Conjunctivitis is the collective name for the inflammatory response that occurs in the conjunctiva tissue in response to external factors and the body's own factors. Although conjunctivitis itself does not have a significant effect on vision, it can cause visual impairment when the inflammation affects the cornea or causes complications. According to the condition and course of conjunctivitis, it can be divided into acute, subacute and chronic categories; according to the cause can be divided into bacterial, viral, chlamydial, fungal and allergic; according to the conjunctival lesions, can Divided into acute follicular conjunctivitis, chronic follicular conjunctivitis, membranous and pseudomembranous conjunctivitis.

Clinical manifestations of conjunctivitis:

Acute bacterial conjunctivitis can have an incubation period of 1 to 3 days, and viral growth can be as long as 5 to 12 days. The main performance is:

1. Self-conscious eye itch, burning sensation, foreign body sensation. If you invade the cornea, you feel pain. Fear of light, tears.

2. Sputum, bulbar conjunctival hyperemia, conjunctival hyperemia and congestive significantly, pay attention to the identification of ciliary hyperemia, so as not to misdiagnosis.

3. Increased secretions. Bacterial inflammation is mostly mucinous or mucopurulent secretions, which can adhere to the tendon and eyelashes. Viral inflammatory secretions are mostly watery or foamy and sometimes form pseudomembranes.

4. In patients with acute inflammation, conjunctival edema, hemorrhage, and even eyelid swelling can occur.

5. Long-term chronic inflammation can occur papillary hyperplasia, follicular formation, conjunctival epithelial tissue proliferation, nipple hypertrophy.

6. Viral conjunctivitis can also cause preauricular lymphadenopathy and can invade the cornea to form ulcers.

treatment

1. Local treatment

(1) Rinse the conjunctival sac. Its function is mainly clean. Normally, it is physiological saline, 2% to 3% shed acid solution or 1:5000 to 1:10000 liters of mercury (or potassium permanganate) solution.

(2) Do not cover the affected eye because of conjunctivitis secretion, if the affected eye cover, secretions are not easy to discharge, and pooled in the conjunctival sac; and cover the conjunctival sac temperature will increase, more conducive to bacteria Propagation increases conjunctivitis.

(3) topical antibiotics or antiviral eye drops According to etiological diagnosis, select the appropriate treatment drugs. Commonly used 0.5% ~ 1% silver nitrate, eye drops when the eye drops, the eye drops on the palpebral conjunctiva, eye drops after a moment to stop, that is, rinse with saline. Or use a cotton swab dipped in a small amount of liquid, applied to the conjunctiva surface, then rinse with saline.

2. Systemic treatment

For severe conjunctivitis, such as gonococcal conjunctivitis, trachoma, etc., need to be combined with systemic medication.

prevention

Conjunctivitis is mostly contagious, so it is recommended to wash your hands frequently to avoid rubbing your eyes. Promote water wash, towels, handkerchiefs and other items to be separated from others, and often cleaning and disinfection. Patients with contagious conjunctivitis should take certain isolation measures and do not allow swimming in public swimming areas. If you have conjunctivitis at a glance, you must tell the patient to protect the healthy eye from infection. Where the working environment is windy, dusty and other irritants, the environment should be improved and protective glasses should be worn to prevent conjunctivitis.

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