Effect Of Phacoemulsification Research Articles

The effect of phacoemulsification on visual function among Filipino cataract patients measured by a validated Filipino translation of Catquest-9SF

BackgroundThis study developed a validated Filipino version of the Catquest-9SF and administered it to cataract patients pre- and post- surgery.MethodsThis is a two-phase, single-center, cross sectional, questionnaire type study. The study included participants decked for surgery who are 18 years and above. Sampling was done purposively. The Catquest-9SF questionnaire was translated into Filipino, according to a standard procedure, and validated. The validated version was administered to the participants before and after unilateral cataract surgery. Data were analyzed using Rasch analysis.ResultsSixty-one patients were enrolled in the study. The preliminary Rasch analysis showed misfit of item 2, which was subsequently excluded from analysis. The remaining eight items showed person separation index of 2.70, reliability coefficient of 0.88, infit of 0.66 to 1.17, outfit of 0.66 to 1.49, observed raw variance explained by measures of 55.3% and eigenvalues of 1.9, 1.4, 1.2, 1.0 and 0.9. There was slightly poor targeting (mean person location 1.24) and multidimensionality but no evidence of differential item functioning (DIF). High internal consistency of items were observed (Cronbach’s alpha ≥ 90). Comparison of responses between pre- and post-surgery showed highly significant marginal homogeneity (p < 0.001).ConclusionThe Filipino translation of Catquest-9SF, the Catquest-8SF-PH, was highly valid. It showed improved perceived visual outcomes among Filipino patients post-cataract surgery.

Effect of phacoemulsification on intraocular pressure in glaucoma patients

Introduction: Cataracts and Glaucoma are the leading causes of irreversible blindness worldwide. Lens extraction using the Phacoemulsification technique can be an effective IOP-lowering treatment for all types of glaucoma.&#x0D; Objective: To study was to measure the Intra-Ocular Pressure before and after phacoemulsification and to determine the mean change in Intra-Ocular Pressure.&#x0D; Methodology: This study included 53 glaucoma patients with Primary Open Angle Glaucoma (POAG), Angle Closure Glaucoma (ACG), and Pseudoexfoliation (PXF) % (n=4) Glaucoma who visited the Glaucoma Department of Al-Shifa Trust Eye Hospital Rawalpindi. Pre and post-interventional study designs were used. Based on a slit lamp examination, patients were labeled as having cataracts in glaucomatous eyes. Pre-operative Intraocular pressure (IOP) was noted using Goldmann Applanation Tonometer (GAT). Patients were referred for Phacoemulsification and their IOP was noted after 2 weeks of surgery. The non-Probability convenient sampling Technique was used. Paired t-test was used to find the mean change in IOP. &#x0D; Results: The mean age of respondents was (62.5±10.25) and had a maximum value of 81 years and a minimum value of 40 years among a sample of 53 respondents. The mean IOP before phacoemulsification was (16.25±7.251) the mean IOP after phacoemulsification was (13.28±5.940) and the mean difference was (2.962 ±8.364) in glaucomatous patients having cataracts. This difference was found to be statistically significant (p-value&lt;0.05).&#x0D; Conclusion: In Glaucomatous patients having cataracts after phacoemulsification there is a significant reduction in IOP and medications after surgery. This IOP reduction was more marked in POAG patients as compared to other types of Glaucoma.

Effect of Phacoemulsification on Corneal Endothelium in Type 2 Diabetic Patients versus Normal Patients Phacoemulsification on Corneal Endothelium

Effect of Phacoemulsification on Corneal Endothelium in Type 2 Diabetic Patients versus Normal Patients Phacoemulsification on Corneal Endothelium

Effect of phacoemulsification on bleb type and intraocular pressure in eyes with pseudoexfoliative glaucoma and filtering blebs

Effect of phacoemulsification on bleb type and intraocular pressure in eyes with pseudoexfoliative glaucoma and filtering blebs

Effect of phacoemulsification and intraocular lens implantation in the treatment of patients with high myopia complicated with cataract

Effect of phacoemulsification and intraocular lens implantation in the treatment of patients with high myopia complicated with cataract

Specular Microscopic Corneal Endothelial Cell Changes following Uneventful Phacoemulsification in Patients with Gout.

