Viral conjunctivitis represent 15% of all conjunctivitis. They may leak mild or severe, and sometimes tend to become chronic and recurrent. Adenoviral conjunctivitis are most common and are caused by about 51 human adenovirals and 70% affect both eyes. The incubation period is 7-14 days, the disease begins with tearing, redness, feeling of glozhdene, photophobia, itching and swelling of the eyelids. objectively detect edema, hyperemia and small petechial hemorrhage. There may be a reaction from the lymph nodes in the ears and the lower jaw. About two weeks of disease onset can occur numerous subepiteliani infiltrates cornea. The disease can dveelop in a few days or even months
Acute hemorrhagic conjunctivitis epidemic is caused by enterovirus 70 and Coxackie virus A24. This disease is highly contagious and is transmitted by domestic or industrial road, and by the hands or tools of staff in outpatient eye. The incubation period is 12-48 hours, observing picture acute follicular conjunctivitis with serous or purulent serous secretion. On the second day appear punctate or more extensive hemorrhage in bulb conjunctiva (it is located right on the eyeball) While awaiting the day conjunctivitis cover other eye. The body temperature may rise and occur pinpoint, surface infiltration of cornea. The treatment occurs within 8-12 days.
Membranous conjunctivitis in some cases has acute conjunctivitis secretion may be rich in fibrin and fibrin formed on the conjunctival membrane. This membrane may be pseudomembranes (when removed easily and underneath the epithelium is not damaged, nor bleeds) or a true membrane (when connate with epithelium and remove the hard and can not penetrate into the underlying layers of the epithelium). Such conjunctivitis severe and most commonly are caused by the influence Haemophilus, Streptococcus pyogenes, and Corynebacterium diphteriae. In diphtheria conjunctivitis true form membranes. It is increasingly rare disease due to mandatory immunization in children. This type of conjunctivitis may be carried out in parallel with diphtheria nasal, nasopharynx, and pharynx.
Most often ill children of 1-4 years of age. The course can be acute, subacute or very severe, as complaints are swelling, redness, pain and thickening of the eyelids. The general condition is impaired and the child is fever and enlarged regional lymph nodes. Secretion is initially cloudy, but later became fibrinous, with deposition of dirty gray membranes. Because they are highly adherent to the underlying epithelium, in an attempt to remove remains a bleeding surface. After time and necrotic conjunctival membranes dropped as the secretion becomes purulent. 2-3 weeks the inflammation passes with scarring.