Mac Degen in 2010 – Page 22 of 62

The Reichert Foresee PHP® Preferential Hyperacuity Perimeter is the only FDA-approved office-based method for monitoring the conversion of Intermediate AMD (Dry) to Choroidal Neovascularization (Wet AMD). Based on the phenomenon of hyperacuity (Vernier), the ability to detect the misalignment of an object’s location relative to the other objects in space, the Foresee PHP is a non-invasive, quick, and easy-to-use perimeter that can detect early Wet AMD before symptoms become noticeable to patients, enabling clinicians to consider treatment when it is most effective. Hyperacuity is unaffected by a patient’s age and is highly resistant to retinal image degradation, and is thus suitable for assessing retinal function in patients with cataracts as well.