EFFECTS OF BLUE LIGHT ON HUMAN BODY

Hritika Sharma*, Anant D. Patil and Tanusri Tetarbe

ABSTRACT

Blue light (415-455nm) is among the shortest and highest energy wavelength in the spectrum of visible light. The blue light or the high energy visible wavelength flicker more, creating a glare, reducing the visual contrast and ultimately affecting the sharpness and clarity; this flickering and glaring is often accompanied by eyestrain, headaches, sleeplessness, physical and mental fatigue. Digital eye strain is one of the leading computer-associated complaint, also an emerging medical issue which affects the learning and hampers the productivity of a person. Digital eyestrain has affected individuals of all age group. With the growing use of digital devices, it is important to regulate or limit the screen time, especially in the trending times of social media. The symptoms of digital eye strain include hazy vision, difficulty in focusing, dry eyes, irritation in the eyes, headache, neck pain and back pain. There is growing medical evidence that suggests excessive exposure to blue light may cause permanent eye damage.

Keywords: Blue Light, Electromagnetic Spectrum, Digital Eye Strain, Circadian Rhythm, Melatonin.