Levan Mikeladze¹, Nino Karanadze¹, David Delibashvili¹, Nino Tskhvediani¹, Gulnara Tabidze³, Nugzar Gomidze², Vakhtang Shoshiashvili¹* and Luiza Gabunia¹

¹Tbilisi State Medical University, Georgia
²Shota Rustaveli Batumi State University, Georgia
³Ivane Javakhishvili Tbilisi State University, Georgia

*Corresponding Author: Vakhtang Shoshiashvili, Tbilisi State Medical University, Georgia.

Received: July 01, 2024; Published: August 05, 2024

Abstract

The results of our research and data from literary sources allow us to conclude that the spectrum of room lighting with incandescent and LED electric lamps is significantly different from each other and, therefore, their effects on the eye and the balance of the autonomic nervous system are different. In particular, a study using a spectrometer showed that the illumination of an incandescent electric lamp covers the full range of the visible spectrum, while a sharp failure of the spectrum of white color light was observed in 470 when illuminating a Phillips LED 620 lamp. 500 nm range.

The dynamics of the diameter of the pupil of the eye was different under the conditions of illumination with incandescent and white LED electric lamps. In particular, when illuminated by a white LED electric lamp, the diameter of the pupil of the eye was greater than when illuminated by an incandescent electric lamp. Studying the functional condition of the ocular surface through the OSDI study revealed an acute category of eye symptoms in 30 out of 100 cases. This fact made it necessary to include this contingent to evaluate the autonomic nervous balance. The study of heart rate variability found a statistically reliable increase in heart rate, as well as a significant increase in the stress test indicator under the conditions of the LED electric lamp, as opposed to the incandescent electric one. The latter gives us a reason to conclude that the white LED electric lamp significantly worsens the functional condition of the organ of vision and disturbs the balance of the regulatory mechanisms of the autonomic nervous system. The results of their own studies have shown that the lighting of classrooms can cause completely unpredictable negative consequences in children [5], because failure in the blue color range of the spectrum can cause photochemical damage to the retina [6,7]. Also, one-hour irradiation with LED electric lamps in sleeping children causes a significant release of cortisol in the blood, which is much higher than the normal value [8]. At the same time, it is important to note that melanopsin is most sensitive in the 460-480 nm range of the light spectrum. In this range, LED lamps have a pronounced cutoff (480 nm), which determines inadequate pupil control and possible retinal damage.

 Keywords: LED Lamps; iPADs; Ocular Surface Disease Index (OSDI)

References

1. Gomidze N and Gomidze Kh. Radiophysics, Batumi, (2022): 336.
2. World Medical Association Declaration of Helsinki. “Ethical Principles for Medical research involving among subjects”. JAMA20 (2013): 2191-2194.
3. Glantz SA. “Primer of Biostatistics”. Seventh Edition, New York (2012): 312.
4. Baevskii RM., et al. “The assessment of health status of healthy people, working under conditions of prolonged exposure to stress factors”. Methodological guide for the use of hardware and software complex”. “Ekosans-TM”, Moscow, SLOCVO, (2014): 144.
5. Nakamura S and Chichibu S. “Introduction to Nitrate Semiconductor Blue Lasers and Light Enitting Diodes”. CRC Press 1 (2000): 386.
6. Joodly BF., et al. “Blue light induces mitochondrial DNA damage and free radical production in epithelial cells”. Journal of Biological Chemistry 20 (2005): 21061-21067.
7. Sparrow JB., et al. “The lipofuscin fluorophore A2E Mediates blue light-induced damage to retinal pigment epithelial cells”. Investigative Opthalmology and Visual Science 41 (2001): 1981-1989.
8. Figueigo MJ and Rea MS. “Clinical study short-wavelength light enhances cotrisol awakening response in sleep-restricted adolescents”. International Journal of Endocrinology 30 (2012): 1935.
9. Tskhvediani N., et al. “Kinetics of photoinduced free radicals in brown color human hair during a short-term exposure to red, green, blue and white colors”. Georgian Medical News 4 (2016): 94-98.

Citation

Citation: Vakhtang Shoshiashvili., et al. “The Study of Impact of Incandescent and White Color LED Electric Lamps on the Functional Condition of Ocular Surface and Autonomic Regulatory Mechanisms”.Acta Scientific Medical Sciences 8.9 (2024): 03-07.

Copyright

Copyright: © 2024 Vakhtang Shoshiashvili., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.