Double-pass 영상기법을 이용한 객관적인 백내장 정도 평가

• 영문명: An Objective Cataract Grading Method using Double-pass Imaging Technique
• 발행기관: 대한검안학회
• 저자명: 이은정(Eun Jung Lee) 임동희(Dong Hui Lim) 현주(Joo Hyun) 정태영(Tae-Young Chung)
• 간행물 정보: 『Annals of optometry and contact lens』Vol.15 No.1, 1~7쪽, 전체 7쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 2016.03.30

영문 초록

Purpose: To evaluate objective cataract grading with double-pass image technique. Methods: Cataract grading was performed with lens opacities classification system III and HD analyzer, and quality of vision questionnaire was conducted. Patients were divided by preoperative best-corrected visual acuity into two groups; those with visual acuity less than 20/30 to group A, and those with visual acuity better than 20/30 to group B. The correlation of HD Analyzer parameters including objective scatter index (OSI) and preoperative visual acuity was investigated. Results: Among a total of 50 eyes of 37 patients, group B consisted of 20 eyes (40%) of 10 patients. OSI score was 5.8 ± 2.8 (1.9-10.6), and cases with score over 5 consisted 68%, and 52% among group B. OSI showed significant positive relationship to preoperative best-corrected visual acuity (p=0.012), but cases with good visual acuity and relatively high OSI score resulted in weaker relationship between OSI and visual acuity. OSI score was related to focus item in questionnaire. Conclusions: Cataract surgery decision based on best-corrected visual acuity can overlook the discomfort of patients with good visual acuity and subjectively decreased quality of vision. OSI measurement via HD Analyzer could be expected to act as an objective method to evaluate cataract grade and help in deciding early surgery, especially in patients with good visual acuity and subjective discomfort.

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키워드

Cataract Double-pass image HD analyzer Objective scatter index