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A meta-analysis of studies on cosmetically tinted soft contact lenses

Authors Rah MJ, Schafer J, Zhang L, Chan O, Roy L, Barr JT

Received 16 July 2013

Accepted for publication 11 September 2013

Published 11 October 2013 Volume 2013:7 Pages 2037—2042


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 5

Marjorie J Rah,1 Jeffery Schafer,1 Lening Zhang,1 Osbert Chan,2 Lipika Roy,3 Joseph T Barr1

1Bausch & Lomb Incorporated, Rochester, NY, USA; 2Bausch & Lomb Incorporated, Asia Pacific Medical Affairs, Hong Kong; 3Bausch & Lomb Incorporated, Asia Pacific Medical Affairs, Singapore, Malaysia

Background: Concerns regarding the safety of cosmetically tinted contact lenses have been reported in the literature. The purpose of this paper is to evaluate the safety of cosmetically tinted contact lenses in a large number of patients across six clinical trials that varied from 1 week to 3 months in duration.
Methods: Lenses tested included: Naturelle limbal ring daily disposable, Lacelle limbal ring daily disposable, Lacelle colored cosmetic daily disposable, Lacelle limbal ring planned replacement at 2 weeks, and Alamode traditional/annual colored cosmetic lens. The primary safety outcome was slit-lamp examination, including epithelial edema, epithelial microcysts, corneal staining, bulbar injection, limbal injection, upper lid tarsal conjunctival abnormalities, corneal neovascularization, and corneal infiltrates. High contrast logMAR visual acuity with lenses, and lens wearing time, movement, and centration, are also presented.
Results: A total of 871 subjects (1,742 eyes) and 23 clinical investigators participated in the six studies, with an average completion rate of 96.4% across all studies. The mean age of the patients was 26.8 ± 6.6 years, and 86.7% of participants were female. The total number of slit-lamp examinations across the six studies was 2,456 visits by eye (1,228 visits by patient). There were no slit-lamp signs > grade 2 for any finding, with the exception of corneal staining in one study. In this study, grade 3 corneal staining was noted in one eye (0.1%) at follow-up visit 1 and four (0.6%) of all eligible dispensed eyes at follow-up visit 2, with no eyes requiring medical treatment. No adverse events were reported during any of the trials.
Conclusion: The cosmetically tinted lenses evaluated in this meta-analysis appear to be safe when properly prescribed by an eye care professional and used in a compliant manner.

Keywords: contact lens, hydrogel, cosmetically tinted contact lens, compliance

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