Relationship and Impact Of Strabismus On Head And Eye Movement
Abstract
Strabismus also known as misaligned eyes is disorder associated with sense of sight that can affect physiological and psycho-social activity of humans and in this study, its effect on eye movement with slight or no head movement of subjects. This study aimed at evaluating the impact of strabismus on head and eye movement. Subjects recruited were strabismic, myopic and relative emmetropes. Effect of strabismus on visual acuity was attained using Snellens’ distance and near chart but result showed no relationship when compared with emmetrope’s acuity. Near point of accommodation using meter rule was also carried out showing accommodation break-up, recovery and amplitude of accommodation; giving the result that strabismus does not have any effect on accommodation. Hirschberg or broad H test was used in this study to show the effect of strabismus on eye movement and head movement, and it showed that for eye movement some muscles are suppressed or defective, with the lateral deviation type of strabismus- esotropia and exotropia recruited for this study, showing that media and lateral rectus can be affected and that there is no relative impact on head movement. This study has shown that although strabismus is an eye defect it does not have any effect or impact on visual acuity, accommodation, or on head movement, it only has impact on eye movement with by suppressing eye muscles.
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References
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