Red eye is caused by inflammation of superficial blood vessels in conjunctiva. Conjunctivitis and subconjunctival hemorrhage are common but less serious causes. Management includes assessing need for emergency care or treatment
Conjunctivitis is inflammation of the conjunctiva with dilated vessels and discharge. Disease prevalence varies by cause and season. Can be infectious or noninfectious
About 21 million Americans have vision problems in 2020. Many eye conditions are benign but can lead to blindness. Regular eye screenings are crucial for early detection
Conjunctiva is a thin clear tissue lining eyelid and covering eye white. Contains goblet cells for mucus production and stratified squamous epithelium. Forms tear film with three layers: mucus, watery, and oily. Protects eye from infections and foreign bodies
Adenoviral conjunctivitis is viral inflammation of the eye's conjunctiva. Highly contagious through hand-to-eye contact and contaminated objects. Symptoms typically last 7-10 days without treatment
Red eyes occur when blood vessels near the eye surface become swollen. Contact lens wear, poor hygiene, and prolonged wear can irritate eyes. Computer vision syndrome causes dry eyes from reduced blinking. Lack of sleep increases blood and fluid around eyes. Alcohol and cannabis can cause vasodilation and eye redness