Symptoms of ocular trauma

summary

Eye trauma is a kind of disease that can easily cause some sequelae. In daily life, eye trauma caused by some chemicals can easily cause people's blindness or conjunctivitis. This is because some chemicals can directly contact people's eyes, There are some eye trauma can also lead to sympathetic ophthalmia in people's body, these sequelae, with eye trauma, people should not delay, should be treated in time to avoid sequelae. Let's talk about the symptoms of eye trauma.

Symptoms of ocular trauma

Acute stage: several seconds to 24 hours after burn. In general, alkaline substances can penetrate the cornea and enter the anterior chamber within a few minutes after injury. The manifestations were necrosis and exfoliation of cornea and conjunctival epithelium, conjunctival edema and ischemia, edema and opacity of corneal stroma, extensive thrombosis and hemorrhage of limbal and nearby blood vessels. May even have the acute iritis, as well as the anterior chamber appears the massive flocculent exudation. The cornea of the patients with severe alkali burn was porcelain white, and they could not see the tissue in the eye. Due to the ischemic necrosis of iris and ciliary body, the secretion of aqueous humor decreased, and the intraocular pressure decreased significantly.

Repair period: corneal epithelium began to regenerate from 5 to 7 days to 2 weeks after injury, new blood vessels gradually invaded the cornea, iritis tended to be static. In addition to some rays, the sunlight also contains a lot of infrared rays. If people watch for a long time, they are also prone to suffer from eye injury. Don't watch the sun to prevent eye injury.

Complication stage: in 2-3 weeks after burn, there are often repeated and persistent aseptic corneal ulcer, leading to corneal perforation. After the necrotic tissue of the blepharon conjunctiva falls off, it will produce scar healing, form shrinkage, shorten or disappear the fornix, symblepharon or form corneal leukoplakia, meat like pannus, or even eye atresia, develop into xerophthalmia, uveitis, cataract, glaucoma or eye atrophy. What's more, some sulfuric acid, hydrochloric acid or strong alkali that people encounter in chemical experiments should be kept properly. These articles are corrosive to a certain extent. If they touch people's eyes, they are easy to cause tears.

matters needing attention

If people's eye injury is caused by lime, they should not use acid to neutralize it. If they are treated with this kind of thing, it is easy to affect people's vision. In ocular chemical injury, alkali burn develops rapidly, has long course of disease, many complications and poor prognosis.