익상편 절제술 후 익상편의 크기 지표에 따른 평균 각막 굴절력 변화량 예측

• 영문명: The Prediction of Changes in Mean Corneal Refractive Power by Pterygium Size after Pterygium Surgery
• 발행기관: 대한안과학회
• 저자명: 남기태 엄영섭 임재원 강수연 김효명 송종석,Ki Tae Nam, MD, Young Sub Eom, MD, Jay Won Rhim, MD, Su Yeon Kang, MD, Hyo Myung Kim, MD, PhD,Jong Suk Song, MD, PhD
• 간행물 정보: 『대한안과학회지』Ophthalmological Society,volume55,number11, 1613~1617쪽, 전체 5쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 2014.11.15

영문 초록

Purpose: To assess the changes in mean corneal refractive power (ΔK) following pterygium surgery and to predict ΔK in cases of combined cataract and pterygium surgery. Methods: Thirty-seven eyes of unilateral pterygium patients who underwent pterygium surgery were analyzed retrospectively with at least more than 1 month of follow-up. Preoperative and postoperative 1 month corneal refractive power was measured using auto-keratometer (RK-F1, Canon, Tokyo, Japan). Pterygium horizontal extension, width, and area were measured and correlation with ΔK before and after surgery analyzed. We also compared ΔK of the contralateral normal eye. Results: The mean corneal refractive (Km) power measured before and 1 month after surgery was 43.30 ± 1.66 D and 44.07 ± 1.42 D, respectively. The Km significantly increased at 4 weeks after surgery (p < 0.001). However, postoperative Km was not significantly different when compared with the contralateral normal eye (43.86 ± 1.34 D; p = 0.59). All parameters of pterygium size including horizontal extension, width, and area were positively correlated with the mean ΔK. Among parameters, horizontal extension was best correlated with mean ΔK (p < 0.001). The mean ΔK with horizontal extension was predicted using linear regression (2.5 mm to 1 D, 4.0 mm to 1.8 D). Conclusions: We recommend contralateral corneal refractive power or prediction of corneal refractive power using linear regression with pterygium horizontal extension for determining intraocular lens power in cases of combined cataract and pterygium surgery. J Korean Ophthalmol Soc 2014;55(11):1613-1617

키워드

Intraocular lens power calculation, Mean corneal power, Pterygium