Retina Resistivity Analyzer
Ravada Aamani1, Rudra Pratap Das2, A. Sampath Dakshina Murthy3

1Ravada Aamani, Department of Electronics and Communication Engineering, Vignan’s Institute of Information Technology, Visakhapatnam (A.P), India.
2Rudra Pratap Das, Senior Professor, Vignan’s Institute of Information Technology, Visakhapatnam (A.P), India.
3A. Sampath Dakshina Murthy, Department of Electronics and Communication Engineering, Vignan’s Institute of Information Technology, Visakhapatnam (A.P), India.

Manuscript received on 18 April 2019 | Revised Manuscript received on 25 April 2019 | Manuscript published on 30 April 2019 | PP: 1523-1526 | Volume-8 Issue-4, April 2019 | Retrieval Number: D6427048419/19©BEIESP
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Abstract: Retina play a vital role in nervous system being directly connected to the brain .Depending on the person & his mental and physical health the character of retina ought to change .To study such changes and possibly diagnose clients of the human body, retina needs to be examining .The purpose of the invention is to collect data of resistivity values of retina by a simple economical method. The conventional techniques involved light ray based study using coherent light such studies could be dangerous in the long run .The proposed method is the non invasion process of applying four electrodes to the eyelid at specify distances so that the retina resistivity can be easily determined .The data collected by such a device can be useful for a finding out the health of the body and even predict future affections. Analogous to resistivity probe in geological exploration studies and resistivity measurements of semi – conductor our invention uses Schlumberger method. Two outer electrodes carry the current from a constant current source; the inner electrodes pick up the voltages with reflected from inside. All the electrodes are filled like a set of lenses and the spectacles. A simple circuit concealing of a battery few resistors and an ammeters and voltmeter combination gives the apparent resistance associated with 2/3 of the distance of any outer electrodes from the centre .The resistivity calculated from the apparent resistance is related to the retina. The initial study on the device has been quite encouraging and is able to distinguish resistivity of old persons to that of young person’s .So in future more data needs to be collected from various persons show us to have a knowledge base further analysis.
Keywords: Resistivity, Electrodes, Ammeters, Voltmeter, Four Probe Methods.

Scope of the Article: Bio-Science and Bio-Technology