A PAPER PRESENTATION ON BIONIC EYE


  BIONIC EYE.pdf (Size: 347.54 KB / Downloads: 19)
ABSTRACT

Here, we present a description of a block scheme, specific features of design
and results of testing for a prototype of a bionic eye, types of them and its
applications. The bionic eye is intended to provide vision, partially to the visually
impaired by use of the modern day electronics devices like CCD cameras. The
comprises a computer chip that sits in the back of the individual's eye, linked up to a
mini video camera built into glasses that they wear. Images captured by the camera
are beamed to the chip, which translates them into impulses that the brain can
interpret.

INTRODUCTION

A Bionic Eye is a device, which acts as an artificial eye. It is a broad term for the
entire electronics system consisting of the image sensors, processors, radio transmitters &
receivers, and the retinal chip. Based on the institute developed these devices are
developed but with minor to major differences, of these the devices with functional
capability and those which are clinically tested and results proved are discussed here.
Here the designer’s objective is to go for a system that is technically perfect with no loop
holes and that is harmless to the human body which receives the system and that is
commercially viable both in terms of ease of manufacture, cost and the process of
implanting.

BIONIC EYE DEFINED:

Bionic Eye, Bio Electronic eye, is a device that can provide sight -- the
detection of light. It replaces the functionality of a part or whole of eye. it is used to
replace functionality as well as add functionality. It is a complex combination of
multiple devices which work together for restoration of the vision of the subject.

IMPLANT features

The size of implant is 50um. And it needs no external power supply. The response 500nm
to 1100nm wavelength response

Working:

For the technique to work, the patient must still have some functioning ganglion
cells - nerve cells that transmit visual information from the retinal cells to the optic nerve
- as well as a fully-functioning optic nerve. A tiny electronic pad is placed onto the retina
of one eye, so that the electrodes are in direct contact with the ganglion cells. Each of the
devices' 100 electrodes can stimulate 20 to 30 cells.

Real-time vision:

The user wears a pair of glasses that contain a miniature camera and that
wirelessly transmits video to a cellphone-sized computer in the wearer's pocket.
This computer processes the image information and wirelessly transmits it to a
tiny electronic receiver implanted in the wearer's head.