EFFECT OF INTRAOCULAR-LENS DESIGN ON POSTERIOR CAPSULE OPACIFICATION AFTER CONTINUOUS CURVILINEAR CAPSULORHEXIS

被引:55
作者
YAMADA, K
NAGAMOTO, T
YOZAWA, H
KATO, K
KUROSAKA, D
MIYAJIMA, HB
KIMURA, C
机构
[1] Department of Ophthalmology, Keio University School of Medicine, Tokyo
关键词
BICONVEX LENS; CONTINUOUS CURVILINEAR CAPSULORHEXIS; CONVEXPLANO LENS; EXTRACAPSULAR CATARACT EXTRACTION; POSTERIOR CAPSULE OPACIFICATION;
D O I
10.1016/S0886-3350(13)80569-X
中图分类号
R77 [眼科学];
学科分类号
100212 ;
摘要
We compared the effect of biconvex and convex-piano (posterior piano) intraocular lenses on posterior capsule opacification (PCO) following continuous curvilinear capsulorhexis (CCC) in 212 eyes. During the three years following surgery, the cumulative frequency of neodymium:YAG laser posterior capsulotomy, calculated with the Kaplan-Meier method, was significantly higher in patients in the biconvex group (32.5% by the third year) than in those in the convex-piano group (5.9% by the third year) (P < .05, Wilcoxon's test; P < .01, Cox-Mantel's test). Measured with the tracing method, the area within a 5 mm diameter central circle that developed Elschnig pearls was 2.93 +/- 4.91 mm(2) in the biconvex group and 1.66 +/- 2.37 mm(2) in the convex-piano group. In the study, PCO was less severe in the convex-piano group than in the biconvex group following CCC. These results are contrary to those reported previously in patients with can-opener capsulotomy.
引用
收藏
页码:697 / 700
页数:4
相关论文
共 18 条
[1]  
Santos BA, DelMonte MA, Pastora R, O'Donnell FE, Comparative study of the effects of optic design on lens epithelium in vitro, J Cataract Refract Surg, 13, pp. 127-130, (1987)
[2]  
Sterling S, Wood TO, Effect of intraocular lens convexity on posterior capsule opacification, J Cataract Refract Surg, 12, pp. 655-657, (1986)
[3]  
Born CP, Ryan DK, Effect of intraocular lens optic design on posterior capsular opacification, J Cataract Refract Surg, 16, pp. 188-192, (1990)
[4]  
Sellman TR, Lindstrom RL, Effect of a plano-convex posterior chamber lens on capsular opacification from Elschnig pearl formation, J Cataract Refract Surg, 14, pp. 68-72, (1988)
[5]  
Davis PL, Hill P, Inhibition of capsule opacification by convex surface posterior three-piece all-PMMA C-loop lenses: a fellow eye and same lens study, Eur J Implant Refract Surg, 1, pp. 237-240, (1989)
[6]  
Hansen SO, Solomon KD, McKnight GT, Et al., Posterior capsular opacification and intraocular lens decentration. Part I: comparison of various posterior chamber lens designs implanted in the rabbit model, J Cataract Refract Surg, 14, pp. 605-613, (1988)
[7]  
Shimizu K, Double-hook extraction, Jpn J Clin Ophthalmol, 43, pp. 69-71, (1989)
[8]  
Nagamoto T, Hagai M, Okushima N, Et al., Quantitative analysis of after-cataracts: area measurement using the tracing technique, J Eye (Atarashii Ganka), 9, pp. 1588-1592, (1992)
[9]  
Nishi O, Incidence of posterior capsule opacification in eyes with and without posterior chamber intraocular lenses, J Cataract Refract Surg, 12, pp. 519-522, (1986)
[10]  
Frezzotti R, Caporossi A, Pathogenesis of posterior capsular opacification. Part I: epidemiological and clinico-statistical data, J Cataract Refract Surg, 16, pp. 347-352, (1990)