutic outcomes of corneal ulcers in individuals with chronic ocular graft-vs-host disease (coGVHD). Retrospective clinical cohort study. Review of individuals diagnosed with coGVHD following hematopoietic stem cell transplantation (HSCT) who were seen at the Bascom Palmer Eye Institute between May 2010 and November 2021. Baseline demographics, clinical characteristics, microbiological profile, risk factors for corneal ulceration, and treatment outcomes were collected. Etiology was deemed infectious in individuals with a positive culture or appropriate clinical scenario (presence of stromal infiltrate or hypopyon); otherwise, ulcers were presumed to be noninfectious. Treatment success was defined as reepithelialization with infiltrate resolution, and treatment failure as progression to corneal perforation or keratoplasty. Kaplan-Meier survival analysis estimated the incidence of ulceration. Cox regression analyses examined demographic and risk factors. Infectious and noninfectious ulcer groups were compared using 2-way independent t tests, 1-way analysis of variances, and χ2 tests, as appropriate. 173 individuals were included (53.7±14.4 years old; 59.0% male). Thirty-three individuals developed an ulcer 74.5±54.3 months after HSCT, with estimated 5- and 10-year incidences of 14% and 30%, respectively. Twenty-two (66.6%) ulcers were deemed infectious (15 microbiologically confirmed, 7 clinically) and 11 (33.3%) were deemed noninfectious. Risk factors for corneal ulceration included Black race (hazards ratio [HR] 2.89, 95% CI 1.30-6.42, P < .01), previous ocular surgery (HR 9.16, 95% CI 3.86-21.72, P < .01), eyelid margin abnormalities (HR 3.44, 95% CI 1.69-6.99, P < .01), and topical steroid use (HR 2.74, 95% CI 1.33-5.62, P < .01). Conversely, contact lens use reduced the risk of corneal ulceration (HR 0.29, 95% CI 0.13-0.66, P < .01). Infectious ulcers had a significantly higher frequency of treatment failure than noninfectious ulcers (57.1% vs 20.0%, P=.04). Corneal ulceration is a potential complication of coGVHD, with several clinical features identified as risk factors. Infectious ulcers had worse outcomes than noninfectious ulcers.

The Epidemiological Profile and Predisposing Factors of Microbial Keratitis Over a 10-Year Period at a Tertiary Hospital in Central Saudi Arabia.

To evaluate the demographic and predisposing factors and clinical presentation of microbial keratitis (MK) patients over 10 years at a tertiary hospital in central Saudi Arabia. In 2020, a retrospective review of data from clinical and pathology departments from 2010 to 2019 was conducted. Demography includes age, gender, residence, and the risk factor of microbial keratitis, clinical features, and organism profile as number and percentage. We reviewed 181 eyes of 179 patients with microbial keratitis. The mean age was 40.1 years. Contact lens usage(55; 30%), ocular trauma (30; 16.5%), and ocular surface diseases(42; 23.2%) were the main predisposing factors. Hypopyon was noted in 60 (33%) eyes, impaired vision at presentation was observed in 78 (43%) eyes, and endophthalmitis with microbial keratitis was noted in eight (4.4%) eyes at presentation. Ninety-eight (54,1%) cases were culture positive, while gram-positive organisms were seen in 50 (27.6%) eyes, gram-negative organisms in 35 (19.3%) patients, and fungi in 13 (7.2%) patients. Microbial keratitis was central in 67 (37%), paracentral in 94 (52%), and peripheral in 20 (11.3%) patients. All instances of fungal keratitis occurred in the eyes of men who work in the agriculture field. Standard operating procedures to manage microbial keratitis at primary and secondary eye care levels are recommended. Health promotion to prevent trauma, appropriate useof contact lens, and early treatmentcould prevent the incidence ofmicrobial keratitis.

