Rating of tinted ophthalmic lenses

Francoise Vienot; Fatima Benhalima; Hans Brettel; Bernard Bourdoncle; Alain Colonna de Lega

doi:10.1117/12.464647

6 June 2002 Rating of tinted ophthalmic lenses

Francoise Vienot, Fatima Benhalima, Hans Brettel, Bernard Bourdoncle, Alain Colonna de Lega

Proceedings Volume 4421, 9th Congress of the International Colour Association; (2002) https://doi.org/10.1117/12.464647
Event: 9th Congress of the International Color Association, 2001, Rochester, NY, United States

Abstract

This study aims at establishing the relationship between the spectral transmission characteristics of tinted ophthalmic lenses and the visual percept of the observer looking through. We hypothesize that the rating of tinted lenses originates from what the observer sees rather than what the glass looks like. We develop a model for color acceptance by calculating the color distortions for a collection of colored surfaces that are representative of the real environment using the spectral reflectance of the surfaces and the spectral transmittance of the lens. Then we apply the model to a collection of real tinted ophthalmic lenses and derive statistical indices that describes the global color distortion induced by each lens. Preliminary results show a significant agreement between the subjective rating and the objective color distortion index. We conclude that our model allows to predict the acceptance/rejection judgement of observers for a tinted ophthalmic lens of known spectral transmittance.

Citation Download Citation

Francoise Vienot, Fatima Benhalima, Hans Brettel, Bernard Bourdoncle, and Alain Colonna de Lega "Rating of tinted ophthalmic lenses", Proc. SPIE 4421, 9th Congress of the International Colour Association, (6 June 2002); https://doi.org/10.1117/12.464647

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