Effect of Red, Yellow and White Light Emitting Diode (LED) on Rat's Retina

Authors(4) :-M. I. EL Gohary, M.M. Gamal, A. E. Ibrahim, M. A. Abu Ghazala

Light-emitting diodes (LEDs) are the basic lighting components in screens of PCs, phones and TV sets; hence it is so important to know the implications of LED radiations on the human visual system. The present study is designed to evaluate the influence of Red, Yellow and White LEDs on rat's retina. Sixty-six female Wistar albino rats weighing 250-300 g classified into 4 groups. Group (1) served as control. Group (II) exposed to (645 nm) red LED (12 hr light - dark cycle) for 3, 7, 14 and 21days. Group (III) exposed to (588 nm) yellow LED (12 hr light - dark cycle) for 3, 7, 14 and 21days and Group IV exposed to (the wavelength peaks are 448.7 nm and 561 nm) white LED (12 hr light - dark cycle) for 3, 7, 14 and 21days. At the end of each period, electroretinogram (ERG) has been carried out. The results indicated that there was no significant effect for yellow LED on the ERG. After exposure of rat's retina to red and white LED, there is reduction in a- and b- wave amplitudes. The data suggest that the red and white LED may causes retinal toxicity. Therefore, it is very important to recognize the hazard of LED radiations that affects vision and take appropriate precautions for the eye safety.

Authors and Affiliations

M. I. EL Gohary
Physics Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, Egypt
M.M. Gamal
Biophysics and Laser Science Unit, Research Institute of Ophthalmology, Giza, Egypt
A. E. Ibrahim
Biophysics and Laser Science Unit, Research Institute of Ophthalmology, Giza, Egypt
M. A. Abu Ghazala
Physics Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, Egypt

Light Emitting Diodes, Electroretinogram

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Publication Details

Published in : Volume 3 | Issue 5 | July-August 2017
Date of Publication : 2017-08-30
License:  This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 729-736
Manuscript Number : IJSRSET118486
Publisher : Technoscience Academy

Print ISSN : 2395-1990, Online ISSN : 2394-4099

Cite This Article :

M. I. EL Gohary, M.M. Gamal, A. E. Ibrahim, M. A. Abu Ghazala, " Effect of Red, Yellow and White Light Emitting Diode (LED) on Rat's Retina, International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 3, Issue 5, pp.729-736, July-August-2017.
Journal URL : http://ijsrset.com/IJSRSET118486

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