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Clin Exp Optom. 2003 May;86(3):152-6.

Letter contrast sensitivity changes in early diabetic retinopathy.

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1
Centre for Eye Research, Queensland University of Technology.

Abstract

PURPOSE:

To investigate the discriminative ability of letter contrast sensitivity (CS) and visual acuity (VA) in detecting functional losses in participants with type 2 diabetes.

METHODS:

LogMAR VA and letter CS were measured on 20 type 2 diabetic and 24 age-matched control participants. The diabetic participants were sub-grouped according to the level of retinopathy present.

RESULTS:

Letter CS was able to distinguish those participants with and without macular oedema and those with no or minimal diabetic retinopathy from the control group, whereas VA was not.

CONCLUSION:

Letter CS may be used as an effective screening tool to assess damage to the visual pathway of diabetic participants both with and without clinically detectable signs.

PMID:
12767249
[Indexed for MEDLINE]
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