| Clinical Outcome of PRK with the Use of a Rotary Brush, Corneal Chilling, and Bandage Contact Lens. |
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Sang Bumm Lee, Min Sagong |
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Department of Ophthalmology, Yeungnam University College of Medicine, Daegu, Korea. sbummlee@med.yu.ac.kr |
| 상피제거회전솔, 차가운 평형염액 세척 및 안대렌즈의 이용에 의한 PRK의 성적 |
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이상범 ( Lee Sang Beom ) , 사공민 ( Sa Gong Min ) |
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| Abstract |
PURPOSE
To evaluate the effect of rotary epithelial scrubber, cold BSS(R) irrigation, and bandage contact lens on the clinical outcome of excimer laser PRK. METHODS: This updated PRK was performed in 90 eyes (Group I: -4.54 +/- 0.91 D). Conventional PRK with mechanical epithelial removal using Beaver(R) blade and patch dressing was performed in 181 eyes (Group II: -4.30 +/- 0.97 D). Clinical outcome was compared between group I and group II retrospectively. RESULTS: Mean epithelial removal time was significantly shorter in group I (6.6 +/- 0.9 sec) than in group II (33.2 +/- 11.2 sec) (p<0.05). Mean epithelial healing time showed more rapid epithelial healing in group I (2.0 +/- 0.3 days) than in group II (3.0 +/- 1.0 days) (p<0.05). At 1 week and 24 months, UCVA of 0.7 or better was achieved in 91.1%, 97.8% in group I and in 71.8%, 88.2% in group II (p<0.05). At 6 and 24 months, spherical equivalent within 0.5 D of emmetropia was in 91.1%, 91.3% in group I and in 80.7%, 56.9% in group II (p<0.05). After 1 year follow-up, no eye in group I showed either corneal haze worse than grade 1 or loss of 2 or more lines of BSCVA. CONCLUSIONS: Updated PRK provided more rapid epithelialization than conventional PRK. And there was significant improvement in clinical outcome and safety in group I compared with group II. We suggested that updated PRK should be used for the correction of mild to moderate myopia. |
| Key Words:
Bandage contact lens;Cold BSS(R) Irrigation;Excimer laser PRK;Rotary epithelial scrubber |
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