라식 후 임상병력법과 각막지형도상의 각막굴절력 비교

• 영문명: Comparison of Refraction-Derived Keratometric Value and Orbscan Corneal Power after Laser in Situ Keratomileusis
• 발행기관: 대한안과학회
• 저자명: 조희준 구오섭,Hee-Jun Cho, M.D., O-Sub Koo, M.D.
• 간행물 정보: 『대한안과학회지』Ophthalmological Society,volume46,number4, 623~628쪽, 전체 6쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 2005.04.30

영문 초록

Purpose: To determine the Orbscan corneal power which gave the best correlation with refraction-derived keratometric value (clinical history method) after LASIK in cataract surgery. Methods: A total of 38 consecutive eyes of 19 patients who were followed up for at least 1 year after LASIK were included in study. The refraction-derived keratometric values were correlated with Orbscan corneal power within 1, 2, 3, 4, and 5 mm diameter zones of keratometric, anterior and total selections of mean, axial, tangential and optical power maps. Results: The Orbscan corneal power of the 5-mm zone optical power total map gave the best correlation with refraction-derived keratometric value. The following regular relationship in linear regression analysis was derived: RDKV(refraction-derived keratometric value)=0.9×OPT5(corneal power of Orbscan optical power total map 5-mm zone)+4.941(r=0.883). Conclusions: These results indicate that the corneal power of the 5-mm zone optical power total map was the most appropriate to calculate IOL power in cataract surgery after LASIK when using Orbscan topography.

키워드

IOL power calculation, LASIK, Orbscan