Effect of naturally occurring visual acuity differences between two eyes in stereoacuity

Kwok Cheung Andrew Lam; Apries S.Y. Chau; W. Y. Lam; Gloria Y.O. Leung; Becky S.H. Man

doi:10.1016/0275-5408(95)00034-8

Effect of naturally occurring visual acuity differences between two eyes in stereoacuity

Kwok Cheung Andrew Lam, Apries S.Y. Chau, W. Y. Lam, Gloria Y.O. Leung, Becky S.H. Man

Research output: Journal article publication › Journal article › Academic research › peer-review

37 Citations (Scopus)

Abstract

Stereoacuity was measured in 30 subjects with a naturally occurring visual acuity (VA) difference between the eyes. The stereoacuity was measured by a modified Howard's apparatus using the staircase method and VA was measured with log MAR charts. Stereoacuity was worse in subjects with a large VA difference between the two eyes; the correlation between stereoacuity and VA difference was significant (r = 0.76, P < 0.001). Neither the VA of the worse eye nor of the better eye contributed to the reduction in stereoacuity. The deterioration was more obvious if VA difference between the two eyes was one line or more (correlation coefficient, r = 0.88, P < 0.001). This study also reinforces the use of a ≥ 70% stereo-threshold when attempt stereoacuity results to compare with other studies.

Original language	English
Pages (from-to)	189-195
Number of pages	7
Journal	Ophthalmic and Physiological Optics
Volume	16
Issue number	3
DOIs	https://doi.org/10.1016/0275-5408(95)00034-8
Publication status	Published - 1 Jan 1996

ASJC Scopus subject areas

Ophthalmology
Optometry
Sensory Systems

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10.1016/0275-5408(95)00034-8

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abstract = "Stereoacuity was measured in 30 subjects with a naturally occurring visual acuity (VA) difference between the eyes. The stereoacuity was measured by a modified Howard's apparatus using the staircase method and VA was measured with log MAR charts. Stereoacuity was worse in subjects with a large VA difference between the two eyes; the correlation between stereoacuity and VA difference was significant (r = 0.76, P < 0.001). Neither the VA of the worse eye nor of the better eye contributed to the reduction in stereoacuity. The deterioration was more obvious if VA difference between the two eyes was one line or more (correlation coefficient, r = 0.88, P < 0.001). This study also reinforces the use of a ≥ 70% stereo-threshold when attempt stereoacuity results to compare with other studies.",

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AU - Chau, Apries S.Y.

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AU - Man, Becky S.H.

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Effect of naturally occurring visual acuity differences between two eyes in stereoacuity

Abstract

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