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Evaluation of the Level of Transmission of Solar Radiation by Eyeglasses (Spectacles) and its Effects on the Human Eye

Author

Listed:
  • Safiyanu Abdulrahim
  • Yusuf Musa Abubakar
  • Bello Idris Tijjani

Abstract

Global atmospheric changes such as depletion of Ozone in the stratosphere and global warming contribute to the average increase of ultraviolet radiation on earth. Protective eyeglasses are normally recommended to safeguard the eyes from the harmful effects of solar radiation. In this paper, twenty (20) pairs of eyeglasses were selected based on systematic random sampling to determine the amount of optical radiation transmission and level of attenuation by eyeglasses, in the wavelength range of 200nm to 900nm using 6405 UV/VIS spectrophotometer. All the eyeglasses were found to transmit a substantial amount of ultraviolet radiation. The transmission of visible light depends on the lens colours. It was discovered that the eyeglasses do not provide complete protection from UV radiation. This shows that the glasses can still pose great danger to human eyes.

Suggested Citation

  • Safiyanu Abdulrahim & Yusuf Musa Abubakar & Bello Idris Tijjani, 2015. "Evaluation of the Level of Transmission of Solar Radiation by Eyeglasses (Spectacles) and its Effects on the Human Eye," Journal of Asian Scientific Research, Asian Economic and Social Society, vol. 5(10), pages 489-498.
    • Handle: RePEc:asi:joasrj:v:5:y:2015:i:10:p:489-498:id:3748
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