Indian Journal of Clinical and Experimental Ophthalmology


Online-Issn No :
2395-1451
Print-Issn No :
2395-1443
Language :
English
Publisher :
IP Innovative Publication Pvt. Ltd.

Indexed - 2016 : IPI Value (3.9)

Indexed - 2017 : IPI Value (4.02)

Indexed - 2018 : IPI Value (3.7)

Indexed - 2019 : IPI Value (3.44)


Determination of ocular dominance and its association with handedness


Article PDF :

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Article type :

Original Article

Author :

Vani Puri, Amit Sethi.

Volume :

3

Issue :

4

Abstract :

Purpose: Clinical relevance of ocular dominance [OD] lies in its role in success of monovision. This study aims to determine easy and reliable methods to test OD and association of OD with handedness. Methods: Prospective study of 300 patients, with best corrected visual acuity of 6/6, interocular difference of < 1Dioptre, and absence of any ocular, oculomotor or binocular abnormalities. Two subjective tests were done to determine OD - Miles [sighting dominance] and Fogging tests. Handedness was determined by history. Ambidextrous patients and those unable to understand or giving equivocal replies, were excluded. Kappa [k] statistics [inter test agreement], and Chi-Square test and Odds ratio [association between handedness and ocular dominance] were applied. Results: Mean age 35.28 years, spherical equivalent refractive error ranged +2 and -6 D. Both tests had perfect agreement [k=1]. 67.33% patients were Right Ocular Dominant (ROD) whereas 32.67% were Left Ocular Dominant. 65.67% had matched dominance of eye and hand. No significant association between handedness and ocular dominance. Conclusion: Mile’s and Fogging tests are reliable and easy to perform in clinical setting. Since no direct analogy could be established between patterns of eye – hand dominance, assumption of OD cannot be made on the basis of handedness. As 94.33% patients were Right Handed whereas 67.33% were ROD, the results could not be directly extrapolated in patients with dense cataracts where OD cannot be conclusively determined.

Keyword :

Handedness, Monovision, Ocular dominance

Doi :

10.18231/2395-1451.2017.0122

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