Sunglasses have become a very important accessory for our daily attire. Fashion street shooting, hip hop fun, outdoor sports, seaside vacation, and various occasions are very important. But there are some people who are not necessarily able to wear them freely.
First: children under 6 years old
All body organs of children under 6 years of age are not yet fully developed. At this time, wearing may affect visual clarity and cause mild amblyopia.
You may think that the belt is designed to protect the eyes and the darker the color. At this time, the pupil will become larger due to the lens blocking, so that the luminous flux entering the eye will increase. However, because its UV projection ratio is higher than that of visible light, it can cause serious damage to children's eyes, leading to diseases such as keratitis and cataract.
For children's health, try to wear the child after 7 years old, and when choosing the color of the lens, the depth of the pupil color can be seen by the transparent lens, and the wearing time should not be too long.
Second: glaucoma patients
Glaucoma is a group of diseases characterized by atrophy and sag of the optic papilla, visual field defects and decreased visual acuity. Pathological increase of intraocular pressure and insufficient blood supply to the optic nerve are the primary risk factors for the onset of the optic nerve. The tolerance of the optic nerve to pressure damage is also The occurrence and development of glaucoma is related.
People with glaucoma need strong light, and when they wear glasses, the light is reduced, the pupils are enlarged, the intraocular pressure is increased, and the eyes are very dangerous.
Third: color blindness / color weakness
It is a congenital color vision disorder, patients usually can not distinguish between various colors or a certain color in the natural spectrum, while the color weakness and color blindness are similarly different, the ability to recognize color is slow. And wearing glasses is undoubtedly a burden on the patient, making it more difficult to identify colors.
Fourth: night blindness
Night blindness means the symptoms of difficulty in the daytime in dimly lit environments or at night when the objects are unclear or completely invisible. Wearing sunglasses, the light is weak, causing vision loss.