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KMID : 1011420130180040465
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Journal of Korean Ophthalmic Optics Society
2013 Volume.18 No. 4 p.465 ~ p.471
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Comparison of Stereopsis by Influence Factors in Induced Aniseikonia
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Jung Su-A
Kim Hyun-Jung
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Abstract
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Purpose:This study was conducted to research effects of influence factors on stereopsis of induced aniseikonia
in emmetropia.
Methods:20 college students (a mean age of 22.50±2.72 years, 14 males, 6 females) were
selected as subjects and all of them had no ocular disease or systemic disease, the refractive correction of
spherical equivalent within ±0.50 D, the corrected visual acuity of 1.0 or better and the aniseikonia values less
than 1% by AWAYA. Subject’s dominant eye was checked by Hole in card method and contact lenses of ?7.00 ~ +7.00D
were fitted to cause anisometropia in dominant eye or non-dominant eye, respectively. And then aniseikonia was
induced with spectacles to correct refractive error by contact lenses. Stereopsis was measured by Random Dot
Stereo Acuity Test with LEA symbols® (Vision Assessment CorporationTM, USA).
Results:Stereopsis was remarkably reduced by inducing aniseikonia, with induced aniseikonia in dominant eye, with higher diopter of wearing contact lenses to induce anisometropia, with spectacles lenses correction of minus power after fitting contact lenses with plus power and in case of men.
Conclusions:It should be considered to correct anisometropia
that aniseikonia could cause reduction of stereopsis.
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KEYWORD
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Aniseikonia , Stereopsis , Anisometropia , Dominant eye , Non-dominant eye
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