[Skip to Content]
Access to paid content on this site is currently suspended due to excessive activity being detected from your IP address 54.161.155.6. Please contact the publisher to request reinstatement.
[Skip to Content Landing]
Article
November 1986

Test Accuracy and Predicting Outcome

Author Affiliations

Morgantown, WVa

Arch Ophthalmol. 1986;104(11):1584. doi:10.1001/archopht.1986.01050230022006
Abstract

To the Editor.  —In his recent editorial, Dr Guyton1 emphasized the dangers of attending only to the accuracy of a test to assess visual function behind opacities. He indicated a strong concern with mechanisms responsible for overestimates of postoperative acuity (false-positives) and suggested recommendations for future investigations. Although we agree with Dr Guyton's basic points, we would like to suggest a change in his terminology and an expansion of his area of concern.In most scientific and medical literature, a positive test is by convention one that indicates the presence of a disease.2 A false-positive test indicates the presence of a disease when no disease is present. In ophthalmology, poor visual acuity is evidence of visual disease. By analogy, then, if one is evaluating visual function behind a media opacity, a test that predicted poor postoperative visual acuity should be termed a positive test, and a test that

First Page Preview View Large
First page PDF preview
First page PDF preview
×