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The Scientific World Journal
Volume 2013, Article ID 643764, 4 pages
http://dx.doi.org/10.1155/2013/643764
Clinical Study

Long-Term Effects of Cataract Surgery on Tear Film Parameters

1Department of Ophthalmology, Miami Veterans Affairs Medical Center, 1201 NW 16th Street, Miami, FL 33125, USA
2Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami, 900 NW 17th Street, Miami, FL 33136, USA
3Department of Epidemiology and Public Health, University of Miami, 1801 NW 9th Avenue, Miami, FL 33136, USA
4Department of Endocrinology and Geriatrics, University of Miami, 1611 Northwest 12th Avenue, Miami, FL 33136, USA

Received 1 November 2012; Accepted 10 December 2012

Academic Editors: Z. Bashshur, C. Haritoglou, T. Kubota, and F. M. Penha

Copyright © 2013 Vincent D. Venincasa et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose. To examine the differences in tear film parameters more than 3 months postsurgery in eyes with cataract surgery (surgical eyes) versus eyes without cataract surgery (nonsurgical eyes). Methods. 29 patients were seen at the Miami Veterans Affairs Medical Center (VAMC) who had cataract surgery by phacoemulsification in one eye more than 3 months prior to the study date and had no history of surgical intervention in their fellow eye. Tear film parameters were measured in both eyes and compared using McNemar tests for dichotomous variables and paired and single sample t-tests for continuous variables. Results. Mean patient age was 73 (standard deviation (SD): 11); 26 patients (90%) identified themselves as White and 7 (24%) as Hispanic. The mean number of days between surgery and this study was 952 (SD: 1109). There were no statistical differences between the surgical eye and the nonsurgical eye with respect to any of the measured tear film parameters. Confidence intervals around these differences were narrow enough to exclude a substantial effect of cataract surgery. The elapsed time between cataract surgery and measurement of the tear parameters did not appear to affect the difference in parameters between the two eyes. Conclusion. We found that eyes that had cataract surgery more than 3 months prior to testing had no differences in their tear film parameters compared to eyes without a history of surgery.