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KMID : 0360220080490010057
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Journal of the Korean Ophthalmological Society
2008 Volume.49 No. 1 p.57 ~ p.64
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The Changes in Macular Thickness after Phacoemulsification in Patients with Non-diabetes and Nonproliferative Diabetic Retinopathy
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Wang Sun-Jin
Choi Si-Hwan
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Abstract
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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.
Conclusion : 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.
J Korean Ophthalmol Soc 49(1):57-64, 2008
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KEYWORD
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Diabetes mellitus, Macular thickness, Optical coherence tomography, Phacoemulsification, Visual acuity
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