That to be a major cause presbyopia, abuse one's eyes that I like.
In correcting presbyopia is becoming important not tired eyes for it.
Meanwhile, it is the "Blue Light" to hear what is not good in the eyes as well.
It is not an exaggeration to say that the blue light to measure this, and have led to presbyopia correction.
Also referred to as blue light, it does not mean that a pale light and clearly visible to the eye.
And there are things which are not seen in the light we see, it is assumed that visible.
What amount of energy emitted in the visible light is most intense, blue light is a blue light that would reach the retina.
It is said that the strength of the energy can be expressed in nanometers, and blue light from 380 nanometers to about 495 nanometers.
The reason why now heard of blue light so much, because there is an increasing penetration of smartphones, such as personal computers and mobile phones.
Blue light is emitted from the screen which are those of I will be in the face while the screen is fed into the eye.
As to whether an impact is not good in the eyes and continue to receive how much blue light, it is not a long enough time, they apply to everyone.
In daily life, in particular people who use computers and smartphones for more than one hour meter is to measure and Blue Light.
It is also important to think about with the previous method of correcting presbyopia presbyopia begins, improve the environment burdening the eye, protect the health of the eye.
