Light plays an important role in how we receive and process any sensory information. Light impacts our visual experiences throughout our lives. The evidence of blue light existence in sun rays is the observance of blue sky. In the visible light spectrums, blue light has a higher energy than other wavelengths. Apart from natural blue light production from the sun, it can also be artificially produced. Blue light is also artificially produced indoors by the modern light-emitting diodes (LEDs) such as digital screens. They emit a high amount of blue light.
How blue light becomes harmful
Since it’s visible, blue light passes through the eye into the retina. With high energy than other wavelengths, blue light can be potentially harmful to the retina and induce various reactions such as photochemical lesions.
Interest in the blue light blocking glasses has increased over the years. Blue-blocking helps people to sleep well and easier at night while also reducing digital eyestrain. It is for this reason that people have come up with lenses that help protect against the harmful blue light. Blue blocker transition glasses filter the blue wavelength from entering into the eyes. They are able to filter and block the light coming from either a computer or phone’s screen (indoor blue light source) or directly from the sun (outdoor blue light source).
Blue blocker glasses increases visibility. They let in more light into the eye. This increases outdoor visibility experiences. Blue blocker transition glasses not only block blue light but also glare. For better sleep, you might also want to wear your blue blocker glasses in the evening. This helps the body to produce melatonin which makes you feel sleepy. Staring at screens at night without blue blocker glasses makes the brain sense and have a false day feeling. The overall effect is inhibition of melatonin production.