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Historical Summary A 56-year-old white female presents for yet another opinion concerning her visual disorder that began in 1986. She was first evaluated more than 2 decades earlier because of a blind spot and flashes in the right eye. Best corrected VA at that time was 20/25 OD and 20/20 OS. The fundus exam was
Occult Retinal Disorders The Optos® fly through is particularly helpful for patient education in demonstrating the extent and location of retinal abnormalities.
The intriguing concept of a blinding retinal disorder that is invisible to ophthalmoscopy ("occult") can be traced to the late Dr. Donald Gass. Gass introduced the term AZOOR (Acute Zonal Occult Outer Retinopathy) in 1993 by reporting 13 cases with acute onset of vision loss in various zones of the visual field with normal
