Bias of the cover test in the diagnosis of alternating tropia

McKean, H.E.; Wirtschafter, J.D.; Marx, D.

Annals of Ophthalmology 8(4): 435-437

1976


ISSN/ISBN: 0003-4886
PMID: 1267314
Document Number: 99316
In the evaluation of patients with alternating tropia, all errors tends to falsely overclassify the fixation pattern as free alternation and underestimate monocular fixation. This bias is particularly undesirable in infants when the cover test is used because more direct measurements of visual acuity are not possible.

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