Purpose To assess the effects of phacoemulsification on the corneal endothelium in patients with gout and age-related cataracts. Methods Eighty-eight patients who underwent uneventful phacoemulsification for age-related cataracts were included in this retrospective comparative study. The patients were divided into two groups: group A included 31 patients with gout and tight control of uric acid levels and group B included 57 patients without gout or any other systemic disease. All patients completed follow-up assessments over 6 months, and the two groups were compared in terms of changes to their specular microscopic values. Results Both groups showed marked improvement in uncorrected and best-corrected visual acuity at the end of the follow-up period. Corneal endothelial cell loss was more severe in group A than in group B, with a mean difference of 221.35 ± 43.87 in group A and 169.88 ± 52.67 in group B at the sixth month (p < 0.001). The difference between the two groups in terms of other specular microscopic values did not reach statistical significance. Conclusion Patients with gout are more prone to corneal endothelial cell damage after phacoemulsification than those without gout. To confirm these results, future studies with a prospective design and longer durations of follow-up are needed.

Cataract surgery in patients with age-related macular degeneration: questions and controversies

The issue of surgical treatment of cataracts in patients with age-related macular degeneration (AMD) is important due to a high incidence of the comorbid course of the two diseases. The effectiveness of phacoemulsification of cataract (FEC) in patients with AMD, its influence on the course of AMD, the characteristics of visual functions, and the quality of life of these patients are still controversial. The study of risk factors for the development of choroidal neovascularization, the influence of the characteristics of surgical treatment and the number of injections on the incidence of intraoperative complications seems to be quite relevant for understanding the possible mechanisms of AMD progression after FEC. This study is instrumental in the development of measures preventing the reactivation of the pathological process, improving visual functions and the quality of life of patients after surgical treatment of cataracts. The range of contraindications for FEC in patients with neovascular AMD is rather limited , and continuation of anti-VEGF therapy stops active exudation and increases visual acuity in patients with neovascular AMD. Maintaining functional parameters, improving peripheral vision, contrast sensitivity, improving the quality of OCT imaging provides both significant benefits for the patient and boosts the control of the disease, increasing the accuracy of monitoring.

Effect of Intraocular Lens Biomaterials on the Treatment of Primary Angle Closure Glaucoma

To explore the effect of phacoemulsification along with intraocular lens (IOL) implantation on the treatment of primary angle closure glaucoma (PACG), a total of 50 patients (54 eyes) with PCG who had undergone surgery were selected as the research objects, in which, there were 16 eyes with the acute PACG in pre-clinical stage, 20 eyes with acute PACG during acute attack, and 18 eyes with chronic PACG, and all patients received phacoemulsification along with IOL implantation therapy. The patient’s best corrected visual acuity, anterior chamber (AC), anterior depth, intraocular pressure (IOP), visual field, and fundus conditions were measured during the operation, after the operation, and during the follow-up period. The postoperative visual acuity of the patients with three types of PACG was greatly corrected, in which 30 eyes had corrected visual acuity above 0.5, and there were statistically significant differences (SSDs) (P &lt; 0.05); angle closure of 54 eyes had different degrees of improvement, the opening degree of the acute angle closure is better than that of the chronic angle closure, and there were SSDs (P &lt; 0.05); each of 54 eyes showed different degrees of deepening in the central AC, and there were SSDs (P &lt; 0.05); postoperative IOP decreased greatly in all 54 eyes, and there were SSDs (P &lt; 0.05). In conclusion, the IOL implantation based on phacoemulsification can effectively treat the PACG, at the same time reduce IOP, promote angle opening, enhance vision field of the patients, and ultimately achieve the purpose of improving surgical success.

