Variations of the optical properties of two types of contact lenses with dehydration

A. M. Ionescu; S. López; J. C. Cardona; A. Talaveron; J. Ruiz-López; A. B. Rodríguez-Águila; M. M. Perez; R. Ghinea

doi:10.1117/12.2527423

3 October 2019 Variations of the optical properties of two types of contact lenses with dehydration

A. M. Ionescu, S. López, J. C. Cardona, A. Talaveron, J. Ruiz-López, A. B. Rodríguez-Águila, M. M. Perez, R. Ghinea

Proceedings Volume 11207, Fourth International Conference on Applications of Optics and Photonics; 112071Q (2019) https://doi.org/10.1117/12.2527423
Event: IV International Conference on Applications of Optics and Photonics (AOP 2019), 2019, Lisbon, Portugal

Abstract

The aim of this study is to analyse the effect of dehydration of two contact lenses – LC - (daily replacement hydrogel - Hioxifilcon A and monthly replacement silicone-hydrogel - Asmofilcon A) on their optical properties (transmittance, absorption and dispersion). Significant differences were found between dehydration levels of Hioxifilcon A and Asmofilcon A contact lenses. Conventional hydrogel lenses dehydrate quickly, which leads to a greater alteration of their optical properties. For both materials, with dehydration reflectance increases due to scattering within the material and transmittance decreases due to increased absorption. These changes are more noticeable for daily LCs of conventional hydrogel.

Citation Download Citation

A. M. Ionescu, S. López, J. C. Cardona, A. Talaveron, J. Ruiz-López, A. B. Rodríguez-Águila, M. M. Perez, and R. Ghinea "Variations of the optical properties of two types of contact lenses with dehydration", Proc. SPIE 11207, Fourth International Conference on Applications of Optics and Photonics, 112071Q (3 October 2019); https://doi.org/10.1117/12.2527423

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