what are the causes of conjunctivitis and conjunctivitis
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Etiology of conjunctivitis
Etiology of conjunctivitis
Changes such as conjunctival congestion, exudation, nipple hypertrophy and follicular formation caused by infection, allergy and trauma. The reasons can be divided into: ① exogenous. Because of conjunctiva exposed, easy to be stimulated by various external microorganisms, dust, physical and chemical poisons, etc., inflammation occurs. ② Endogenous. Pathogenic bacteria infect conjunctiva through blood or lymph, or have allergic reaction to infections elsewhere in the whole body. Inflammation can also spread directly from adjacent tissues. Conjunctivitis can be divided into bacterial, viral, chlamydia, fungal and allergic according to its etiology. Their common clinical manifestations are sudden conjunctival congestion, burning sensation, itching, excessive secretion, and general vision is not affected. Examination shows redness and swelling of eyelid, conjunctival congestion of eyelid, hyperplasia of nipple follicles, peripheral congestion of bulbar conjunctiva, sometimes edema and subconjunctival hemorrhage, and secretion in conjunctival sac. To determine the source of disease, secretion smear should be performed for bacterial and cytological examination. Treatment should be based on the cause of local medication.
Conjunctivitis is an infectious eye disease caused by bacterial or viral infection. Whenever summer and autumn come, it is the epidemic season of this disease. Especially in some coastal cities, many people will suffer from acute conjunctivitis because the hot and humid weather is conducive to bacterial reproduction. Its onset is rapid and fierce. Once infected, men, women and children can get sick within a few hours. It can break out in a certain range and affect people's health. Traditional Chinese medicine calls it "red eye in heaven. People call it" pinkeye ". When the disease occurs, it has photophobia, tears, tingling and thin secretions. At the same time, the eyelids are swollen, and the conjunctiva turns red due to dilated blood vessels and bleeding. This is the origin of the name of pinkeye. If it is not treated in time, it will turn into chronic conjunctivitis.
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