10-04-2017, 08:58 PM
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