Unilateral intraocular lens. Matching brightness and colour perception against the phakic healthy fellow eye.
A combination of yellow and neutral filters was placed in front of an eye with IOL in order to find a colour and brightness match with the healthy phakic fellow eye. A Munsell standard blue pigment colour target was used as a test. Nine persons with a unilateral IOL were examined. The yellow Schott filter GG 420 was chosen by 2 observers, GG 435 by 5 and GG 455 by the remaining 2. In combination with the yellow filter a Schott neutral filter 0.1 NG was preferred by 3 observers, and each of the neutral filters 0.3 NG, 0.45 NG and 0.6 NG was chosen by 2 observers. The luminance of the coloured test target was measured to be 120 cd/m2 without filters and 86 to 31 cd/m2 as measured through the selected filter combinations.
Aarnisalo
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Department of Ophthalmology, Satakunta Central Hospital, Pori, Finland.
D000328:Adult; D000368:Aged; D003118:Color Perception / Q000502:physiology*; D005260:Female; D006801:Humans; D007910:Lenses, Intraocular; D008027:Light; D008297:Male; D008875:Middle Aged