Research Interests

Macular Function in Low Vision Patients

Eighty-five percent of low vision patient’s eyes do not have functioning foveas and of those that do, fifty percent have a dense macular scotoma within 2 degrees. The development of eccentric preferred retinal loci (PRL) and the implications of central field disruptions on activities of daily living such as reading remains my primary research interest. Use of the scanning laser ophthalmoscope is my prime tool of investigation.


Research questions include:

1. Can the patient’s ability to use a PRL be improved?

a. Biofeedback
b. Patient awareness training
c. Compensatory eye movement training – dynamic visual field testing
d. Repetitive rehabilitation tasks, etc.

2. Do current and proposed macular treatments influence central field and functional ability of patients?

a. PDT (Photo Dynamic Therapy)
b. Grid Laser Treatment
c. Internal Limiting Membrane Stripping for Traction Maculopathy
d. VEGF (Vascular Endothelial Growth Factor), etc

3. How do macular visual function characteristics influence task performance?

a. PRL threshold sensitivity
b. PRL relationship to scotomas
c. PRL distance from fovea
d. PRL fixation stability
e. PRL and eye movement ability

Outcomes of Occupational Therapy Training of Low Vision Patients

Occupational therapy is increasingly involved in rehabilitation of low vision patients across the United States. Outcomes studies are needed to guide therapy to maximize outcomes in activities of daily living. Proof of effectiveness is necessary for insurance reimbursement also.

The OT department will be working closely with our department and monitoring outcomes will likely allow significant research potential. Some specific areas of interest to me include:

1. Stroke and Traumatic Brain Injury/Hemianopia rehabilitation
2. Home health training in kitchen and other domestic activities
3. Basic visual skill training

Psychology in Low Vision Rehabilitation

Losing vision is discouraging and the emotional implications on the individual are great. It is my impression that the emotional status of the low vision patient is the major factor affecting rehabilitation outcomes. I am anxious to work with psychologists to address how these factors can be addressed.