ABSTRACT
Objectives: To evaluate YAG capsulotomy rates following implantation of two types of trifocal intraocular lenses (IOLs). METHODS: In this retrospective cohort study consecutive patients who underwent cataract surgery with a trifocal IOL from 1st May 2017 to 30th October 2019 at Aga Khan University Hospital, Karachi were included. Eyes which either had an AT Lisa Tri or Alcon PanOptix IOL implant were included. The primary outcome measure was Nd: YAG laser. Univariate analysis of all predictor variables was performed followed by a multivariate regression analysis of those which were significant. A p-value of < 0.05 was taken as significant. RESULTS: A total of 328 eligible eyes were identified. Nine eyes were excluded. Out of the 319 eyes of 177 patients included in this study, 180 received AT Lisa Tri while 139 of them received Alcon PanOptix Trifocal IOLs. The mean (SD) age of the patients was 52.29 years (±11.04). Gender was equally distributed with 91(51.4%). male patients. Median (IQR) time to laser capsulotomy was 8 months (3-16). Clinically posterior capsular opacification (PCO) was present in 75(23.5%) eyes. A total of 39(12.2%) eyes underwent Nd: YAG laser capsulotomy. Among the AT Lisa Tri group 29 (16.1%) eyes underwent laser capsulotomy compared to 10 (7.2%) (n=10) in Alcon PanOptix group (p=0.016). In both univariate and multivariate analyses, gender and IOL type were statistically significant. CONCLUSIONS: Eyes implanted with AT Lisa Tri showed a significantly increased rate of YAG capsulotomy. A prospective randomized control trial is recommended to confirm these findings.
Subject(s)
Capsule Opacification , Cataract , Laser Therapy , Lenses, Intraocular , Capsule Opacification/epidemiology , Capsule Opacification/etiology , Capsule Opacification/surgery , Humans , Lens Implantation, Intraocular , Male , Middle Aged , Postoperative Complications , Prospective Studies , Prosthesis Design , Retrospective StudiesABSTRACT
OBJECTIVE: To conduct an appraisal of current evidence regarding the effectiveness of EyeSi®-based training of vitreoretinal surgery. METHODS: The systematic review was conducted in July 2020, and comprised literature search on Cochrane Library, PubMed and Embase for articles regarding simulation training in vitreoretinal surgery. The shortlisted articles were subjected to qualitative analysis. Existing evidence was assessed, and predictions on how outcomes may be applied to improve vitreoretinal surgery training were made. The risk of bias of each study was calculated in line with the guidelines of the Cochrane Handbook. RESULTS: Of the 124 articles identified, 7(5.6%) were shortlisted; 5(71.4%) established construct validity; 1(14.3%) discriminate validity and 1(14.3%) concurrent validity. Analysis disclosed minimal bias in the selected studies. CONCLUSIONS: Current evidence on simulation training in vitreoretinal surgery suggests it is a thoroughly validated training tool with minimal risk of bias. Vitreoretinal surgery training programmes should adopt and gauge the impact simulation training has on patient-related outcomes.
Subject(s)
Internship and Residency , Ophthalmology , Simulation Training , Vitreoretinal Surgery , Clinical Competence , Humans , Ophthalmology/educationABSTRACT
OBJECTIVE: To assess the frequency of post-operative complications after immediate sequential bilateral cataract surgery. METHODS: The retrospective study was conducted at the department of surgery/section of ophthalmology, Aga Khan University Hospital, Karachi, and comprised data of patients who underwent immediate sequential bilateral cataract surgery between January 1, 2009, and December 31, 2018. A structured proforma was used to collect data. The primary outcome measure was the incidence of endophthalmitis. Data was analysed using SPSS 23. RESULTS: Of the 352 patients identified, data of 298(84.6%) patients (596 eyes) was analysed. The mean age of the sample was 33.14±25.83 years, with 117(39.26 %) subjects aged <16 years and 181(60.73) aged >16 years. Best-corrected visual acuity improved from -0.5650±8.2027 to -0.0043±4.05. Among 596 eyes, there was no case of unilateral or bilateral post-operative endophthalmitis at 6-week follow-up. CONCLUSIONS: Immediate sequential bilateral cataract surgery was found to be a safe procedure in selected patients undergoing cataract surgery in a low-middle income country.
