Is Blue Light Good For Night Vision

Human eyes have receptors that contain a photopigment called melanopsin that is sensitive to blue light.

Is blue light good for night vision.

The eye is not very good at blocking blue light. The higher degree of scattering of these rays is what makes a cloudless sky look blue. Hev blue light rays make the sky look blue. Too much exposure to blue light late at night through smart phones tablets and computers can disturb the wake and sleep cycle leading to problems sleeping and daytime tiredness.

Biological night vision or scotopic vision your vision under low light conditions is a topic that has a wide array of information out there. Blue light and the circadian rhythm. However as it turns out green light or blue green offers some advantages over red as a means to retain night vision capability. What i d like to do in this article is not only attempt to clear up some misconceptions of what aids in better biological night vision but offer some methods of preserving your night vision.

The older style of blue light glasses that come with yellow lenses do assist with night driving since they also filter out lower energy harmless visible blue light hence clearer vision at night as well as some of the harmful high energy blue light. Researchers agree that blue light from led devices like your smartphone or. High energy blue light rays scatter more easily than other visible light rays when they strike air and water molecules in the atmosphere. Recently there has been a move to green and blue green light precipitated in large part by the military s change to green which itself has been primarily motivated by the increased use of night.

Trying to get some sleep. Effects of blue light on the circadian system and eye physiology international society for chronobiology. Not enough exposure to sunlight in children could affect the growth and development of the eyes and vision. A red light has been the traditional choice for retaining your night vision since before wwii when the military settled on red as the best choice.

Another argument in favor of blue light glasses is that they help you sleep better at night. Amber lenses to block blue light and improve sleep. Before the technological age blue light primarily came from sunlight. This has a more significant effect on night vision retention than does the choice of red or green.