Why can eyeball blood vessel rupture?

summary

Rupture of eyeball capillaries is also called "subconjunctival hemorrhage" in clinic. There is a layer of conjunctiva on the surface of our eyeball. There are many capillaries distributed on it. Ordinary people don't care about it very much. The red blood in the eyeball is the reaction of capillaries after staying up late. The so-called "eyeball capillary rupture" is the rupture and bleeding of these capillaries under the stimulation and compression of external force. Why can eyeball blood vessel rupture? Let's talk about it

Why can eyeball blood vessel rupture?

Systemic vascular diseases and blood diseases, such as hypertension, diabetes and other retinopathy; Inflammatory diseases or immune complex invasion of vascular wall, such as retinal phlebitis, optic disc vasculitis caused by fundus hemorrhage; Mechanical obstruction, such as thrombosis, etc; Many different causes lead to the same pathological damage, such as retinal hemorrhage, exudation, microangioma, neovascularization and so on.

Of course, overwork and high intracranial pressure can also lead to capillary rupture in the eyes Dr. Wang said that in the eye clinic, he often encountered patients with red eyes but not itchy, but after the examination, generally did not find the above four cases, mostly subconjunctival microvascular bleeding, "it is not a serious disease, and it will not cause great damage to the eyes and vision."

"Subconjunctival hemorrhage is mainly caused by the rupture of microvessels under the conjunctiva. Due to the external pressure of conjunctiva and the coagulation reaction, the amount of bleeding is usually not much, but the color is bright red, which looks more frightening. However, patients often do not feel abnormal. Only a few people will feel swollen and uncomfortable when the whole white eyeball is covered by blood clots due to the large amount of bleeding, and a few people will feel swollen and uncomfortable before the conjunctival microvascular rupture and bleeding, I feel sharp in my eyes

matters needing attention

Just bleeding when you can first use a cold towel, cold compress when gently pressurized 1 ~ 2 minutes, mainly to prevent further bleeding. Do not apply hot compress when bleeding, otherwise it will cause vasodilation and increase bleeding. Wait until after a few days can be appropriate hot compress, promote absorption.