The Effect of the Rotational Magnification of Corrective Spectacles on the Quantitative Evaluation of the VOR

Stephen C. Cannon Department of Biomedical Engineering, The Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Ophthalmology, The Johns Hopkins University School of Medicine, Baltimore, Maryland

R. John Leigh Ocular Motor Neurophysiology Laboratory, Veterans Administration Medical Center, and the Department of Neurology, University Hospitals, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA

David S. Zee Departments of Neurology, The Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Ophthalmology, The Johns Hopkins University School of Medicine, Baltimore, Maryland

Larry A. Abel Ocular Motor Neurophysiology Laboratory, Veterans Administration Medical Center, and the Department of Neurology, University Hospitals, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA

Abstract

The gain of the vestibulo-ocular reflex (slow-phase eye velocity/chair velocity, measured in the dark) was compared in 11 normal healthy subjects who habitually wore corrective spectacles of varying strength. The rotational magnification (or prismatic effect) induced by habitually wearing corrective spectacles caused the VOR gain measured in darkness to vary systematically with diopter of correction. Even when allowances were made for the inherent variability of measurement of the VOR gain, myopes tended to have lower gains and hyperopes higher gains. This study demonstrates that the clinician should account for spectacle adaptation to properly interpret the results of vestibular function tests.

Key Words:

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Order Reprints Request Corporate Permissions

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

Request Academic Permissions

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.

The Effect of the Rotational Magnification of Corrective Spectacles on the Quantitative Evaluation of the VOR

Related Research Data

Information for

Open access

Opportunities

Help and information

The Effect of the Rotational Magnification of Corrective Spectacles on the Quantitative Evaluation of the VOR

Abstract

Reprints and Corporate Permissions

Academic Permissions

Related Research Data

Related research

To cite this article:

Download citation

Information for

Open access

Opportunities

Help and information

Keep up to date

Your download is now in progress and you may close this window

Login or register to access this feature