구면렌즈 C-flex™(570C)와 비구면렌즈 C-flex™(970C)의 임상적 유용성의 비교

• 영문명: Comparison of the Clinical Effects of Implantation of Aspheric and Spherical Intraocular Lenses
• 발행기관: 대한안과학회
• 저자명: 이종수 윤태진 안진환,Jong Soo Lee, MD, PhD, Tae-Jin Yoon, MD, Jin Hwan Ahn, MD
• 간행물 정보: 『대한안과학회지』Ophthalmological Society,volume50,number10, 1514~1519쪽, 전체 6쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 2009.10.15

영문 초록

Purpose: To compare postoperative visual acuity, spherical equivalent and contrast sensitivity of eyes implanted with either spherical C-flex™(570C) or aspheric C-flex™(970C) intraocular lenses (IOL). Methods: Forty eyes implanted with posterior chamber intraocular lenses were divided into two groups: C-flex™(570C) (20 eyes) and C-flex™(970C) (20 eyes). In these two groups, postoperative best corrected visual acuity (logMAR), spherical equivalent and contrast sensitivity was performed at one month and three months, postoperatively. Results: In the spherical group, the preoperative naked visual acuity was 1.25±0.46 (logMAR). The best corrected visual acuity at postoperative three months was 0.49±0.28. In the aspheric group, the preoperative naked visual acuity was 1.29±0.67. The bestcorrected visual acuity at postoperative three months was 0.39±0.30. There were statistically significant differences in best-corrected visual acuity between the preoperative and the postoperative three months results in the spherical IOL group and in the aspherical IOL group. There were no statistically significant differences in spherical equivalent between preoperative and postoperative onemonth results and between preoperative and postoperative three-month results in the spherical IOL group and the aspherical IOL group. In the aspherical IOL group, contrast sensitivity at postoperative one and three months were better in the all spatial frequency than in the preoperative scotopic condition. Conclusions: When we compared eyes implanted with the spherical C-flex™(970C) with eyes implanted with the spherical C-flex™ (570C), there were no statistically significant differences in spherical equivalent or best corrected visual acuity. The aspherical IOL group showed better contrast sensitivity than did the spherical IOL group postoperatively at both one month and three months.

키워드

Aspheric intraocular lens, Contrast sensitivity, Visual acuity