Effects of surgically-induced unilateral exotropia on orientation anisotropy in rhesus monkey

dc.contributor.advisorHarwerth, Ronald S.
dc.contributor.committeeMemberSmith, Earl L., III
dc.contributor.committeeMemberBoltz, Roger L.
dc.creatorOkundaye, Osazuwa John
dc.description.abstractThe contrast sensitivity for sine wave gratings as a function of the grating orientation was determined for both eyes of two rhesus monkeys which had been reared with surgically-induced exotropia. The data were collected at both threshold and suprathreshold contrast levels. The fixating eyes exhibited a normal oblique effect which was slightly larger in magnitude than that of humans. The deviating eyes of both monkeys exhibited a vertical effect [reduced sensitivity for gratings with vertical orientation] rather than an oblique effect. The suprathreshold experiments showed that the vertical effect was present at approximately the same magnitude at all suprathreshold contrast levels. The presence of the vertical effect in the strabismic eyes of the monkeys is an additional parallel in the development of human and monkey and strengthens the use of the monkey as a model for the human visual system.
dc.description.departmentOptometry, College of
dc.format.digitalOriginreformatted digital
dc.rightsThis item is protected by copyright but is made available here under a claim of fair use (17 U.S.C. Section 107) for non-profit research and educational purposes. Users of this work assume the responsibility for determining copyright status prior to reusing, publishing, or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions requires express permission of the copyright holder.
dc.subjectRhesus monkey--Physiology
dc.titleEffects of surgically-induced unilateral exotropia on orientation anisotropy in rhesus monkey
dcterms.accessRightsThe full text of this item is not available at this time because it contains documents that are presumed to be under copyright and are accessible only to users who have an active CougarNet ID. This item will continue to be made available through interlibrary loan.
thesis.degree.collegeCollege of Optometry
thesis.degree.departmentPhysiological Optics, Department of
thesis.degree.disciplinePhysiological Optics
thesis.degree.grantorUniversity of Houston
thesis.degree.nameMaster of Science


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