Features of Phacoemulsification in Macular Pathology. Part 1. Diagnostic Aspects

Cataract is the most common cause of blindness worldwide. The standard treatment for cataracts is phacoemulsification with implantation of an intraocular lens (IOL). Removing cataracts can significantly improve vision and the quality of life associated with vision. The review considers the necessary biometric studies before phacoemulsification of patients with macular pathology, the long-term effects of phacoemulsification in patients with various macular pathologies, the features of implantation of mono- and multifocal IOLs in such patients, as well as possible complications after phacoemulsification in patients with macular pathology. The importance of examination of the macula before phacoemulsification of cataract has been shown. A review of changes in different eye’s parts after phacoemulsification in patients with various pathologies: with the progression of myotic traction, with combined cataract and glaucoma, in patients with diabetes, with an epiretinal membrane, and the features of implantation of multifocal lenses and IOLs with UV protection are considered. Not only the postoperative condition is assessed, but also the changes between the preoperative and postoperative conditions. In addition, the review demonstrates the dynamic healing processes and changes in macular parameters (after different times — from several days to several years) in order to obtain a rational analysis result.

Cataract Surgery in Ocular Mucous Membrane Pemphigoid: A Risk, a Benefit or Both?

he aim of this study is to evaluate the effectiveness of phacoemulsification and Intraocular Lens (IOL) implantation in OcMMP patients. Data from 15 eyes of 10 patients affected by OcMMP that underwent phaco+IOL have been evaluated. Each patient was examined a week before surgery and at day 1, day 3, day 7 and 30 days after surgery

Effect of phacoemulsification on intraocular pressure and bleb function in eyes with previous trabeculectomy

AIM: To observe the intraocular pressure (IOP) control and bleb function after phacoemulsification in patients with previous history of successful/qualified success mitomycin-C augmented trabeculectomy. METHODS: This was a retrospective cohort study. Data of patients who had undergone trabeculectomy with subsequent cataract surgery were extracted from server. All patients had previous either success/qualified success trabeculectomy done. They went through uncomplicated phacoemulsification via clear corneal incision. Postoperative follow-up, review of bleb and IOP readings using Goldmann tonometer were taken. Details that were investigated include postoperative IOP control, visual improvement, number of anti-glaucoma medications, as well as the timing from trabeculectomy to phacoemulsification. Comparison with control group was made. RESULTS: Fifteen eyes from thirteen patients fulfilled the criteria for study and had undergone uncomplicated phacoemulsification between January 2014 to June 2016 on a post-trabeculectomy eye. Two of the eyes had secondary glaucoma while the other thirteen had primary glaucoma. All phacoemulsifications were done at least 6mo after trabeculectomy (mean 14.7±4.3mo). There was only 1 eye (6.7%) requiring anti-glaucoma medications before the cataract surgery. This number increased to 4 (26.7%) at 1-year post phacoemulsification. The number further increased to eight (53.3%) at 2y post-phacoemulsification. The number of anti-glaucoma drops needed after surgery at 2y ranged from 2-4. In all the 15 eyes, there was no statistically significant change in IOP control between pre-cataract surgery (mean 13.4±2.9 mm Hg) compared to 1y (mean 14.1±3.2 mm Hg, P=0.357) and 2y (mean 15.1±3.3 mm Hg, P=0.212) post phacoemulsification. Visual improvement after phacoemulsification however is significant, from a preoperative average visual acuity of logMAR 1.52±1.00 to a postoperative average visual acuity of 0.53±0.54 (P=0.000, paired t-test). CONCLUSION: This analysis shows significant visual improvement following cataract surgery in post-trabeculectomy patients without compromising IOP control. However, a reduced bleb function is noted following the surgery evidenced by the increase in number of anti-glaucoma drops used after surgery especially two years after the cataract surgery. Patients should be counselled regarding the possibility of restarting on anti-glaucoma medications post-phacoemulsification. The timing and sequence of cataract and glaucoma surgery should be optimized for best outcome.

Effect of phacoemulsification on corneal endothelium in type 1 and type 2 diabetes mellitus

Effect of phacoemulsification on corneal endothelium in type 1 and type 2 diabetes mellitus

Comparative study between the visual outcome of phacoemulsification and small incision cataract surgery

