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Clear ultraviolet blocking lenses for use by PUVA patients
1West of Scotland Health Boards, Department of Clinical Physics and Bio-Engineering, Glasgow, U,K.
The British Journal of Dermatology
|December 1, 1990
Summary
Patients undergoing photochemotherapy (PUVA) require UV-blocking eyewear. This study identified several suitable non-tinted or lightly tinted lenses that do not impair vision or cosmetic acceptability for PUVA patients.
Area of Science:
- Ophthalmology
- Dermatology
- Photobiology
Background:
- Photochemotherapy (PUVA) necessitates UV-blocking eyewear post-psoralen ingestion.
- Standard tinted sunglasses pose challenges: impaired color perception, reduced visual definition in low light, and cosmetic concerns.
Purpose of the Study:
- To assess the UV-blocking efficacy of various spectacle lenses with minimal or no tint.
- To identify suitable eyewear alternatives for PUVA patients experiencing difficulties with traditional tinted lenses.
Main Methods:
- Evaluation of UV-blocking properties of selected spectacle lenses and coatings.
- Testing included lenses with little or no visible tint.
Main Results:
- Several lens types demonstrated effective UV-blocking capabilities.
- Specifically, Orcolite UV 400, Orma UVX, Rodenstock Lambda 400, Sola UV Gard 400, and Polaroid polarizing lenses were found suitable.
- These lenses offer UV protection without significant visual or cosmetic drawbacks.
Conclusions:
- Non-tinted or lightly tinted UV-blocking lenses are viable alternatives for PUVA patients.
- These alternatives address the limitations associated with conventional tinted sunglasses.
- Improved patient compliance and visual comfort are anticipated with these lens options.