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Proceedings Paper

The optimum sunglass filter?
Author(s): Per G. Soederberg; Ralph Michael; Marcelo Ayala; Jiangmei Wu; Stefan Loefgren; John Merriam; Enping Chen
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Paper Abstract

It is concluded that sunglasses shall block UVR and toxic blue light, allow transmittance of signal light and bring luminous intensity behind the filters to a comfortable level. It was found that some commercially available sunglasses, apart from one pair of photochromatic dark state lenses tested, block ultraviolet radiation (UVR) adequately. Further, it was found that it is possible to block the toxic blue radiation without interfering substantially on blue signal light perception. However, none of the sunglasses tested blocked the toxic blue light enough.

Paper Details

Date Published: 18 June 1999
PDF: 3 pages
Proc. SPIE 3591, Ophthalmic Technologies IX, (18 June 1999); doi: 10.1117/12.350616
Show Author Affiliations
Per G. Soederberg, St. Eriks Eye Hospital/Karolinska Institute (Sweden)
Ralph Michael, St. Eriks Eye Hospital/Karolinska Institute (Netherlands)
Marcelo Ayala, St. Eriks Eye Hospital/Karolinska Institute (Sweden)
Jiangmei Wu, St. Eriks Eye Hospital/Karolinska Institute (Sweden)
Stefan Loefgren, St. Eriks Eye Hospital/Karolinska Institute (Sweden)
John Merriam, St. Eriks Eye Hospital/Karolinska Institute and Columbia Univ. (Sweden)
Enping Chen, St. Eriks Eye Hospital/Karolinska Institute (Sweden)


Published in SPIE Proceedings Vol. 3591:
Ophthalmic Technologies IX
Bruce E. Stuck; Pascal O. Rol; Michael Belkin; Karen Margaret Joos; Fabrice Manns; Bruce E. Stuck; Michael Belkin, Editor(s)

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