ARTIFICIAL RETINA SHEDS NEW LIGHT

ARTIFICIAL RETINA SHEDS NEW LIGHT

ABSTRACT:

• In this paper I describe the need for artificial retina and the current version of
artificial retina and the future expectations.

• For those millions of us whose vision isn't perfect, there are glasses. But for those hundreds of thousands who are blind, devices that merely assist the eyes just aren't enough. What they need are alternative routes by which the sights of the world can enter the brain and be interpreted.

• There are 25 million people across the globe, including 6 million Americans, who are blind or severely visually impaired by diseases such as age-related macular degeneration (AMD) and retinitis pigmentosa (RP), both of which destroy the cells that allow light to be translated into recognizable images. By 2020, that figure is expected to double, creating a virtual vision-loss epidemic.It is this current need, as well as the future threat, to create the artificial retina project.

• The artificial retina could help those blinded by age-related macular degeneration or retinitis pigmentosa where neural wiring from the eye to brain is intact, but the eyes lack photoreceptor activity.

• In this paper I describe the need for artificial retina and the current version of artificial retina and the future expectations.


INTRODUCTION:

Although he is blind, he sees everything. He wears special glasses capable of transmitting optical signals directly to the brain. Science or Fiction? Beeep, beeep, beeep. Your eyes pop open and scan the table for the alarm clock. Time to get up. Where are your slippers? There they are, flung under the chair. Next you head to the kitchen. Another search begins for the coffee. Aha! You spot the beans behind the filters.

Start again. This time, keep your eyes closed. Even the simplest tasks will provide a steep challenge. Seeing is a complicated process. First, light falls onto the retina's optical cells, which transform it into electrical impulses. The signals are sent via the optical nerve to the brain, where a complicated process results in the images we see. Just one broken link in this chain of events means the person can no longer see-s/he is blind.


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