Contact Us
Find A Doctor

Evaluation of the Preferential Hyperacuity Perimeter (PHP) Device Study

Principal Investigator

Richard Rosen, M.D.

Enrollment Status



To evaluate the fitness and validate the ability of the Notal Vision Macular Computerized Psychophysical Test (MCPT), a Preferential Hyperacuity Perimeter (PHP) Professional device, to detect CNV patients and differentiate them from intermediate AMD patients in a better manner than does the Amsler Grid.

Study Results

One hundred fifty patients participated in the trial. The PHP had greater sensitivity, although with a relatively high rate of false-positive results for healthy individuals, than the Amsler grid in detecting AMD-related lesions.

For more information:


Contact Us

Dr. Richard Rosen, Principal InvestigatorTel: (212) 979-4284

Katy Tai, Research ManagerTel: (212) 979-4251

Address310 E. 14th StreetNew York, NY 10003

View all locations