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High contrast and low contrast visual acuity in age related macular degeneration

Lovie-Kitchin, Jan E. (1989) High contrast and low contrast visual acuity in age related macular degeneration. Clinical and Experimental Optometry, 72(3), pp. 79-83.

Abstract

Low contrast Bailey-Lovie visual acuity (LCBL) and high contrast Bailey-Lovie visual acuity (HCBL) were measured in subjects with age-related macular degeneration (ARM) and subjects with normal visual function. Low and high contrast visual acuities and the difference between low and high contrast acuities were significantly different for the ARM group compared with the normals, confirming previous findings of disruption to contrast discrimination in ARM. The high contrast Bailey-Lovie chart was found to be a useful screening device for macular degeneration using a pass/fail criterion of 6/7.5. Pre-ARM (PARM) subjects can be defined as those with drusen and/or pigmentary disturbance and high contrast acuity of better than 6/7.5. However, the low contrast chart used at normal clinical illuminances is of no additional diagnostic value in ARM.

Impact and interest:

9 citations in Scopus
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ID Code: 5659
Item Type: Journal Article
Additional Information: For more information, please refer to the journal’s website (see link) or contact the author. Author contact details: j.lovie-kitchin@qut.edu.au
Additional URLs:
Keywords: age, related maculopathy, visual acuity, contrast, sensitivity, specificity
ISSN: 0816-4622
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300)
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: Copyright 1989 Optometrists Association Australia
Deposited On: 01 Dec 2006
Last Modified: 15 Jan 2009 17:16

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