Evaluation of Accommodating Potency of the Accommodative Intraocular Lens by Change of Anterior Chamber Depth.
- Author:
Hyun Wook RYU
1
;
Sung Kun CHUNG
Author Information
1. Department of Ophthalmology, St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea. eyedoc@catholic.ac.kr
- Publication Type:Original Article
- Keywords:
Accommodation;
Anterior chamber depth;
Orbscan(R);
1CU(R)
- MeSH:
Anterior Chamber*;
Humans;
Lenses, Intraocular*;
Muscle Contraction;
Ophthalmic Solutions;
Phacoemulsification;
Pilocarpine;
Prospective Studies;
Visual Acuity
- From:Journal of the Korean Ophthalmological Society
2006;47(5):748-754
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To investigate the accommodating potency of the 1CU accommodative posterior chamber intraocular lens (PC IOL), according to pilocarpine-induced ciliary muscle contraction, near visual acuity, and distance-corrected near visual acuity after implantation of the IOL. METHODS: In a prospective study, 9 eyes of 7 patients (mean age 48+/-14.9 years [range 23 to 71 years]) had phacoemulsification and PC IOL (1CU(R), Humanoptics). Distance refraction, distance visual acuity (VA), distance-corrected VA (DCVA), near visual acuity (NVA), and distance-corrected near visual acuity (DCNVA) were determined at 2 week, 1, 2, 6, and 12 months after surgery. Anterior chamber depth (ACD) was measured 3 times with the Orbscan(R) (Orbtek, U.S.A.), and averaged. Then ACD was repeatedly measured within 90 minutes after administration of pilocarpine 2% eyedrops 3 times at 10 minutes interval. RESULTS At 2 weeks, 1, 2, 6 and 12 months after surgery, the mean DCNVA was 0.55+/-0.23, 0.37+/-0.14, 0.40+/-0.22, 0.51+/-0.20, and 0.56+/-0.20, respectively. The mean ACD decrease (mm) was 0.57+/-0.77, 0.91+/-0.69, 0.17+/-0.45, 0.35+/-0.40 and 0.59+/-0.31, respectively, using Orbscan(R) after pilocarpine 2% eyedrops. There was statistically significant correlation between the pilocarpine-induced IOL movement and DCNVA (r=0.439, P=0.012). CONCLUSIONS: 1CU accommodative PC IOL provided relatively good DCNVA and accommodating potency for up to 1 year. It is necessary to investigate accommodative change for a longer time period.
