Frequently, some fine objects are blown into the eyes, such as gray tips, sand grains, coal dust, broken glass, cereals, flying insects, and pencil sawdust. These things are called foreign objects, and some of them are embedded in white eyes, called conjunctival foreign bodies, and some It is embedded in black and white, called corneal foreign body.
The cornea (black eye) of the eye feels very sensitive. When foreign matter enters the eye, it immediately causes pain, tears, and incompatibility. Due to rubbing the eyes sometimes scratch the cornea, even foreign objects embedded in the cornea is not easy to fall off, increase damage, affect vision. Because of dirty hands, bringing bacteria into the eye can cause inflammation.
The sand was blown into the eyes by the wind, and some people liked to wipe their eyes with their hands. This is very harmful.
Because people's eyes are like a compact camera, the cornea is like the thin glass in front of the lens. It is smooth, flat and translucent, allowing light to enter the eye. If gray sand gets in your eyes and rubs your eyes with your hands, the delicate cornea may be scratched by traces of hard sand. When you look at something later, it will be blurred. In addition, after the cornea is damaged, eye diseases such as keratitis are easily caused.
So what should I do? At ordinary times, our eyes are moistened by tears and maintain a moist state. Once the gray sand is in the eye and the eyeball is stimulated, tears will be extra secreted. When the flow of tears is high, we blink and we usually flush the sand to the side of the corner of the eye. Then we remove it with a clean handkerchief, and we can close our eyes and pull our eyelids up and down. Vibrate lightly to make the sand rinse out with tears.