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Year : 2018  |  Volume : 31  |  Issue : 1  |  Page : 289-292

Evaluation of macular changes after uncomplicated phacoemulsification surgery in diabetic patients using optical coherence tomography

1 Department of Ophthalmology, Faculty of Medicine, Menoufia University, Al Minufiyah, Egypt
2 Department of Ophthalmology, Faculty of Medicine, Cairo University, Cairo, Egypt

Correspondence Address:
Maged F Laymouna
Department of Ophthalmology, Faculty of Medicine, Cairo University, Cairo
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/mmj.mmj_665_16

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Objective The aim of this study was to evaluatethe subclinical influence of uncomplicated cataract surgery on foveal thickness and volume in the early postoperative period in diabetic and nondiabetic patients. Background Diabetic patients pose a particular challenge because of the tendency for early formation of cataract in them and propensity to develop macular edema after cataract surgery. Patients and methods A prospective nonrandomized study was carried out on 50 eyes of 43patients, which were divided into two groups. Group1 included 25 eyes of diabetic patients and group2 included 25 eyes of nondiabetic patients. Optical coherence tomography was performed to measure initial and 1-month postoperative mean foveal thickness(MFT). Exclusion criteria were as follows: dense cataract that did not permit the measurement of the central macular thickness, proliferative diabetic retinopathy(DR), chronic uveitis, and any posterior segment pathologies other than nonproliferative DR. Results MFT increased significantly in both groups. In group1 it increased initially from 254.88±32.53 to 310.52±64.74 at 1month postoperatively(P=0.001). In group2 it increased initially from 228.28±18.65 to 269.16±23.59 at 1month postoperatively(P=0.001). There was no difference in initial logarithm of minimal angle of resolution visual acuity between the two groups: in group1 it was 0.80±0.05andin group2 it was 0.80±0.06(P=0.801). Postoperative logarithm of minimal angle of resolution visual acuity was significantly different: in group1 it was 0.43±0.23 and in group2 it was 0.25±0.11(P=0.001). Conclusion Increase in MFT occurred after uncomplicated phacoemulsification in diabetic and nondiabetic eyes; the range of increased MFT was more in diabetic patients with higher initial MFT or higher grade of DR preoperatively.

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