Introduction Cataract is still one of the most common causes of visual impairment worldwide. Phacoemulsification is the primary method for cataract surgery in developed countries. However, it is associated with high cost and small incision cataract surgery (SICS), which has become an alternative surgery for phacoemulsification, mostly in developing countries. Patients and methods This study was carried out aiming to compare the effectiveness [postoperative visual acuity (VA)] of phacoemulsification versus SICS. Four hundred and fifty cataract patients, allocated into two groups with no statistically significant differences in their basic characteristics, were included in the current study. Patients in the first group underwent phacoemulsification and those in the second group underwent SICS; patients were followed up for 28 days. Results This study revealed no statistically significant differences between the phacoemulsification and SICS groups in visual outcome or proportion of patients with normal vision at follow-up. Furthermore, no statistically significant differences were found between both methods in the incidence of intraoperative or postoperative complications. The effectiveness of phacoemulsification and SICS in improving VA was found to be similar. SICS should be considered for more frequent use in high-volume mass cataract surgery. Conclusion In conclusion, SICS has comparable effectiveness with phacoemulsification in improving VA and should be considered in developing countries and rural areas.

Effect of Phacoemulsification on Intraocular Pressure in Cataract Patients Attending a Tertiary Care Centre in Kerala- A Retrospective Cohort Study

Introduction: Cataract is the leading cause of preventable blindness worldwide. It is caused by the degeneration and opacification of the lens fibres. Phacoemulsification is the current treatment modality available for cataract. However, there is a possibility of an increase in the anterior chamber depth after phacoemulsification. This occurs as a result of the removal of the bulky lens matter and implantation of a thin intraocular lens, thereby reducing the intraocular pressure. Aim: To compare the preoperative and postoperative Intraocular Pressure (IOP) changes and the factors associated with intraocular pressure changes among patients who underwent phacoemulsification in a Tertiary Care Centre in Kerala. Materials and Methods: A retrospective cohort study was carried out among 610 patients, who underwent phacoemulsification surgery from January 1st, 2017 to December 31st, 2017. Using a checklist, the following data such as age, sex, Date of Surgery, Last recorded preoperative intraocular pressure of both eyes, First recorded Postoperative intraocular pressure of both eyes any time after 3 months, Axial length, Grade of cataract and comorbidities like diabetes, hypertension, dyslipidaemia, glaucoma and Coronary Artery Disease (CAD) was obtained from the hospital Information System. Data collected was entered into an MS Excel and was analysed using SPSS version 20. Frequency and percentages were calculated and association assessed using Chi-square test. Paired t-test was applied to find the mean changes in the IOP levels and p-value was ≤0.05, thus significant. Results: It was observed that there was a mean reduction of 7.907 mmHg in ocular hypertensives when compared to ocular normotensives following phacoemulsification. This finding was found to be statistically significant (p-value &lt;0.001). There was association between grade of cataract and change in IOP which was significant with a p-value of 0.031. Conclusion: Phacoemulsification is the treatment of choice in patients with cataract. In the study, it was found that ocular hypertensives who underwent phacoemulsification had a significant drop in intraocular pressure post-surgery. Phacoemulsification can be employed in patients who have both ocular hypertension and cataract. This procedure can improve vision and in addition to having a positive effect on IOP reduction.

超声乳化术对年龄相关性白内障黄斑部超微结构的影响

超声乳化术对年龄相关性白内障黄斑部超微结构的影响

The Effect of Phacoemulsification on Corneal Endothelial Cells Morphology and Thickness

Purpose: To compare the corneal endothelial cells morphology and central corneal thickness (CCT) before and after phacoemulsification in Sudanese population.&#x0D; Place and Duration of Study: Al-Neelain eye hospital, Khartoum, Sudan, from January 2018 to May 2018.&#x0D; Study Design: Observational longitudinal study.&#x0D; Methods: One hundred and forty eyes of 140 patients with immature senile cataract were selected by convenient sampling. The age ranged from 40 to 85 years. The patients underwent complete ocular examination including morphology of corneal endothelial cells and CCT using computerized non-contact specular microscope. Inclusion criteria for the study was eyes with normal corneal endothelial cells and cell density more than 1000 cells/mm2. We excluded patients with ocular or systemic diseases, previous history of intraocular surgery, refractive surgery or trauma as well as contact lenses wear. The patients underwent phacoemulsification by a single surgeon. The examination parameters were repeated one month after surgery. Descriptive and comparative statistical analyses were performed using SPSS for Windows Version 21.0.&#x0D; Results: There was significant reduction in mean endothelial cells density after phacoemulsification compared to baseline with p &lt; 0.001. There was also significant post-operative reduction in mean endothelial cells number as compared to baseline (P value &lt; 0.001). Mean endothelial cells hexagonality was reduced after surgery with P value of 0.003. No significant difference was found between mean coefficient variation of endothelial cells size before and after phacoemulsification (P = 0.55). Central corneal thickness showed significant increase post-operatively, P = 0.003.&#x0D; Conclusion: Phacoemulsification causes significant damage to corneal endothelium cells, including decrease in corneal endothelial cell density, hexagonality and cell number.&#x0D; Key Words: Corneal endothelium, Endothelial cell density, Central corneal thickness, Phacoemulsification.

