Human eyes have receptors that contain a photopigment called melanopsin that is sensitive to blue light.
Side effects of blue light from computer.
Before the technological age blue light primarily came from sunlight.
Many eye care providers are concerned that the added blue light exposure from computer screens smartphones and other digital devices might increase a person s risk of macular degeneration later in life.
Effects of blue light and sleep while light of any kind can suppress the secretion of melatonin blue light at night does so more powerfully.
Exposure to blue light is detected by the eyes and signals the pineal gland to suppress the secretion of the hormone.
Harvard researchers and their colleagues conducted an experiment comparing the effects of 6 5 hours of exposure to blue light to exposure to green light of comparable brightness.
But too much blue light late at night reading a novel on a tablet computer or e reader at bedtime for example can disrupt this cycle potentially causing sleepless nights and daytime fatigue.
Early research shows that too much exposure to blue light could lead to.
Blue light filters and protective eyewear.
More research is needed though to determine how much natural and man made blue light is too much blue light for the retina.
Parts of the eye.
This light may affect vision and could prematurely age the eyes.
Blue light and the circadian rhythm.
The organization says blue light from digital devices does not lead to eye disease and doesn t even cause eyestrain.
Fatigue dry eyes bad lighting or how you sit in front of the.