역기하렌즈 착용 후 시력과 비구면계수의 관계

• 영문명: The Relationship Between Asphericity and Visual Acuity After Wearing Reverse-Geometry Lens
• 발행기관: 대한안과학회
• 저자명: 나정화 최정훈 양지욱 이영춘 김수영,Jung Hwa Na, MD, Jeong Hoon Choi, MD, Ji Wook Yang, MD, Young Chun Lee, MD, Su Young Kim, MD
• 간행물 정보: 『대한안과학회지』Ophthalmological Society,volume50,number5, 670~676쪽, 전체 7쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 2009.05.15

영문 초록

Purpose: To report the change of corneal asphericity and the relationship between asphericity and visual acuity after wearing the reverse-geometry lens. Methods: The authors reviewed out-patient records of 37 consecutive patients wearing reverse-geometry lenses. The patients were followed up from July 2004 to December 2007. The unaided visual acuity (VA), spherical equivalent (SE) and asphericity before and after wearing the lens were compared. The relationship of SE and final VA, initial astigmatism and final VA, and asphericity and final VA was also analyzed. In addition, the relationship between the increment of VA and asphericity was determined. Results: VA and SE improved and the asphericity decreased after wearing the lens (p＜0.05). There was high correlation between the spherical equivalent and final visual acuity (p＜0.001), and no correlation between asphericity and final visual acuity (p=0.358) was observed. However, the lower the initial asphericity, the greater the increment of visual acuity observed (p=0.048). Conclusions: Initial corneal asphericity can be a predictor of increment of VA after wearing reverse-geometry lenses.

키워드

Corneal asphericity, Corneal eccentricity, Orthokeratology, Reverse-geometric lens, Spherical equivalent