Effects of Phacoemulsification Combined With Goniosynechialysis on Primary Angle-closure Glaucoma

Effects of Phacoemulsification Combined With Goniosynechialysis on Primary Angle-closure Glaucoma

The effect of phacoemulsification of bilateral cataracts, performed at different intervals, on the macular area of the retina

Purpose. A comprehensive assessment of the state of macular retina after phacoemulsification of two eyes performed at different intervals between operations according to optical coherence tomography (OCT) data. Materials and methods. We examined 93 patients (186 eyes) aged 65.7 ± 1.6 years with bilateral age cataract after phacoemulsification of both eyes performed at different intervals between the operations: 1–5 days — 22 patients (44 eyes), 1–3 weeks — 31 patients (62 eyes), 4 or more weeks — 40 patients (80 eyes). Before surgery, visual acuity of the first eye was, on average, 0.38 ± 0.05, while that of the second eye averaged 0.41 ± 0.05. The operations were performed on the «Infiniti Vision System» (Alcon) phacoemulsifier by Ozil technology through a corneal tunnel 2.2 mm long by one and the same surgeon with no complications. The Phaco chop technique was used. All patients underwent retinal examination by Optovue Avante OPT (OPTOVUE, USA) according to the scanning Protocol Raster and, partly, by Retina map (including central retinal thickness and volume of the macula in the 5 mm zone) before the operation, and 1, 2, 4, 12 weeks after surgery, on both eyes. Results. Before surgery, the average central retinal thickness and the volume of the retina in the area of 5 mm, in both operated eyes were almost identical: the first eye revealed 271.0 ± 7.5 μm, and 5.625 ± 0.040 mm3, the second one revealed 270.0 ± 8.5 μm, and 5.628 ± 0.040 mm3. In the postoperative period, the results showed no statistically significant differences (p &gt; 0.05) between the central retinal thickness and volume in the 5 mm zone before and after surgery in both eyes, regardless of the intervals between operations. Conclusion. The absence of a significant difference in the macular retina response to surgery, confirmed by OCT data, indicated the safety of operations on both eyes regardless of the intervals between them.

Comparing the Effectiveness of Phacoemulsification + ECP Laser and Phacoemulsification Alone for Glaucoma Patients

Comparing the Effectiveness of Phacoemulsification + ECP Laser and Phacoemulsification Alone for Glaucoma Patients

The effect of phacoemulsification on ocular surface of cataract with Meibomian gland dysfunction

Objective To observe the effect of phacoemulsification on ocular surface function in cataract patients with Meibomian gland dysfunction (MGD). Methods A prospective cohort study. Total of 81 eyes of 78 cases of cataract with MGD in Wenrong Hospital of Jinhua from Mar.2016 to Feb.2018 were enrolled in this study.All patients underwent phacoemulsification and intraocular lens implantation.The ocular surface function was observed and all cases were followed up for 3 months. Results The Schirmer test (SIt) and break up time (BUT) at 3 days after operation were higher than those at 1 day before operation (P 0.05), and no significant difference between 3 days after operation and 3 months after operation (P>0.05), and the difference was significant between 1 day before operation and 3 months after operation (P<0.05). Conclusion After phacoemulsification, ocular dysfunction still occurs in patients with cataract and MGD.No significant recovery occurrs after 3 months of follow-up. Key words: Cataract; Disorder, function, Meibomian gland; Phacoemulsification; Function, ocular surface