Do myopia and lamplight illumination have relation?

 Generally speaking, the onset reason of myopia is mainly congenital heredity and acquired environment two big categories, congenital heredity is the child that means parents high myopia cannot reach normal vision from childhood, and the day after tomorrow environment factor is to point to trauma, excessive use of eye myopia and so on. Among them, it is often easy to ignore the impact of light on vision, in fact, myopia and lighting also have a direct relationship.

 Too strong or too dark light is not conducive to protecting vision. When the light is too dark, the ciliary muscle is overtense and easy to fatigue, and when the light is too bright, the retina is easy to be burned, resulting in blurred vision and so on. Reading and learning in too strong or too dark light for a long time, the burden of eye adjustment will be relatively heavy, which will naturally lead to refractive error.

 And the common lamp in the family, such as incandescent lamp, LED lamp, high frequency eye protection lamp and so on, due to the use of 220V, 50 HZ AC, with the continuous change of voltage, the light intensity will also present periodic changes, the light will inevitably produce some periodic flashing, usually we call it stroboscopic phenomenon. This frequency strobe is not easy to detect with the naked eye, but it is real, if you use a camera against the lamp, you will see a high frequency of flicker.

 If the eyes are used in the strobe light, the ciliary muscle is constantly enlarged and contracting, always in a tense state of movement, will not only increase fatigue, resulting in immunity decline, but also may have sour, tears and even vertigo. In the long run, it is very easy to appear distraction, vision loss, pseudomyopia and even true myopia and other problems.

Although many people have recognized the importance of eye protection and actively wear glasses, the impact of lighting has not been fully emphasized. When choosing lamps and lanterns, must remember not to choose too bright, pure white or partial blue white light lamp, light yellow light is more conducive to protect vision. Buy unblinking eye protection lights as much as possible to avoid frequent flashing eye irritation and fatigue. When indoor illumination is not sufficient, need to use desk lamp, let the light maintain tilt Angle as far as possible, avoid light reflection directly into the eye.