What would the world look like with a bionic eye?

Despite the increasing clinical and commercial use of retinal implants, the perceptual experience of sight recovery (SR) patients is surprisingly poorly understood.

A common misconception in the field is that each electrode in an array can be thought of as a ‘pixel’ in an image; to generate a complex visual experience, one then simply needs to turn on the right combination of pixels.

However, almost all SR technologies are likely to suffer from perceptual distortions and subsequent loss of information due to interactions between the technology and the underlying neurophysiology.

The goal of this project is to characterize these distortions psychophysically, and to develop a computational model that predicts what a patient should see for any given input stimulus.