| Clinical Study of Posterior Chamber Lens Implant in 1000 Eyes. |
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Dong Hyuck Suh, Moon Key Lee, Byung Il Park |
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Department of Ophthalmology, College of Medicine, Chonnam National University, Kwangju, Korea. |
| 후방인공수정체삽입술 1000 예에 대한 임상적 고찰 |
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서동혁(Dong Hyuck Suh),이문기(Moon Key Lee),박병일(Byung Il Park) |
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| Abstract |
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The authors compared and analysed planned extracapsular cataract extraction(ECCE) and Kelman phacoemulsification(KPE) on the 1000 cases out of 1546 cases which had undergone cataract operation during the period of September, 1983 through June, 1989. The results were as follows; 1. Postoperative visual acuity of 0.5 or better was achieved in 96%(960 eyes) and 1.0 or better in 67.6%(676 eyes). Average of visual acuity was similar each other: 0.92 +/- 0.24 in planned ECCE and 1.00 +/- 0.21 in KPE. 2. The mean spherical equivalent of required spectacle lens power was similar too: -1.07D +/- 1.51 in total, -1.08D +/- 1.57 in planned ECCE and -1.05D +/- 1.42 in KPE. 3. The mean postoperative astigmatism was -0.81D +/- 1.05 in total, -0.98D +/- 1.15 in planned ECCE and -0.54D +/- 0.79 in KPE. There was significant correlation between two groups(P<0.01). 4. The difference between predicted and postoperative refraction in terms of spherical equivalent was -0.36D +/- 1.12 in total, -0.36D +/- 1.12 in planned ECCE and -0.37D +/- 1.11 in KPE with no significant different value. The difference by Binkhorst formula was -0.50D +/- 1.10, and -0.06D +/- 1.09, the significant correlative value by regression SRK formula(P<0.05). 5. Mean changes of corneal refractive power was 0.43D +/- 0.99 in horizontal meridian and -0.21D +/-1.14 in vertical meridian in planned ECCE and 0.23D +/- 0.72 in horizontal meridian and 0.01D +/- 0.90 in vertical meridian in KPE. There was significant correlation between two groups(P<0.01). 6. The correlation between postoperative corneal astigmetism and actual astigmatism by skiascopy was very close: regression coefficient was 0.64087 in total, 0.62698 in planned ECCE and 0.62026 in KPE respectively(P<0.01). |
| Key Words:
astigmatism;Kelman phacoemulsification;planned extracapsular cataract extr action;refraction;spherical equivalent |
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