Unilateral Eyelid Swelling Secondary to Local Palpebral Conjunctival Amyloidosis in a Young Patient

Purpose: We report a young patient with unilateral eyelid swelling secondary to local, palpebral conjunctival amyloidosis.Case summary: A 31-year-old male was referred with a 6-month history of mild, right upper eyelid swelling but without redness or tenderness. Slit-lamp examination revealed a diffuse hemorrhagic papilliform lesion on the right upper palpebral conjunctiva, this raised a suspicion of giant papillary conjunctivitis. As the lesion was unilateral, there was no history of allergic disease or contact lens use, and the lesion was refractory to topical anti-inflammatory treatment so, excisional biopsy of the right upper palpebral conjunctiva was performed. During the operation, the papilliform lesion was removed, it peeled off on the blade. After surgery, the eyelid swelling improved. Histopathological examination revealed an eosinophilic amorphous deposit consistent with amyloidosis. Further evaluation ruled out systemic amyloidosis; there were no abnormal findings. Thus, we diagnosed primary localized amyloidosis of the palpebral conjunctiva. At the 1-year follow-up, no recurrence was detected.Conclusions: Although primary localized amyloidosis of the palpebral conjunctiva is rare, this should be considered if chronic eyelid swelling accompanied by another conjunctival lesion such as giant papillary conjunctivitis is encountered.

Comparison Between Ocular Biometric Parameters and Intraocular Pressure With and Without Contact Lenses.

To compare the values of central corneal thickness, anterior chamber depth (ACD), lens thickness (LT), vitreous length (VL), axial length (AL), and corneal-compensated intraocular pressure performed with and without contact lenses (CL). Forty volunteer participants (16 men and 24 women, 24.2±2.9 years) were recruited. In a single visit, participants underwent autorefraction, keratometry, biometry, topography, pachymetry, and tonometry with the naked eye (without CL). Then, biometry, pachymetry, and tonometry were repeated twice wearing two CL (somofilcon A and nesofilcon A) fitted in a random order. Many of the ocular biometric values were affected by the use of CL during measurements (paired t test; all P ≤0.003), except for LT and VL (Wilcoxon test; both P ≥0.272). Corneal-compensated intraocular pressure was also affected by contact lens wear during measurements, obtaining lower values when wearing them (Wilcoxon test; all P ≤0.001). Central corneal thickness, ACD, AL, and corneal-compensated intraocular pressure measurements cannot be performed while wearing CL. However, LT and VL measurements were not affected by any contact lens use. In addition, it was observed that ACD results from both devices are not interchangeable either when measured with the naked eye or using any contact lens.

Refractive Error and Axial Length and Their Related Factors in 8-Year-Old Japanese Children: The Yamanashi Adjunct Study of the Japan Environment and Children's Study (JECS).

To investigate the distribution of visual acuity, refractive error, and axial length in 8-year-old children who participated in an additional survey in Yamanashi Prefecture of the Japan Environmental Children's Study (hereafter referred to as JECS-Y) conducted from 2019 to 2021. Eight-year-old children who participated in the JECS-Y study were subjected to noncycloplegic measurements of refractive error and axial length. If the uncorrected visual acuity was less than 20/20, the best corrected visual acuity was evaluated in accordance with the autorefraction data. A questionnaire was administered regarding the parent's history of eyeglass wear or contact lens use. Among the 400 participating children, the rate of uncorrected visual acuity of 20/20 or better in both eyes was 70.4%. The mean equivalent spherical equivalent error for both eyes was -0.366 ± 1.016 D. The mean axial length was 23.08 ± 0.225 mm in all patients. The males showed significantly longer axial length than the females despite no differences in body height. There was a significant correlation between axial length, spherical refractive, and uncorrected visual acuity. The children of parents with a history of wearing eyeglasses or contact lenses showed a significantly more myopic equivalent refractive error than those without a history. This study clarified the current state of refractive error in 8-year-old children and the association of inheritance with refractive error. In addition, the axials were significantly longer in male patients.

Fusarium Keratitis on the Rise - a Clinical Review.

Fungal keratitis due to Fusarium species is a rare but serious ocular disease. Due to its rapid progression, often late diagnostic confirmation as well as limited topical treatment options, this is potentially sight threatening. Increasing contact lens use and global climate change have been suggested to be factors leading to an increase in cases of fusarium keratitis, even in regions with moderate climate. Early recognition and initiation of antimycotic treatment, as well as early surgical treatment by penetrating keratoplasty are decisive for the outcome.

