Halos and glare are due to scattered light rays. The scattering can occur on the surface of the eye (tear film, cornea edema) or inside the eye (cataract, vitreous opacity, etc.)

In darker environments the healthy pupil dilates and this can lead to a variety of optical aberrations that involve the periphery of the lens.

Bright lights, artificial lights, dim lights, sudden fluctuations of light, fine print, reading in moving vehicles, reading lying down, etc., have long been considered "bad for the eyes," and libraries of literature have been produced about their supposedly direful effects. These ideas are diametrically opposed to the truth. When the eyes are properly used, vision under adverse conditions not only does not injure them, but is an actual benefit, because a greater degree of relaxation is required to see under such conditions than under more favorable ones. It is true that the conditions in question may at first cause discomfort, even to persons with normal vision; but a careful study of the facts has demonstrated that only persons with imperfect sight suffer seriously from them, and that such persons, if they practice central fixation, quickly become accustomed to them and derive great benefit from them.

In my weekend training session for the night vision sharpness, I just correct your body posture and face expression; and the night vision sharpness ensues.

You discover the real physical nature of your body that makes you see clear instantly in the dim light conditions as well as solves your glare problem while seeing bright lights at night as a result of undergoing the night vision sharpness program.

The only thing left, then, is to turn this personal discovery into your spontaneity - of body and mind; and the instant night vision sharpness turns into the lasting night vision sharpness for life!