Journal List > J Korean Ophthalmol Soc > v.51(3) > 1008751

J Korean Ophthalmol Soc. 2010 Mar;51(3):340-346. Korean.
Published online March 22, 2010.
Copyright © 2010 The Korean Ophthalmological Society
Analysis of Postoperative Macular Edema in Cataract Patients with Diabetes using Optical Coherence Tomography
Jun Yong Kim, MD, Min Hye Song, MD and Sung Kun Chung, MD, PhD
Department of Ophthalmology and Visual Science, The Catholic University of Korea College of Medicine, Seoul, Korea.

Address reprint requests to Sung Kun Chung, MD, PhD. Department of Ophthalmology, St. Mary's Hospital, The Catholic University of Korea, #62 Yeouido-dong, Yeongdeungpo-gu, Seoul 150-713, Korea. Tel: 82-2-3779-1848, Fax: 82-2-761-6869, Email:
Received April 21, 2009; Accepted December 22, 2009.



To evaluate the incidence and progression of macular edema (ME) and associated risk factors in diabetic patients.


In a prospective study, 66 eyes were assessed by optical coherence tomography (OCT) and best-corrected visual acuity was checked before operation at one and three months after operation. ME was defined as an increase of central macular thickness (CMT) by 30% or more after surgery than before operation, as measured by OCT.


The incidence of ME in diabetic patients was 8.8%. The increment of CMT at three months after cataract surgery was statistically significant in the patients of diabetic duration≥10 years (p=0.049). But insulin treatment, the severity of diabetic retinopathy, diabetic nephropathy and hemoglobin A1C were not significant risk factors for ME.


The OCT might be useful to assess the ME after cataract surgery in diabetic patients. In the patients who had long been suffered from diabetes, the incidence of ME could be higher, so cataract surgery should be carefully considered.

Keywords: Cataract surgery; Diabetes; Macular edema; Optical Coherence Tomography


Figure 1
Mean central macular thickness of study eyes at 1 and 3 months preoperatively after cataract surgery.
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Figure 2
Representative range of cystoids abnormalities of study eyes with macular edema. (A) Preoperative optical coherence tomography (OCT). (B) Post-operative 1 month OCT. (C) Post-operative 3 months OCT.
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Table 1
Characteristics of patients with diabetes received cataract operation
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Table 2
Clinical characteristics of patients with postoperative macular edema
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Table 3
Increased central macular thickness after cataract operation
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Table 4
Changes of best corrected visual acuity
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