The Effect Of Small Amounts Of Artificially Induced Anisometropia On The Forced Vergence Fixation Disparity Curve.

This experiment examined the effect that the introduction of small amounts of anisometropia had on the forced vergence disparity curves of four subjects. Its purpose was to investigate whether the forced vergence fixation disparity curve could be a clinically useful technique in questions concerning small amounts of anisometropia. The results of this experiment show the response of the forced vergence fixation disparity to small amounts of anisometropia to vary with the subject as well as the portion of the curve. In some cases, as little as.5 D had a noticable effect while in other cases, 1. 00 D of anisometropia appeared to have no effect . Finally, applications
of this approach are considered .