ARTIFICIAL EYES

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INTRODUCTION

Form of neural prosthesis to restore vision
An externally worn camera and a retinal implanted chip makes it possible
It is often usable for those who suffers from age-related macular degeneration (AMD) or retinal pigmentosa

NORMAL & ARTIFICIAL VISIONS
Normal vision- Begins when light enters and strike on photoreceptor cells. These cells convert light to electric impulses that are sent to brain via optic nerves.
Artificial vision- The camera captures images and sends to retina implant. It stimulates neurons. The stimulated neurons send information to brain via optic nerves.

TYPES OF ARTIFICIAL EYES

First generation – Consists of 16 electrode array and large sized receiver placed behind ear
Second generation – Designed with 60 electrode array and much smaller receiver placed around the eye