1 2 3 4 5 6 7 8 9

J. Vernon Odom, Ph.D. – Professor

304-598-6959

PO Box 9193
WVU Eye Institute
Morgantown, WV 26506


Affiliations

Opthamology, Physiology, Pharmacology, & Neuroscience; Rockefeller Neuroscience Institute

Graduate Training

University of North Carolina, Greensboro

Fellowship

Case Western Reserve University School of Optometry, University of California at Berkeley; University of Florida; Netherlands Ophthalmic Research Institute; University of Leuven Institut National de la Sante et Reserche Medicale (INSERM)

Research Interests

My basic research interest is in the assessment of visual function, primarily in humans. I have been particularly interested in higher order visual processes, including binocular vision and optic flow. I use a range of techniques including electrophysiology (electroretinography and visually evoked potientials), psychophysics, and questionnaires. Being in a clinical department, I frequently use my knowledge of visual function either to perform special testing of clinical patients or to evaluate systemic disease effects on the eye.
Research Topics
 
Low Vision and Orientation, Mobility, and Action
One of the major issues in low vision is the ability of patients with low vision to maintain their independence and to avoid accidents. Stated in another way we may ask: how does reducing visual input alter people’s ability to navigate and perform visually guided motor tasks, such as pouring a cup of coffee or other activities of daily living? Does the type of impairment, loss of central field, loss of peripheral field, or patchy loss have distinctive effects? What roles do changes in sensitivity to specific visual cues and knowledge (familiarity) with their environment play in people’s ability to be mobile and active? Understanding the relationship between low vision, sensitivity to optic flow, and mobility also has important implications for low vision rehabilitation. Are the compensatory strategies that have been developed for rehabilitating low vision patients optimal? Frequently low vision rehabilitation involves prescribing optical devices. Do optical devices compensate for or exacerbate a way of overcoming difficulties? 
Optic Flow and Mobility
One of the major clues for determining one’s visual direction or heading is optic flow, i.e., the relativechange in positions of objects at different places in the visual field as one moves. In an optic flow field there is a point from which all of the changes flow. As one moves forward, this point does not change. This stationary point of expansion (POE) is the point toward which the person is heading. To the best of our knowledge there are no studies that determine the sensitivity of low vision patients to optic flow information or compare their sensitivity to that of age-matched controls. These simple demonstrations will be the initial step in our research program. They will be followed by studies, which determine the relationship between an individual patient’s ability to detect optic flow information and their ability to perform simple mobility tasks.
Understanding Binocular Vision
Understanding binocular vision and the influence of parallel visual processing is a continuing research interest. We have developed a model of binocular luminance interaction based on evoked potential and psychophysical studies in humans and nonhuman primates (see figure). This continuing interest in binocular vision forms the basis of collaboration with Dr. Janine Mendola’s projects on fMRI imaging of amblyopia.

Lab Personnel and Collaborators

Collaborators 
Janine Mendola, PhD
Assistant Professor
McGill Vision Research Department of Ophthalmmology
McGill University
Lab Personnel
Homer Humble
Research Assistant
304-598-4934
humbleh@rcbhsc.wvu.edu

Publications

Publications in Peer Reviewed Journals (selected from 85)

More publications

Recent: Book Chapters, Proceedings and Editorials (selected from 47)

  • Brodie, S., Odom, J.V., and Leys, M.J.J.  Clinical Visual Electrophysiology.  In W. Tasman and E.A. Jaeger (eds.).  Duane’s Clinical Ophthalmology. Vol. 3. Chapter 5, Philadelphia, PA:  J.B. Lippincott Co., 2011.
  • Odom, J. V. and Green M.  Visual Aging and Driving. Marc Green, Merrill J. Allen, Bernard S. Abrams, Leslie Weintraub and J. Vernon Odom. Forensic Vision: With Application to Highway Safety.  3rd ed.  Tucson, Az: Lawyers & Judges Publishing, 2008.
  • Odom, J.V. Amplifiers and special purpose data acquisition systems. In Heckenlively J, Arden G, eds. Handbook of Clinical Electrophysiology of Vision Testing, 2nd Ed. The MIT Press: Cambridge, MA (2006).
  • Odom, J.V. Kernel analysis.In Heckenlively J, Arden G, eds. Handbook of Clinical Electrophysiology of Vision Testing, 2nd Ed. The MIT Press: Cambridge, MA (2006).
  • Walter, C., Humble, H, Althouse ,R, Odom, J.V. A comparison of low-vision patients from a clinic and a random sample of West Virginians: demographics, treatment patterns, vision problems, and activities of daily living. In Jones S, Rubin G, Hamlin D, eds. Vision 2005— Proceedings of the International Congress held between 4–7 A pril 2005 in London, UK, International Congress Series (2006), 1282:462-465.

WVU Rockefeller Neuroscience Institute