• Viral Conjunctivitus

    Viral Conjunctivitus

    Bloodshot eyes of a 34-year-old woman with viral conjunctivitis. Viral conjunctivitis can spread rapidly in a population, causing an epidemic. It can be triggered by a cold, sore throat, or another viral illness. There is no specific cure, and it usually clears up without treatment.

  • Allergic conjunctivitis

    Allergic conjunctivitis

    A 5-year-old boy with inflammation around the eyes due to an allergic reaction. Allergic conjunctivitis is common, and can be triggered by factors such as cosmetics, contact lens solution or pollen. Treatment includes avoiding any known cause and using antihistamine eye drops to relieve the symptoms.

  • Bacterial conjunctivitis

    Bacterial conjunctivitis

    One-year-old boy with pus around his red, swollen eyes. These symptoms are characteristic of bacterial conjuntivitis, by pathogens such as Staphylococcus and Streptococcus. This condition can be very painful and is highly infectious and is usually treated with antibiotic eye drops or ointments.

  • Purulent conjunctivitis

    Purulent conjunctivitis

    Acute purulent conjunctivitis caused by Haemophilus influenzae.

  • Chronic conjunctivitis

    Chronic conjunctivitis

    Chronic conjunctivitis in an elderly patient caused by ectropion. Ectropion occurs when the eyelid turns out exposing its inner surface. Ectropion is caused by a loss of tissue elasticity and weakness in the muscles surrounding the eye, usually due to old age. Treatment includes minor surgery to tighten the eyelid.

  • Treatment


    Antibiotic or antihistamine eye drops can be used to treat infections and allergies.

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Conjunctivitis is inflammation of the conjunctiva, the transparent membrane that covers the eye and lines the eyelids. It causes redness, irritation, itching and a discharge from the affected eye. The most common causes are infection and allergy. Bacteria or viruses spread by hand-to-eye contact are the primary mode of transmission.

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