Conjunctivitis: Causes and manifestations

Conjunctivitis: Causes and manifestations.  Photo from www.sciencephoto.com

The rear surface of the eyelids and the anterior part of the eye (up to the cornea) are covered with a thin transparent film — the conjunctiva. This film, First,secretes important components of tear fluid, andsecond creates a protective barrier against microorganisms and small foreign bodies.

Conjunctivitis— The general name for a group of inflammatory conditions of the conjunctiva. There are quite common, and with equal probability in children and adults.

Causes

Conjunctivitis can arise at:

  • Eye bacterial (Staphylococcus, Streptococcus, gonokki, etc.), chlamydia, viral, or fungal infection. The infection can get into the conjunctiva, when a man rubs his eyes with dirty hands, bathing in polluted water or use expired cosmetics (mascara). In addition, the infection may enter the eye through the blood — a variety of infectious diseases (eg, SARS, measles, chicken pox).
  • allergies. Allergic conjunctivitis may occur in response to kako or stimulus, such as pollen.
  • prolonged action of stimuli: smoke, dust, and chemicals;
  • exposure to ultraviolet radiation (including "snow blindness");
  • hypersensitivity to the drug;
  • non-observance of the rules of use contact lenses;
  • eye fatigue and colds;
  • farsightedness, nearsightedness and astigmatism;
  • vitamin deficiency, metabolic disorders;
  • chronic diseases of the nose and lacrimal system.

What's going on?

Conjunctivitis can be acute or chronic. Acute conjunctivitis appear suddenly and proceeds rapidly. At the same time expanding and sometimes burst small blood vessels, eyes turn red like a rabbit, eyelids swollen, there is discharge from the eye (depending on the pathogen, it can be as slimy and purulent, little or abundant).

Patients with acute conjunctivitis concerned about pain and a burning sensation in the eye (eyes), it seems to them that they poured the sand. The eyes become red, tears streaming from them, and sometimes pus, increased sensitivity to light. In addition, there may be weakness, headache and fever. Often, the disease affects one eye at first, but after a while the second one.

Distinguish bacterial, viral and allergic form of conjunctivitis. When bacterial form konnktivita usually become infected both eyes; diseaseaccompanied by copious mucus, and then the pus. Viral form usually affects one eye, and is accompanied by slight mucous secretions of the eye. Both of these forms of the disease is very contagious and easily transmitted by contact with the patient.

Children conjunctivitis often occurs simultaneously with the common cold and, as a rule, extends itself through the week. In adults, the disease can occur much harder.

Allergic conjunctivitis is accompanied by redness of the eyelids, burning and itching, poor transparent discharge. This may also occur rhinitis, cough, fever.

Chronic conjunctivitisdevelops gradually and stale most often affects both eyes at the same time. It occurs mainly in adults and is caused by long-acting stimulants: smoke, dust, chemical impurities in the air. It can also occur when vitamin deficiency, metabolic disorders, chronic lesions of the nose and lacrimal system.

Chronic conjunctivitis in itching, burning, "sand for centuries", photophobia, fatigue eye. The disease can occur for a long time.

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