Generally, after the age of 45, the glass will liquefy, and some liquefied parts will float in the vitreous cavity, so people will feel the flying insects flying in front of their eyes. Because floating animals make a mickle, they will be deposited under the eyeball under the action of gravity, so the shadows will become less or even disappear.

After the eyeball is subjected to external force or internal eye surgery (such as cataract), more black shadows will appear in the eye. If they don't affect life, you don't need to care too much. You usually eat more iodine-containing foods, such as kelp and seaweed. If there are many shadows, you can take some drugs orally, such as valitin. If there is a fixed and expanding shadow, go to the hospital to rule out whether there are eye diseases such as retinal detachment.

Extended data

Common vitreous opacity is mainly divided into several categories:

1. Traumatic vitreous opacity: ocular contusion and penetrating injury are often accompanied by intraocular bleeding, as well as intraocular foreign bodies and secondary infections, which also lead to opacity.

2. Hemorrhagic vitreous opacity: Blood vessels of retina and uvea rupture and bleed and accumulate in vitreous cavity, resulting in vitreous hemorrhage.

3. Glittering glass liquefaction: crystals can be seen in the glass body, which shows a sparkling appearance after illumination.

4. Vitreous degeneration and turbidity: With the increase of age, the vitreous body gradually deforms, showing condensation and liquefaction.

5. Stellate vitreous degeneration: There are countless white stellate bodies floating in the vitreous cavity.

People's Network-Are there always flying insects in front of you? Beware of vitreous opacity.