Eye fundus tracker/stabilizer

摘要: An eye movement tracker for stabilizing in two dimensions a diagnostic, treatment or other ophthalmic illumination on the fundus has laser source which produces narrow directed tracking beam, an optical steering assembly controllably directing beam to illuminate region of fundus, and imaging illuminated spatially-distributed photodetecting element. A circuit scans detecting element detect motion spatially variant intensity feature controls redirect path maintain fixed position. This repositions diagnostic illumination, maintaining it position during movement. Scanning rates many times those conventional systems are achieved, effectively even very rapid movements. viewing port provides operator with 30 degree field subject's fundus.