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The correlation between variation of visual acuity and the anterior chamber depth in the early period after phacoemulsification

Medical Journal of Chinese People's Liberation Army. 2011;36(4):344-346

 

Journal Homepage

Journal Title: Medical Journal of Chinese People's Liberation Army

ISSN: 0577-7402 (Print)

Publisher: Editorial Board of Medical Journal of Chinese People's Liberation Army

Society/Institution: Department of Health, Chinese People's Liberation Army

LCC Subject Category: Medicine: Medicine (General)

Country of publisher: China

Language of fulltext: Chinese

Full-text formats available: PDF

 

AUTHORS


Kai-jian CHEN

Jian YE

Rong-di YUAN

Xiao-fan CHEN

Zheng ZHENG

EDITORIAL INFORMATION

Peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 18 weeks

 

Abstract | Full Text

Objective To investigate the correlation between the visual acuity variation and the anterior chamber depth in the early period after phacoemulsification.Methods Thirty-six eyes of 32 patients with age-related cataract underwent 3.2mm clear corneal incision phacoemulsification and intraocular lens(IOL) implantation.The visual acuity was examined and horizontal curvature(K1),vertical curvature(K2),corneal astigmatism,and anterior chamber depth were measured with IOL-master preoperatively and also on 1,3,7 and 15 postoperative days.The changes in parameters were compared,and the correlations among visual acuity,corneal astigmatism and anterior chamber depth were analyzed.Results Before operation and 1d,3d,7d and 15d after operation,the corneal astigmatism was-0.87±0.40D,-1.92±1.38D,-1.69±1.13D,-1.45±0.79D and-1.36±0.74D;the anterior chamber depth was 3.08±0.35mm,4.04±0.38mm,4.28±0.29mm,4.22±0.17mm and 4.22±0.16mm;the visual acuity was 0.18±0.10,0.44±0.14,0.59±0.12,0.61±0.11 and 0.62±0.14.Significant difference was found between pre-operative and postoperative visual acuity,corneal astigmatism and anterior chamber depth,and it was also found in corneal astigmatism between 1d and 15d post operation(P < 0.05),as well as in anterior chamber depth and visual acuity between 1d and 3d post operation(P < 0.05).A positive correlation was found between visual acuity and corneal astigmatism on 1d(r=0.42,P < 0.05),3d(r=0.35,P < 0.05) and 7d(r=0.35,P < 0.05) post operation;and a negative correlation was found between visual acuity and anterior chamber depth on 3d(r=-0.29,P < 0.05),7d(r=-0.43,P < 0.01) and 15d(r=-0.37,P < 0.05) post operation.Conclusion Both the corneal astigmatism and the anterior chamber depth are correlated with the visual acuity variation in the early period after phacoemulsification.