| Multiple Logistic Regression Analysis of Factors in Refractive Outcome of Photorefractive Keratectomy(PRK). |
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Kyung Cha Park, Tae Hoon Choi, Ha Bum Lee |
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Department of Ophthalmology, Kangdong Sacred Heart Hospital, College of Medicine, Hallym University, Seoul, Korea. |
| 굴절교정 레이저각막절제술 ( PRK ) 에 영향을 주는 인자들의 다중회귀분석 |
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이하범(Ha Bum Lee),박경차(Kyung Cha Park),최태훈(Tae Hoon Choi) |
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| Abstract |
PURPOSE
The purpose of our study was to evaluate the preoperative factors associated with refractive outcome of photorefractive keratectomy. METHODS: 113 eyes of 84 patients were observed for 1 year after PRK. We examined the outcome of PRK with efficacy, predictability, and stability and analyzed data through multiple logistic regression analysis to evaluate the independent association of multiple preoperative factors with each of three principle results. RESULTS: Lesser intended correction and lesser intraocular pressure were associated with an increased likelihood of achieving 20/25 or better uncorrected visual acuity. Greater intraocular pressure and lesser corneal opacity were associated with increased predictability. Lesser intended correction was associated with an increased likelihood of stability. Preoperative factors associated with postoperative uncorrected visual acuity are amount of intended correction and intraocular pressure. Predictability is associated with intraocular pressure and degree of corneal opacity. Stability is associated with greater amount of intended correction. CONCLUSIONS: If we consider these factors, we can expect more exact outcome in patient selection, determining timing of fellow eye surgery. |
| Key Words:
Factor;PRK;Refractive outcome |
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