Automatic generation of a retinal sensitivity map using infra-red fundus television images.

We have already developed an eye movement analyzing system using an infra-red television fundus camera. Although the quality of the fundus TV images is not good, the system can measure eye movement with an accuracy order of 0.1 degree. We try to apply this system to compensating for eye movements in producing a retinal sensitivity map. A target with variable brightness is presented to various positions on the retina of a subject through a CRT assembled in the infra-red TV fundus camera. The subject is supposed to respond if he can perceive the target. The TV image of the eye fundus, together with the overlaid target and response sign, is recorded on a U-matic (3/4 in) VTR. The image of the video tape is then analyzed by a computer. We have obtained retinal sensitivity maps which show good agreement with the results obtained using the Goldmann perimeter.