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Review
. 2018 Nov;115(11):922-927.
doi: 10.1007/s00347-018-0703-3.

[Cut-off filter : Physical and physiological basics]

[Article in German]
M Bach  1   2 , K Rohrschneider  3
Affiliations
Review

[Cut-off filter : Physical and physiological basics]

[Article in German]
M Bach et al. Ophthalmologe. 2018 Nov.

Abstract

Light filters with wavelength-dependent transmission and in particular cut-off or step filters (steep dependence of transmission on wavelength) have a broad optical application and are relevant in ophthalmology. This article describes some physical and physiological principles of cut-off filters, discusses the physiological aspects of applications, specifically the not always relevant necessity of blue-reducing filters and the lack of efficacy of color filters with color vision deficiencies.

Keywords: Colour vision; Contrast; Light filters; Stray light; Wavelength.

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