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Artigo Produção Nacional Revisado por pares
BIBTEX RIS

Effects of blue light–filtering intraocular lenses on the macula, contrast sensitivity, and color vision after a long-term follow-up

2011; Lippincott Williams & Wilkins; Volume: 37; Issue: 12 Linguagem: Inglês

10.1016/j.jcrs.2011.06.024

ISSN

1873-4502

Autores

Newton Kara-Júnior, Rodrigo França de Espíndola, Beatriz A.F. Gomes, Bruna V. Ventura, David Smadja, Marcony R. Santhiago,

Tópico(s)

Corneal surgery and disorders

Resumo

PURPOSE: To evaluate the possible side effects and potential protection 5 years after implantation of an intraocular lens (IOL) with a blue-light filter (yellow tinted). SETTING: Ophthalmology Department, University of São Paulo, São Paulo, Brazil. DESIGN: Prospective randomized clinical study. METHODS: Patients with bilateral visually significant cataract randomly received an ultraviolet (UV) and blue light–filtering IOL (Acrysof Natural SN60AT) in 1 eye and an acrylic UV light–filtering only IOL (Acrysof SA60AT) in the fellow eye. The primary outcome measures were contrast sensitivity, color vision, and macular findings 5 years after surgery. RESULTS: The study enrolled 60 eyes of 30 patients. There were no significant clinical or optical coherence tomography findings in terms of age-related macular degeneration in any eye. There were no statistically significant differences in central macular thickness between the 2 IOL groups (P=.712). There were also no significant between-group differences under photopic or scotopic conditions at any spatial frequency studied. No statistically significant differences in the color discrimination test were found between the 2 IOL groups (P=.674). CONCLUSIONS: After 5 years, there were no significant differences in color perception, scotopic contrast sensitivity, or photopic contrast sensitivity between the blue light–filtering (yellow-tinted) IOL and the IOL with a UV-light filter only (untinted). The potential advantage of the tinted IOL in providing protection to macular cells remains unclear. Financial Disclosure: No author has a financial or proprietary interest in any material or method mentioned.

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