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KMID : 0360220120530101472
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Journal of the Korean Ophthalmological Society
2012 Volume.53 No. 10 p.1472 ~ p.1479
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The Changes in Central Macular Thickness after Cataract Surgery in Patients with Diabetic Retinopathy
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An Tae-Su
Park In-Won
Kwon Soon-Il
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Abstract
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Purpose:To evaluate the changes in central macular thickness (CMT) and incidence of macular edema (ME) after cataract surgery in diabetic patients compared with non-diabetic patients using optical coherence tomography (OCT).
Methods: The records of 138 diabetic patients and 34 non-diabetic patients who underwent cataract surgery were retrospectively reviewed. The diabetic group was divided into 5 groups according to severity of diabetic retinopathy. The diabetic group was also divided into 2 groups depending on prior panretinal photocoagulation history. The changes in CMT were examined using OCT before cataract surgery and 1 week, 1-, 2- and 6-months after surgery in diabetic and non-diabetic patients.
Results: The incidence of ME in the diabetic group and non-diabetic group was 19.6% and 2.9% respectively. The increased amount of CMT (ΔCMT) was significantly greater in the diabetic group compared with the non-diabetic group during the observation period (p < 0.05). The ΔCMT of eyes without a history of panretinal photocoagulation was statistically greater compared to the eyes with a history of panretinal photocoagulation at 1-, 2- and 6-months after cataract surgery (p = 0.005, 0.002, 0.008, respectively).
Conclusions: The ΔCMT and incidence of ME were significantly greater in the diabetic group compared with the non-diabetic group. Additionally, the incidence of ME was significantly greater depending on severity of diabetic retinopathy in the diabetic group.
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KEYWORD
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Cataract surgery, Central macular thickness, Diabetic retinopathy, Macular edema, Panretinal photocoagulation
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