Normative contrast sensitivity values for the back-lit Melbourne Edge Test and the effect of visual impairment

Eperjesi, Frank, Wolffsohn, James, Bowden, Jason, Napper, Genevieve and Rubinstein, Martin (2004). Normative contrast sensitivity values for the back-lit Melbourne Edge Test and the effect of visual impairment. Ophthalmic and Physiological Optics, 24 (6), pp. 600-606.

Abstract

Background: The Melbourne Edge Test (MET) is a portable forced-choice edge detection contrast sensitivity (CS) test. The original externally illuminated paper test has been superseded by a backlit version. The aim of this study was to establish normative values for age and to assess change with visual impairment. Method: The MET was administered to 168 people with normal vision (18-93 years old) and 93 patients with visual impairment (39-97 years old). Distance visual acuity (VA) was measured with a log MAR chart. Results: In those eyes without disease, MET CS was stable until the age of 50 years (23.8 ± .7 dB) after which it decreased at a rate of ≈1.5 dB per decade. Compared with normative values, people with low vision were found to have significantly reduced CS, which could not be totally accounted for by reduced VA. Conclusions: The MET provides a quick and easy measure of CS, which highlights a reduction in visual function that may not be detectable using VA measurements. © 2004 The College of Optometrists.

Publication DOI: https://doi.org/10.1111/j.1475-1313.2004.00248.x
Divisions: Life & Health Sciences > Ophthalmic Research Group
Life & Health Sciences
Life & Health Sciences > Optometry
Uncontrolled Keywords: contrast sensitivity,low vision,Melbourne Edge Test,normative values,visual impairment,Ophthalmology,Sensory Systems,Health Professions(all)
Full Text Link: http://onlinelibrary.wiley.com/doi/10.1111/j.1475-1313.2004.00248.x/abstract
Related URLs: http://www.scopus.com/inward/record.url?scp=16644397577&partnerID=8YFLogxK (Scopus URL)
Published Date: 2004-11
Authors: Eperjesi, Frank ( 0000-0003-4358-0095)
Wolffsohn, James ( 0000-0003-4673-8927)
Bowden, Jason
Napper, Genevieve
Rubinstein, Martin

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