Effect of Experimentally Induced Anisometropia on Binocular Vision.

Heo, Jang Won; Yoo, Kyung Won

Original Article

Journal of the Korean Ophthalmological Society 1999;40(12):3468-3473.
Published online December 1, 1999.

Effect of Experimentally Induced Anisometropia on Binocular Vision.

Jang Won Heo, Kyung Won Yoo

Department of Ophthalmology, College of Medicine, Dong-A University, Pusan, Korea.

실험적으로 유발된 굴절 부등이 양안시에 미치는 영향

허장원(Jang Won Heo),유경원(Kyung Won Yoo)

Abstract

We investigated the effect of experimentally induced anisometropia on binocular function. Unilateral myopia, hyperopia, or astigmatism(Axis 90degrees) was induced in eighteen adults with normal binocular function using softcontact lenses. Sensory status was assessed by measuring stereoacuity, Worth four dot test, and Bagolini lens test. Binocular function of all subjects decreased with increasing levels of anisometropia. In Worth four dot test, foveal suppression increased in proportion to the levels of anisometropia. Stereoacuity was similarly degraded by the induced anisometropia. Bagolinilens responses were normal in almost all subjects. Our study suggest that experimentally induced anisometropia cause significant abnormalities in binocular function in adults.

Key Words: Anisometropia;Binocular function;Soft contactlens