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Objective Assessment of Eye Dominance Using the VEP: A Pilot Study
Kevin T Willeford1, Kenneth J Ciuffreda, George Zikos
1Department of Biological and Vision Sciences (K.T.W., K.J.C.), SUNY State College of Optometry, New York, NY; and Institute for Vision Research (G.Z.), Manhattan Vision Associates, New York, NY.
Eye & Contact Lens
|April 2, 2015
Summary
Visual evoked potential (VEP) testing did not differentiate between dominant and nondominant eyes when assessing monovision correction. This objective method showed no promise for guiding clinical refractive correction.
Area of Science:
- Ophthalmology
- Neuroscience
- Optometry
Background:
- Eye dominance is crucial for successful monovision refractive correction.
- Current subjective methods for determining eye dominance can be inconsistent.
- Objective methods are needed to improve the accuracy of eye dominance determination.
Purpose of the Study:
- To develop a clinical protocol using visual evoked potential (VEP) to objectively determine eye dominance.
- To correlate objective VEP findings with subjective clinical tests.
- To provide guidance for clinical monovision refractive correction.
Main Methods:
- Developed a VEP protocol using the Diopsys NOVA-TR system.
- Assessed eye dominance using sensory and motor tasks.
- Recorded VEPs in 10 visually normal, presbyopic adults under various monocular defocus conditions.
Main Results:
- VEP amplitude and latency significantly differed from baseline with monocular defocus.
- Monocular defocus altered VEP amplitude and latency.
- No significant differences were found in VEPs between the dominant and nondominant eyes.
Conclusions:
- VEP findings did not differ based on eye dominance type or status.
- The VEP technique is not a promising objective adjunct for fitting monovision correction.
- Further research may be needed to explore other objective methods.
