Central Macular Thickness in Diabetic Retinopathy- A Comparative Study


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Volume :

3

Issue :

2

Abstract :

Background: Macular oedema is one of the important signs in patients with diabetic retinopathy which progresses to complete blindness. Therefore, early diagnosis of the disease can prevent the progression of disease. Methods: This comparative study was conducted on 200 eyes of 100 diabetics and non-diabetics each. Subjects were divided into five groups according to the International Clinical Diabetic Retinopathy Disease Severity Scale. In each stage, macula was assessed for the presence or absence of Clinically Significant Macular Oedema (CSME) by using Optical Coherence Tomography (OCT) method. Results: The maximum percent of patients are present in the age group of 50-60 years. The maximum and minimum percent of patients in both the genders are diagnosed in the stage 3 and stage 4 retinopathy respectively. The mean Central Macular Thickness (CMT) in the study group was 291.0±63.0 microns and the mean CMT in the control group was 216.5±11.7 microns. Central macular thickness was seen to increase progressively with increasing stages of diabetic retinopathy. A statistically significant difference in mean CMT of controls when compared with each of the diabetic subgroups independently was observed. Conclusion: Macular thickening increased with increasing stages of diabetic retinopathy without evidence of any clinically significant macular oedema. It can be used as a good indicator to monitor such diabetic individuals.

Keyword :

Central macular thickness, Diabetes, Retinopathy.
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