J Korean Ophthalmol Soc > Volume 49(1); 2008 > Article
Journal of the Korean Ophthalmological Society 2008;49(1):57-64.
DOI: https://doi.org/10.3341/jkos.2008.49.1.57    Published online January 31, 2008.
The Changes in Macular Thickness after Phacoemulsification in Patients with Non-diabetes and Nonproliferative Diabetic Retinopathy.
Seon Jin Wang, Si Hwan Choi
Department of Ophthalmology, Chungnam National University College of Medicine, Daejeon, Korea. shchoi@cnu.ac.kr
비당뇨병군과 비증식성 당뇨망막병증군의 초음파 유화술 전후 황반두께의 변화
왕선진ㆍ최시환
Department of Ophthalmology, Chungnam National University College of Medicine, Daejeon, Korea
Correspondence:  Seon Jin Wang, M.D.
Abstract
PURPOSE
To compare the changes in macular thickeness between non-diabetic group and a mild or moderate nonproliferative diabetic retinopathy group after phacoemulsification. METHODS: This study consisted of 32 eyes of 22 patients who underwent phacoemulsification. The non-diabetic group included 20 eyes of 15 patients; the diabetic group (mild or moderate nonproliferative diabetic retinopathy) included 12 eyes of 7 patients. Macular thickness using optical coherence tomography (OCT) and corrected visual acuity were measured before surgery and 1 day, 1 week, 1 month, 2 months, 6 months and 12 months after surgery. RESULTS: In the non-diabetic group, the macular thickness increased by 2.8+/-4.2% at 1 week, 5.9+/-4.5% at 1 month, 4.8+/-3.8% at 2 months, 0.6+/-0.8% at 6 months, and -0.3+/-1.2% at 12 months after surgery, while it increased by 4.8+/-5.0% at 1 week, 11.1+/-5.2% at one month, 9.9+/-6.0% at two months, 8.1+/-4.6% at 6 months, 3.9+/-3.5% at 12 months in the diabetic group. The increased amount of macular thickness was significantly higher in the diabetic group than in the non-diabetic group at 1 month, 2 months, 6 months, and 12 months. Visual acuity was not significantly different between the diabetic and non-diabetic groups. In the non-diabetic group, 2 months after the operation, LogMAR below 0.02 (Snellen 0.95) were remained with best corrected visual acuity. Similarly to non-diabetic patients, diabetic patients needed 12 months to reach best corrected visual acuity. CONCLUSIONS: Macular thickness increased in both diabetic and non-diabetic groups after phacoemulsification, and the increased amount of macular thickness was significantly greater and lasted longer in the diabetic group compared with the non-diabetic group. In cases of mild or moderate nonproliferative diabetic retinopathy, macular thickness change due to cataract surgery did not influence visual acuity.
Key Words: Diabetes mellitus;Macular thickness;Optical coherence tomography;Phacoemulsification;Visual acuity


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