6533b853fe1ef96bd12ac999

RESEARCH PRODUCT

<title>Selective filters for improvement of color discrimination</title>

subject

description

Colored filters have been used as possible aids for perception in case of congenital color vision abnormalities. Higher stimulation for L cones in one eye (red filter) and for M cones (green) in other eye acts as a simple method to interfere in human color vision processing. Influence on subjective and objective vision performances as binocular functions, fusion, stereopsis and color vision has been tested. Special colored glasses have been created, taking into account each subjects refraction for distance and tested for the 5 months adaption time. No negative influence on binocular functions, no changes of heterophoria and lowering in fusion ability and stereopsis have been stated due to use of the selective filters. Red/green isoluminant contrast perception ability and stereopsis have been stated due to use of the selective filters. Red/green isoluminanat contrast percption ability for distance improved from 0.2 m to 0.8 m individually. Subjective color perception improvement has been stated during use in adaptation time for all subjects.