Cellphones, computers, games, TV...
Today, we live in an environment where we overwork our eyes, and there are many causes of stress, such as eye strain, stiff shoulders and headaches caused by the eyes.
In particular, the number of people who use computers for long hours at work, who complain of eye problems, seems to be increasing year by year.
The cause is blue light, which has a short wavelength.
Short-wavelength blue light causes glare and a decrease in contrast.
The human eye has a hard time perceiving the color blue, so we are letting in strong blue light without even realizing it.
Light that enters the eye is combined at the retina, but the distance differs slightly depending on the wavelength of the light.
This is called ``chromatic aberration.'' For example, when red light is focused on the retina, the shorter the wavelength (yellow, green, blue), the closer it is to the retina. This is one of the causes of "blurry".
Lenses that cut this short-wavelength blue light are on the market from various lens manufacturers.
(My personal guess is that the American patent has expired, so all the companies have released it. Maybe.)
● Your cell phone or computer screen feels too bright.
● Even though your glasses should have the correct prescription, signs and other objects look blurry.
● Eyes get tired easily
● Even on cloudy days, I feel glare.
If you have any ideas, I think it's worth giving a try.
