Objective:To determine the efficacy of topical Nepafenac (0.1%), administered post-operatively in prevention of Macular Edema (ME), after cataract surgery in patients with Non-Proliferative Diabetic Retinopathy (NPDR).Methods:This randomized control trial was conducted at Armed Forces Institute of Ophthalmology (AFIO), Rawalpindi from Sep 2015 to Sep 2016. Sixty eyes of 60 patients with NPDR underwent phacoemulsification with intraocular lens implantation. Group 1 received 0.1% Nepafenac, 8-hourly, in operated eye after cataract surgery for three months, along with routine post-operative medications. Group-2 received only routine post-operative medications. ME was defined as increase in Central Macular Thickness (CMT) of >10% from pre-operative baseline, measured using spectral domain optical coherence tomography.Results:Mean age of study population was 60.97±4.91 years. Out of 60 patients, 34 (56.7%) were males and 24 (43.3%) were females. Mean pre-operative CMT, 3 months post-operative CMT, mean change in CMT and mean frequency change in CMT of Group-1 was 226.5±10.86µm, 228.83±14.56 µm, 2.33±10.45 µm and 1.05% respectively. Mean pre-operative CMT, three months post-operative CMT, mean change in CMT and mean frequency change in CMT in Group-2 was 223.93±11.69µm, 236.17±16.16 µm, 12.23±12.40µm and 5.51% respectively. ME was observed in one patient (3.3%) in Group-1, and seven patients (23.3%) in Group 2. The difference of mean change in CMT and frequency change in CMT between groups was statistically significant (p<0.05).Conclusion:0.1% topical Nepafenac is effective in prevention of macular edema after cataract surgery in patients with non-proliferative diabetic retinopathy (NPDR).
Objective:To evaluate the correlation between Central Corneal Thickness (CCT) and Visual Field (VF) defect parameters like Mean Deviation (MD) and Pattern Standard Deviation (PSD), Cup-to-Disc Ratio (CDR) and Retinal Nerve Fibre Layer Thickness (RNFL-T) in Primary Open-Angle Glaucoma (POAG) patients.Methods:This cross sectional study was conducted at Armed Forces Institute of Ophthalmology (AFIO), Rawalpindi from September 2015 to September 2016. Sixty eyes of 30 patients with diagnosed POAG were analysed. Correlation of CCT with other variables was studied.Results:Mean age of study population was 43.13±7.54 years. Out of 30 patients, 19 (63.33%) were males and 11 (36.67%) were females. Mean CCT, MD, PSD, CDR and RNFL-T of study population was 528.57±25.47µm, -9.11±3.07, 6.93±2.73, 0.63±0.13 and 77.79±10.44µm respectively. There was significant correlation of CCT with MD, PSD and CDR (r=-0.52, p<0.001; r=-0.59, p<0.001;r=-0.41, p=0.001 respectively). The correlation of CCT with RNFL-T was not statistically significant (r=-0.14, p=0.284).Conclusion:Central corneal thickness had significant correlation with visual field parameters like mean deviation and pattern standard deviation, as well as with cup-to-disc ratio. However, central corneal thickness had no significant relationship with retinal nerve fibre layer thickness.
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