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당뇨망막병증에서 패턴 범망막광응고술과 기존 범망막광응고술과의 치료 효과 비교
양지욱,이영춘,Ji-Wook Yang,Young-Chun Lee 대한안과학회 2010 대한안과학회지 Vol.51 No.12
Purpose: To compare the therapeutic effects and complications after panretinal photocoagulation (PRP) and discomforts of patients using patterned PRP versus conventional PRP for diabetic retinopathy. Methods: Eighty patients who required PRP due to diabetic retinopathy were enrolled in a prospective randomized controlled study. The patients were randomly divided into two groups: a patterned PRP group in which PRP was performed with a short laser exposure time (0.02 seconds) and a conventional PRP group with a long exposure time (0.2 seconds). At the 1-year follow-up visit, the progressions of diabetic retinopathy, best-corrected visual acuity, and central macular thickness were evaluated. All patients were questioned about the grade of pain during PRP. In addition, the complications after PRP were investigated. Results: There were no statistical differences in clinical characteristics between both groups. The progression of diabetic retinopathy was not different in both groups at the 1-year follow-up visit. The best-corrected visual acuities at 1, 2, 4, and 8 weeks after PRP were decreased in both groups and, in the conventional PRP group, the decrements of visual acuity were greater than in the patterned PRP group. The increments of central macular thickness were also greater in the conventional PRP group than the patterned PRP group. Conclusions: When patterned PRP is performed using a short laser exposure time, the efficacy in the treatment of diabetic retinopathy is similar to that of the conventional PRP using a longer laser exposure time. Moreover, patterned PRP is less painful, and fewer complications. J Korean Ophthalmol Soc 2010;51(12):1590-1597
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망막분지정맥폐쇄에서 패턴 광응고술과 기존의 광응고술과의 효과 비교
박영근,지동현,양지욱,Young-Gun Park,MD,Dong Hyun Jee,MD,Ji-Wook Yang,MD 대한안과학회 2010 대한안과학회지 Vol.51 No.10
Purpose: To compare the clinical effect and complications between patterned laser photocoagulation with short exposure time and conventional laser photocoagulation for neovascularization in branch retinal vein occlusion (BRVO). Methods: A prospective study was conducted on 36 patients (39 eyes) who required laser photocoagulation for neovascularization due to BRVO. The patients were divided into 2 groups, the patterned laser photocoagulation group (laser exposure time 0.02 sec, 3 × 3 array patterned photocoagulation) and conventional laser photocoagulation group (laser exposure time 0.2 sec). Other laser parameters (burn intensity and spot size) were the same. Pain score at the time of treatment was monitored after the laser photocoagulation. In addition, best-corrected visual acuity as well as central macular thickness measurements were performed before the treatment and after 2, 4, 8, and 12 weeks. The regression of neovascularization in fluorescein angiography was monitored during follow-up periods. Results: The patterned laser photocoagulation group had a greater reduction in pain during laser photocoagulation, and a decreased change in central macular thickness after laser photocoagulation than the conventional laser photocoagulation group. In particular, the patterned laser photocoagulation group had a statistically significant difference between the 2 groups at postoperative 8 and 12 weeks. The regression rate of neovascularization between the 2 groups had no statistically significant difference. Conclusions: Patterned laser photocoagulation with a short exposure time decreases pain and postoperative macular edema with no difference in regression of neovascularization. Patterned laser photocoagulation with a short exposure time can be considered as a useful and efficient method for neovascularization in BRVO. J Korean Ophthalmol Soc 2010;51(10):1368-1373
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짧은 노출시간을 이용한 패턴 범망막광응고술 후 발생한 섬모체맥락막박리 1예
이평,김영균,유승영,곽형우.Pyung Lee. MD. Young Gyun Kim. MD. Seung Young Yu. MD. PhD. Hyung Woo Kwak. MD. PhD 대한안과학회 2010 대한안과학회지 Vol.51 No.6
Purpose: To report the case of a patient with ciliochoroidal detachment after brief exposure to patterned scanning laser photocoagulation. Case summary: We examined a 62-year-old woman with early proliferative diabetic retinopathy and observed neovascularization and macular edema upon fundus examination. The patient underwent patterned scanning laser photocoagulation with an exposure time of 0.03 sec over the entire retina in a single pass. In vivo, the ciliary body and choroid were examined using ultrasound biomicroscopy (UBM), before, immediately after, 3 and 7 days after panretinal photocoagulation. Ciliochoroidal detachment was observed 3 days after panretinal photocoagulation and spontaneously disappeared by 7 days after photocoagulation. The change in IOP coincident with ciliochoroidal detachment were not significant. Conclusions: Ciliochoroidal detachment after panretinal photocoagulation may lead to complications such as angle-closure glaucoma. Patterned scanning laser photocoagulation with short exposure time should be practiced only with careful attention to the possible development of cilochoroidal detachment. J Korean Ophthalmol Soc 2010;51(6):908-911
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