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Vision Res. 2001 Apr;41(9):1229-38.

The influence of tinted lenses upon ocular accommodation.

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  • 1Department of Academic Ophthalmology, Imperial College of Science, Technology and Medicine, Western Eye Hospital, London, UK. a.simmers@ic.ac.uk

Abstract

We determined the effect upon accommodative responses of tinted lenses prescribed for the relief of visual discomfort in a group of five long term lens wearers. Static and dynamic responses were measured under four viewing conditions (1) prescribed tinted lens (2) neutral density filter (3) tinted lens of complementary colour and (4) no absorptive lens. While similarity and normality of the mean stimulus-response functions between the four viewing conditions were evident, the low frequency component of the accommodation microfluctuations was significantly greater while viewing the target in the 'no lens' viewing condition. These increases in the low frequency components (LFC) of the accommodation may be a subtle indicator of visual stress in these patients. Colour specificity is not supported by this finding.

PMID:
11292510
[PubMed - indexed for MEDLINE]
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