굴절교정수술후 인공수정체도수계산을 위한 새로운 각막곡률치 측정방법

• 영문명: A New Method for Measuring Corneal Refractive Power after Refractive Surgery
• 발행기관: 대한안과학회
• 저자명: 강재훈 박종일 이경헌,Jae-Hoon Kang, M.D., Jong-Il Park, M.D., Kyung-Hun Lee, M.D.
• 간행물 정보: 『대한안과학회지』Ophthalmological Society,volume46,number5, 859~864쪽, 전체 6쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 2005.05.31

영문 초록

Purpose: To report a new method for measuring corneal refractive power after photorefractive keratectomy (PRK) and laser in situ keratomileusis (LASIK) using the Orbscan? and autorefractokeratometer. Methods: This study involved 12 cases that had undergone cataract surgery after corneal refractive surgery. Five cases had PRK and seven had LASIK. Keratometric values were evaluated with three different methods. The first, defined as RK, used an autorefractokeratometer (AK) (n=1.3375). The second, defined as K1, added the posterior surface diopter using AK and anterior surface diopter using an Orbscan. The last, defined as K2, added the posterior surface diopter and the anterior surface diopter using an Orbscan. Low K was a lower value between K1 and K2. RK, K1, K2 and Low K were compared with the back-calculated K value (Real K) 2 months after cataract surgery. Results: The mean differences between RK, K1, K2, Low K and Real K were 3.08±0.98D, 0.41±0.66D, 0.27±0.77D, and -0.02±0.53D, respectively. In 9 of the 12 patients the difference was within 1D (75%) when either K1 or K2 was selected and in all patients, the difference between Low K and Real K was within 1D. Conclusions: The method of IOL calculation using Low K showed more accurate and predictable results in patients who had had cataract surgery after corneal refractive surgery.

키워드

Corneal refractive power, IOL calculation, Orbscan?