Effects of yellow, orange and red filter glasses on the thresholds of a dark‐adapted human eye

Aarnisalo, Eero; Pehkonen, Pasi Tapio

doi:10.1111/j.1755-3768.1990.tb01899.x

Cited by 6 publications

(1 citation statement)

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“…It seems fairly obvious that colored filters will enhance contrast whenever the wavelength difference between an object and its surround/background is enhanced by selective absorption by the filter [104–111]. When the luminance ratio between the target and a background is close, this process will be enhanced due to the phenomenon of brightness induction.…”

Section: Visual Functions Influenced By Intrinsic and Extrinsic Comentioning

confidence: 99%

The Visual Effects of Intraocular Colored Filters

Hammond

2012

Scientifica

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Modern life is associated with a myriad of visual problems, most notably refractive conditions such as myopia. Human ingenuity has addressed such problems using strategies such as spectacle lenses or surgical correction. There are other visual problems, however, that have been present throughout our evolutionary history and are not as easily solved by simply correcting refractive error. These problems include issues like glare disability and discomfort arising from intraocular scatter, photostress with the associated transient loss in vision that arises from short intense light exposures, or the ability to see objects in the distance through a veil of atmospheric haze. One likely biological solution to these more long-standing problems has been the use of colored intraocular filters. Many species, especially diurnal, incorporate chromophores from numerous sources (e.g., often plant pigments called carotenoids) into ocular tissues to improve visual performance outdoors. This review summarizes information on the utility of such filters focusing on chromatic filtering by humans.

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Section: Visual Functions Influenced By Intrinsic and Extrinsic Comentioning

confidence: 99%