Heterophoria in young adults with emmetropia and myopia

Chen, A.H.; Aziz, A.

Malaysian Journal of Medical Sciences Mjms 10(1): 90-94

2003


ISSN/ISBN: 1394-195X
PMID: 23365507
Document Number: 259764
The purpose of this study was to investigate the relationship between heterophoria and refractive error. Thirty-six subjects (11 myopes, 25 emmetropes) participated in this study. Heterophoria was measured with the Free-Space Phoria Card at five different viewing distances (25cm, 33cm, 50cm, 100cm and 300cm). Regardless of the types of heterophoria, the amount of heterophoria reduced towards orthophoric position with increasing viewing distance. Emmetropes and myopes did not show any significant difference in the degree of heterophoria at different viewing distances (F = 0.30, p>0.05) or in the type of heterophoria (χ(2) = 2, p>0.05).

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