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RISS 인기검색어
- 검색키워드
- 저자 : 조명진.Sang Bumm Lee. M.D.. Ph.D.. Myung Jin Cho. M.D. (검색결과 1 건)
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눈추적장치를 이용한 고등각막표면굴절교정레이저절제술에서 수술자 지정 연마중심의 정확도
이상범,조명진.Sang Bumm Lee. M.D.. Ph.D.. Myung Jin Cho. M.D. 대한안과학회 2007 대한안과학회지 Vol.48 No.9
Purpose: To evaluate the accuracy of the surgeon-selected ablation center in active eye-tracker-assisted ASA-PRK and to identify factors influencing the ablation center. Methods: This retrospective study included 109 eyes of 62 patients who underwent active eye-tracker-assisted ASA-PRK (VISX STARTM S4 with ActiveTrakTM System). The location the surgeon-selected ablation center and its distance from the center of the entrance pupil were analyzed by corneal topography (EyeSys Corneal Analysis SystemTM with pupil finding software). The factors influencing centration were investigated. Results: The mean decentration was 0.24±0.13 mm (range 0.04 to 0.83 mm). One-hundred and five eyes (96%) were within 0.5 mm of the pupillary center. Supero-nasal displacement of the ablation center occurred most frequently in 44 eyes (40%) after ASA-PRK. The decentration amount was not dependant on factors related to the patient, the surgeon, or the surgery. There was no significant correlation between the amount of decentration and the vertical scale bar of the ActiveTrakTM icon on the screen representing the distance from the pupil center determined by the tracking system, to the surgeon-selected ablation center. Conclusions: This method of tracking the ablation center, which was selected by the surgeon according to each patient`s specific pupil decentration with the active eye tracking system, was highly accurate and effective in avoiding severe decentration in ASA-PRK.
KCI
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