Rehabilitation for the patients with homonymous hemianopsia by Head Mounted Display : The background and the basis

Abstract

Some congenital homonimous hemianopsis patients have exotropia. We tried rehabilitation for the patients with homonymous hemianopsia by Fresnel prism placed on a spectacle lens. But high power Fresnel prism membrane is not clear. Therefore the visual acuity of the patients with this glasses was low. Head mounted display can use for same purpose with less decreasse of thier visual acuity.