Characterization of Polymicrobial and Antibiotic-Resistant Infectious Keratitis in a County Hospital Setting.

Infectious keratitis is a serious cause of visual impairment, particularly in low-income communities. This study examines the associations between social risk factors and polymicrobial keratitis, multidrug resistance, pathogen spectrum, and outcomes at a county hospital. We performed a retrospective study of Zuckerberg San Francisco General Hospital patients treated for infectious keratitis from 2010-2021. Multivariable regression was performed to analyze the relationships between social, medical, and psychiatric risk factors with polymicrobial growth, multidrug resistance, and clinical outcomes. Of 174 patients with infectious keratitis, 44 (25%) had polymicrobial growth. Six patients (14%) with polymicrobial growth had multidrug-resistant organisms. Homeless patients were more likely to present with polymicrobial infection (OR 3.4, p = 0.023), and polymicrobial infections were associated with multidrug-resistant organisms (p = 0.018). Smoking, drug use, HIV positivity, prior corneal pathology, and contact lens use were not associated with an increased risk of polymicrobial infection. Eleven patients (6.3%) were started on topical antibiotics prior to presentation; of these, none developed polymicrobial infections or multidrug-resistant organisms. Polymicrobial infections increased the likelihood to initiation of fortified antibiotics (OR 2.9, p = 0.011) but did not impact ulcer size, final visual acuity, time to resolution, or likelihood of emergent procedures. Homelessness correlates with an increased risk of polymicrobial keratitis and subsequent multidrug resistance, supporting initiation of broad antibiotic coverage in this population. Prior topical antibiotics did not increase risk of polymicrobial infection. Polymicrobial infection did not significantly worsen clinical outcomes.

Ocular Symptoms in Adolescents and Young Adults With Electronic Cigarette, Cigarette, and Dual Use

Despite increasing use of cigarettes and electronic cigarettes (e-cigarettes) and related health effects among youth, few studies have reported their effects on eyes. To examine the frequency and severity of ocular symptoms (ocular discomfort, pain, burning, itching, redness, dryness, glare, blurriness, strain, and headaches) in young e-cigarette and cigarette users. In an observational cross-sectional study, a survey conducted in May 6 to 14, 2020, asked participants about use (ever, past 30 days, and past 7 days) of e-cigarettes and cigarettes. The participants included US individuals aged 13 to 24 years. Associations between vision-related outcomes (general vision, severity/frequency of ocular symptoms) and tobacco use were analyzed using weighted multivariable logistic regressions, adjusting for sociodemographic factors, contact lens use, and other combustible use. There were 2168 never users, 2183 ever users, 1092 past 30-day users, and 919 past 7-day users of e-cigarettes; 55.9% of e-cigarette ever users also used cigarettes (dual users). Of the 4351 respondents, 63.8% identified as female, and mean (SD) age was 19.1 (2.9) years. Between 1.1% and 3.9% of ever dual users reported severe to very severe ocular symptoms; between 0.9% and 4.3% reported daily symptoms, which was higher than the proportion of symptoms in e-cigarette- or cigarette-only users. Past 7-day dual users had more severe itching (adjusted odds ratio [AOR], 2.37; 95% CI, 1.36-4.13; P = .002), redness (AOR, 2.58; 95% CI, 1.50-4.46; P = .001), dryness (AOR, 2.89; 95% CI, 1.64-5.08; P < .001), glare (AOR, 2.56; 95% CI, 1.50-4.35; P = .001), blurriness (AOR, 2.47; 95% CI, 1.36-4.50; P = .003), headaches (AOR, 2.31; 95% CI, 1.34-4.00; P = .003); and more frequent pain (AOR, 3.45; 95% CI, 2.09-5.68; P < .001), burning (AOR, 3.08; 95% CI, 1.86-5.09; P < .001), and redness (AOR, 2.72; 95% CI, 1.69-4.36; P < .001) than all other participants. Past 30-day dual users had more severe dryness (AOR, 2.65; 95% CI, 1.61-4.36; P < .001) and more frequent pain (AOR, 3.33; 95% CI, 2.12-5.21; P < .001) than all other participants. Ever dual users experienced more severe dryness (AOR, 1.60; 95% CI, 1.05-2.43; P = .03) and blurriness (AOR, 1.79; 95% CI, 1.21-2.64; P = .003) and more frequent pain (AOR, 1.69; 95% CI, 1.13-2.53; P = .01) and blurriness (AOR, 1.63; 95% CI, 1.13-2.36; P = .009) than never users. In this cross-sectional US study, adolescents and young adult users of both e-cigarettes and cigarettes had a higher likelihood of experiencing severe and frequent ocular symptoms, with past 7-day users reporting more symptoms than past 30-day users or ever users. These findings provide additional reasons for users of e-cigarettes and cigarettes to reduce their tobacco use to possibly prevent or minimize ocular symptoms.

