A Study on the Heterophoria in Emmetropia and Ametropia.

Sohn, Mi Mi; Ahn, Chung Sook

Original Article

Journal of the Korean Ophthalmological Society 1991;32(7):574-579.
Published online July 1, 1991.

A Study on the Heterophoria in Emmetropia and Ametropia.

¹Department of Ophthalmology, Seoul Koryo Gemeral Hospital, Seoul, Korea.
²Department of Ophthalmology, College of Medicime, Ewha Womans University, Seoul, Korea.

정시안 및 비정시안에서의 사위에 대한 고찰

손미미(Mi Mi Sohn),안정숙(Chung Seok Ahn)

Abstract

The purpose of this study was to examine the heterophoria in emmetropia and ametropia. The subjects were 337 healthy men and women between the age of 20-41 years. In 337 cases, Emmetropia were 135 cases, Ametropia were 202 cases. The entire group was tested for heterophoria with synoptophore. In the ametropia, this test was performed before and after correction of refractive error with glasses. The results were as follows: 1. The incidence of heterophoria was 84.4% in emmertropia, 89.2% in myopia and 91.4% in hyperopia. 2. Exophoria was most common in myopia. But in emmetropia and hyperopia, there was no significant difference between the incidence of exophoria and esophoria. The incidence of hyperphoria and cyclophoria was not significantly different between emmetropia and ametropia. 3. In the ametropia, the size of heterophoria was slightly decreased after correction, but the difference was not significant (p>0.05). 4. There was no correlation between the amount of refractive error and the size of heterophoria (p>0.05).

Key Words: Heterophoria;Emmetropia;Ametropia;Correction