Cataracts and contrast

Hejcmanová, D.; Peregrin, J.

Ceska a Slovenska Oftalmologie Casopis Ceske Oftalmologicke Spolecnosti a Slovenske Oftalmologicke Spolecnosti 52(3): 147-151

1996


ISSN/ISBN: 1211-9059
PMID: 8768471
Document Number: 455087
The value of visual acuity in patients with incipient cataract, as measured using the conventional Snellen charts amounts to normal or near normal values (6/9-6/6). Nevertheless, their contrast sensitivity determined using the Ginsburg charts or optotypes with lowered contrasts is markedly depressed. The measurement of the visual acuity alone is insufficient diagnostic purposes in these patients.

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