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Year : 2015  |  Volume : 10  |  Issue : 4  |  Page : 441-444

Do UV-blocking soft contact lenses meet ANSI Z80.20 criteria for UV transmittance?

School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran

Correspondence Address:
Saeed Rahmani
Department of Optometry, Faculty of Rehabilitation Sciences, Shahid Beheshti University of Medical Sciences, Opposite to Bou-Ali Hospital, Damavand Avenue, Tehran 16169 13111
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2008-322X.176890

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Purpose: To compare ultraviolet (UV) ray transmission in four UV-blocking soft contact lenses with Z80.20 standards set by the American National Standards Institute (ANSI). Methods: Four soft contact lenses including Acuvue Oasys (Johnson & Johnson, Ireland), Acuvue 2 (Johnson & Johnson, Ireland), Zeiss CONTACT Day 30 (Zeiss, Germany), and Sauflon 55 UV (Sauflon, UK) were evaluated for UV transmission. One-way ANOVA testing was performed to compare mean values of UVA and UVB transmission for the contact lenses. Results: Acuvue Oasys, Acuvue 2, Zeiss CONTACT Day 30 and Sauflon 55 UV showed UV-B transmittance values of 0.24%, 1.46%, 10.37%, and 2.52%, respectively. Corresponding values for UV-A transmittance were 20.81%, 33.49%, 44.03% and 42.53%, respectively. One-way ANOVA showed a statistically significant difference among the tested contact lenses in terms of UV-B (P < 0.001) and UV-A (P < 0.001) transmission. Conclusion: Acuvue Oasys met the ANSI criteria for UV transmission and may thus be a good choice for eye and vision care specialists and contact lens wearers seeking UV protection.

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