MANAGEMENT OF IRREGULAR ASTIGMATISM AFTER CORNEAL ULCER WITH RGP CONTACT LENS IN PATIENTS WITH HIGH MYOPIA

Introduction: RGP contact lenses are indicated for correcting refractive errors in cases of high myopia and irregular astigmatism due to changes in the corneal curvature. Case Report: A 30-year-old female came with complaints of redness, pain, glare, blurred vision, and yellow discharge and tearing on the left eye for 2 days, history of using Soft Contact Lens (SCL) since 10 years old due to myopia. Visual Acuity of the right eye (VOD) with glasses was 6/12 and VA of the left eye (VOS) was 1/300. The patient was diagnosed with left eye corneal ulcer and was given levofloxacin eye drops, hydroxypropyl methylcellulose eye drops, and vitamin C 1000 mg. The left eye's corneal ulcer healed after three days, but the scarring left the cornea's surface uneven.. Patients were advised to replace the contact lenses with RGP contact lenses. After the RGP fitting, the appropriate size was obtained in both eyes and the patient adapted well with VOD RGP 1.0 and VOS RGP 1.0 False. The patient felt helped by the RGP contact lens. Discussion: RGP was given because it helped reduce the bacterial infection risk. RGP has a higher oxygen transmissibility and maintains the cornea's curvature to become more regular. It can be utilized as an optical device to repair excessive myopia in addition to irregular astigmatism. Conclusion: RGP contact lens can be an option for irregular astigmatism after corneal ulcers due to the SCL use in patients with high myopia to provide good outcomes.

Acanthamoeba castellanii trophozoites that survive multipurpose solutions are able to adhere to cosmetic contact lenses, increasing the risk of infection

Amoebae of the genus Acanthamoeba are etiological agents of amoebic keratitis, for which up to now there is no treatment of choice and one of its main risk factors is the use of contact lenses, including cosmetic contact lenses. Recently there has been an increase in amoebic keratitis cases due to the use of cosmetic contact lenses. Therefore, having a solution for the care of lenses with an efficient disinfectant effect that prevents the adhesion of trophozoites to lenses becomes essential. This study was carried out to determine the effect of 8 multipurpose contact lenses care solutions on Acanthamoeba castellanii trophozoites viability, and the efficiency of two of them to prevent the trophozoites adherence onto two cosmetic contact lenses (Acuvue 2, approved by the US Food and Drug Administration, and Magic Eye CCL, not approved). After 3 h of interaction, only AO Sept Plus, OPTI FREE Replenish, Renu Plus, Bio True and Multiplus significantly reduced the number of viable trophozoites with respect to the control; at 6 h Renu Plus, and at 12 h Conta Soft Plus and Multiplus, maintained the inhibitory effect. Only Opti Free Pure Moist did not significantly reduce the number of viable trophozoites. Multiplus and Opti Free Pure Moist (selected for their greater and lesser antiamibic effect) significantly reduced trophozoite adherence to both lenses; however, Opti Free Pure Moist was more efficient, despite the fact that A. castellanii adhered similarly to both lenses. Our results show that in all the multipurpose solutions evaluated, hundreds of viable A. castellanii trophozoites remain after several hours of incubation. Therefore, storage of the lenses in their case with MPS maintains the potential risk of amoebic keratitis in, cosmetic contact lenses wearers. Moreover, the use of CCL, not approved by the FDA, can increase the risk factor for AK since its poor manufacture can favor the permanence of amoebae, in addition to being a risk for corneal integrity.