Patients with inherited retinal diseases (IRDs) utilize various adaptive techniques and devices designed to assist them activities of daily living (ADLs). The purpose this study was assess the assistive used by patients IRDs, difficulties they face despite these devices, their recommendations for a future visual prosthesis. In collaboration blind patients, an online survey developed administere...

A 76-year-old patient experienced a car accident several years earlier that resulted in the loss of his right eye (ocular prosthesis) and retinal detachment left eye, treated with scleral buckle. computed tomography scan head (Fig A) showed bilobed globe separated by ring hyperdensity (scleral buckle). Ultra-widefield fundus imaging B) demonstrated major circular indentation delimiting anterior...

PURPOSE Short-term pattern electrical stimulation of the retina via multielectrode arrays in humans blind from photoreceptor loss has shown that ambulatory vision and limited character recognition is possible. To develop an implantable retinal prosthesis that would provide useful vision, these results need to be sustained over a prolonged period of retinal electrical stimulation. As a first ste...

Retinal prostheses for treating incurable blindness are designed to electrically stimulate surviving retinal neurons, causing them to send artificial visual signals to the brain. However, electrical stimulation generally cannot precisely reproduce typical patterns of neural activity in the retina. Therefore, an electrical stimulus must be selected so as to produce a neural response as close as ...