To begin with, you need to have an idea of how the eye is arranged - its front and back surfaces are covered with a transparent film - conjunctiva. It creates a protective barrier against small foreign bodies and microorganisms. The word conjunctivitis is called the common name for a whole group of inflammatory conditions of the conjunctiva that are common in children and adults.
Doctors say that the cause of inflammation of the conjunctiva may be the ingestion of bacterial (staphylococci, streptococcus, gonococcus, etc.), chlamydial, viral or fungal infections. How do these infections still get in the eye? Simply - even when a person triples his eyes with dirty hands, he bathe in the contaminated reservoir or uses overdue cosmetics (more often - an ink). Also, infections can penetrate the eye through the blood - for example, with acute respiratory viral infections, measles, windmill, allergies.
Also read: Tobrex with conjunctivitis
Consequently, allergic conjunctivitis results from the action of a stimulus such as pollen, smoke, dust or chemicals. Also, allergic conjunctivitis may cause certain drugs; Non-compliance with the rules of using contact lenses; Fatigue and overcooling of the eyes.
Acute conjunctivitis occurs suddenly and proceeds actively - when it expands, and sometimes the small blood vessels burst, the eyes become red, forever swollen. Patients complain of pain and burning in the eye - by their description, there is a feeling that they have poured sand into their eyes. Eyes blush, tears flow from them or purulent discharge appear. And there may be weakness, headache and fever.
Chronic conjunctivitis develops slowly, it proceeds rather sluggish and often affects both eyes simultaneously. This type of eye disease is most common in adults. Its causes - the long-term effects of various stimuli: smoke, dust, chemical impurities in the air. Also, chronic conjunctivitis may occur with avitaminosis, metabolic disorders, chronic nasal irritations and sore throats.
Doctors say that chronic conjunctivitis is accompanied by itching, burning sensation, "sand-by-age", photophobia, eye fatigue. And it can take this disease for many months.