AL-Scan;을 이용한 술 전 안구생체계측과 백내장 수술 후 굴절력 예측의 정확성

• 영문명: Accuracy of Ocular Biometry and Postoperative Refraction in Cataract Patients with AL-Scan
• 발행기관: 대한안과학회
• 저자명: 김성인 강석재 오태훈 최진석 백남호,Sung In Kim, MD, Sug Jae Kang, MD, Tae Hoon Oh, MD, Jin Seok Choi, MD, PhD, Nam Ho Baek, MD, PhD
• 간행물 정보: 『대한안과학회지』Ophthalmological Society,volume54,number11, 1688~1693쪽, 전체 6쪽
• 주제분류: 인문학 > 역사학
• 파일형태: PDF
• 발행일자: 2013.11.15

영문 초록

Purpose: To compare the axial lengths, anterior chamber depths, and keratometric measurements and to predict postoperative refractions of AL-Scan^{®, IOL master®, and ultrasound. Methods: A total of 40 eyes in 30 patients who received cataract surgery were included in the present study. The axial length, anterior chamber depth, and keratometry were measured by 2 types of partial coherence interferometry (AL-Scan®and IOL master®) and ultrasound. The SRK/T formula was used to calculate IOL power, and the predictive error which subtracts predictive refraction from postoperative refraction was compared among the ocular biometry devices. Results: Axial lengths were 23.08 ± 0.62 mm, 23.09 ± 0.62 mm, and 22.99 ± 0.62 mm measured by AL scan®, IOL master®, and ultrasound, respectively. Axial length measured by ultrasound was statistically significantly shorter than AL scan® and IOL master® (p < 0.001, p < 0.001, respectively). The anterior chamber depth and keratometry were 3.11 ± 0.06 mm and 44.82 ± 1.34 D measured by AL scan®, and 3.13 ± 0.06 mm and 44.85 ± 1.26 D measured by IOL master®, respectively. The differences of anterior chamber depth and keratometry between the 2 devices were not statistically significant (p = 0.226, p = 0.331, respectively). The mean absolute prediction errors were 0.44 ± 0.35 D, 0.40 ± 0.34 D, and 0.39 ± 0.30 D in AL-Scan®, IOL master® and ultrasound, respectively, and were not statistically significantly different (p = 0.843, p = 0.847, p = 1.000, respectively). Conclusions: The ocular biometric measurements and prediction of postoperative refraction using AL-Scan® were as accurate as IOL master® and ultrasound. J Korean Ophthalmol Soc 2013;54(11):1688-1693}

키워드

AL-Scan Axial length, IOL master Partial coherence interferometry