Volume : VII, Issue : IX, September - 2018

EFFECTS OF AGE ON VISUAL EVOKED POTENTIAL VALUES

Monika Kamra, Dr. Sonia Kochhar

Abstract :

 Aim of the study: To evaluate the effect of aging on Visual Evoked Potential latencies and wave amplitude.Method and Materials: The study was conducted in the department of Physiology, MMIMSR, Mullana (Ambala). The study comprised of 100 healthy subjects between the age group of 21–60yrs consisting of both males and females. The subjects were divided into 4 age groups each consisting of 25 subjects: Group 1. 21–30 years, Group 2. 31–40years, Group 3. 41–50 years andGroup 4. 51–60years.The equipment used was Allengers Scorpio EMG EP NCS system provided by Allengers Medical system Limited, Chandigarh. VEP was evaluated by voltage changes generated following application of pattern reversal visual stimulus to the visual system. Results: From the analysis of data, latency of N75 wave of both right eye and left eye are increasing highly significantlywith advancement of age(p value= .0008).Latencies of P100 and N145wave are also increasing significantly in both right and left eyes with increasing age(p value lesser than .0001 and .018 respectively). Amplitude of P100 wave of left eye is decreasing significantly with advancement of age with p value .03 and amplitude of P100 wave of right eye is decreasing non significantly. Conclusion: There is significant effect of aging on VEP latencies and amplitude values in our study. With advancement of age, latencies are prolonged and amplitudes get shorter in our study.< clear="all" style="page–eak–before:always;mso–eak–type:section–eak" />

Article: Download PDF    DOI : https://www.doi.org/10.36106/paripex  

Cite This Article:

Monika Kamra, Dr. Sonia Kochhar, EFFECTS OF AGE ON VISUAL EVOKED POTENTIAL VALUES, PARIPEX‾INDIAN JOURNAL OF RESEARCH : Volume-7 | Issue-9 | September-2018

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