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Article
August 1986

Stereoacuity Testing Does Not Replace Visual Acuity Testing-Reply

Author Affiliations

Columbus, Ohio

Arch Ophthalmol. 1986;104(8):1113. doi:10.1001/archopht.1986.01050200018006
Abstract

In Reply.  —While significant clinical problems were present among the patients included in the report by Avilla and von Noorden,1 it is difficult to compare their results in five clinical patients with our study2 of 483 elementary schoolchildren for the following reasons. Results of stereoacuity were obtained from a single presentation of the TNO test stimulus; there was no effort to have the child show repeatability of that performance. Other stereoacuity test conditions (eg, distance at which the test was conducted and the lighting used) were not enumerated. The sample size was limited. Testing was not done under masked conditions. Specifically, our RDE test distance was 2 m. By moving the test farther away, the test figure became more difficult to see for nonstereoscopic reasons.However, we indicated in our article that the favorable results we obtained with the RDE test do warrant further investigation of the procedure

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