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- 저자 : .Jin Ho Jeong. MD. Mee Kum Kim. MD.. Won Ryang Wee. MD.. Jin Hak Lee. MD. (검색결과 2 건)
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백내장 수술 후 비구면 인공수정체 및 구면인공수정체 삽입안에서 광학적 기능의 비교
정진호,김미금,위원량,이진학,.Jin Ho Jeong. MD. Mee Kum Kim. MD.. Won Ryang Wee. MD.. Jin Hak Lee. MD. 대한안과학회 2010 대한안과학회지 Vol.51 No.11
Purpose: To compare optical performances in eyes implanted with aspheric and spherical intraocular lenses (IOLs) after cataract surgery. Methods: In 88 eyes of 69 patients, spherical (Sensar AR40; Acrysof natural SN60AT) or aspherical (Tecnis ZA9003; Acrysof IQ SN60WF) IOLs were implanted. After one month, contrast sensitivity, depth of focus, and spherical aberration were measured and compared between the groups. Results: Contrast sensitivities of ZA9003 and SN60WF were significantly higher in 12,18 cycles per degree (CPD) under photopic conditions and were also higher in 6,12,18 CPD under mesopic conditions compared to those of respective spherical IOLs. Depths of focus were 1.31 D in ZA9003, 1.67 D in SN60WF, 1.52 D in AR40, and 1.49 in SN60AT, and the differences were not significant. Spherical aberration (Z40) with a 4 mm pupil was -0.032 μm in ZA9003, 0.022 μm in SN60WF, 0.076 μm in AR40, and 0.072 μm in SN60AT. Spherical aberration of SN60WF was significantly lower than spherical IOLs, and that of ZA9003 had the lowest among all IOL groups. Depth of focus significantly correlated with spherical aberration. Conclusions: Aspheric IOLs were superior in mesopic contrast sensitivity and equal in depth of focus to spherical IOLs. Individual corneal spherical aberration should be considered in the choice of IOLs. J Korean Ophthalmol Soc 2010;51(11):1445-1452
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셀레나이트로 유도되는 백내장에서 선삼 성분에 따른 백내장 억제효과의 비교 분석
이상목,정문선,정진호,김미금,위원량,박정일,이진학,Sang Mok Lee,MD,Jung Moon Sun,MD,Jin Ho Jeong,MD,Mee Kum Kim,MD,Won Ryang Wee,MD,Jeong Hill Park,PhD,Jin Hak Lee,MD 대한안과학회 2010 대한안과학회지 Vol.51 No.5
Purpose: To compare the protective effects of saponin and non-saponin Sun-ginseng extract fractions in a selenite-induced rat cataract model. Methods: A total of 101 Sprague-Dawley rat pups were divided into four groups by treatment: Sun-ginseng, saponin fraction, non-saponin fraction, and control. For induction of cataracts, sodium selenite 15 nmol/g was injected subcutaneously in 13 day-old rat pups. Sun-ginseng extract 100 μg/g (Group I, Ginseng Science, Seoul, Korea), saponin fraction 100 μg/g (Group II), non-saponin fraction 100 μg/g (Group III), and phosphate buffered saline (Control group) were injected intraperitoneally every two days for a total of seven injections. The rats were sacrified and their lenses were dissected and photographed at day 7 and 14, and the cataracts were graded according to the ratio of the cataract area to the total lens area. The blind method was used for the evaluation of the cataract area. Results: At day 14, cataract formation rates (CFR) were 33.3% in group I, 76.4% in group II, 41.2% in group III, and 77.7% in the control group. The mean cataract area (MCA) was 13.4±20.8% in group I, 14.4±11.7% in group II, 5.7±7.7% in group III, and 15.8±12.1% in the control group. Group III showed statistically significant results compared with those of control group (CFR p=0.001, MCA p=0.001). We observed significantly lower incidence and smaller mean cataract area in Group I and Group III at day 7 compared with the control group (Group I, CFR p=0.018; Group III, CFR p=0.032, MCA p=0.005). Conclusions: The protective effects of Sun-ginseng extract are caused by the components in the non-saponin fraction, not by those in the saponin fraction, in a selenite-induced cataract rat model. J Korean Ophthalmol Soc 2010;51(5):733-739
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