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pp.173-182
목적: 백내장환자를 대상으로 비구면 단초점 인공수정체 삽입 후 시력과 시기능 변화를 분석하였다. 방법: 단안 또는 양안에 HOYA PC-60AD 비구면 단초점 인공수정체를 삽입한 백내장 환자 25명의 30안을 대상으로 수술 전, 수술 후 1일, 1주일, 1개월 및 3개월 후에 원거리 시력과 객관적인 시기능을 평가하고, 수술 3개월 후 인공수정체 삽입안의 시기능을 40대 이상의 정상안 18명(36안)과 비교하였다. 객관적인 시기능은 원거리 시력과 OQAS 장비를 이용하여 4 mm 동공크기에서 측정된 객관적 산란지수(objective scatter index, OSI), 변조전달함수(modulation transfer function, MTF) 및 Strehl ratio를 측정하여 평가하였다. 통계분석은 SPSS ver. 18.0로 대응표본 T 검정과 선형 회귀분석을 이용하여 비교하였고 유의수준은 p
Purpose: To evaluate the visual acuity and optical performance after implantation of a aspheric monofocal intraocular lens (IOL) in the cataract patients. Methods: Thirty eyes of 25 cataract patient who underwent implantation of a monofocal aspheric IOL (HOYA PC-60AD) either unilaterally or bilaterally were included. Distance visual acuity and objective visual performance were evaluated preoperatively, 1 day, 1 week, 1 month and 3 months postoperatively. At 3 month of postoperation, objective visual performance were compared with the 36 eyes of 18 normal control over 40s. Objective evaluation of optical visual quality, objective scatter index (OSI), modulation transfer function (MTF) and Strehl ratio, was performed by using Optical Quality Analysis System (OQAS) with a 4 mm pupil diameter. Statistical analysis was performed with the SPSS/win programs(version 18.0; SPSS, Inc.). Differences were considered statistically significant when the P vale was less than 0.05. Results: The corrected distance visual acuity (CDVA) was 0.37±0.19 logMAR preoperatively and 0.11±0.09 logMAR, 0.09±0.09 logMAR at 1 week and 1 month of postoperation respectively that CDVA was significantly improved (p
