Signs and symptoms
... The most common signs and symptoms of pink eye include: Redness in one or both eyes Itchiness in one or both eyes Blurred vision and sensitivity to light A gritty feeling in one or both eyes A dischar...

Causes
... Viruses, bacteria or allergies can cause pink eye, but viruses are the most common cause. Newborns also may experience pink eye as the result of an incompletely opened tear duct. Viral and bacterial c...

Risk factors
... Exposure to an allergen for allergic conjunctivitis is a risk factor, as is exposure to someone infected with the viral or bacterial form of conjunctivitis. Both viral and bacterial conjunctivitis are...

When to seek medical advice
... Pink eye can be an irritating condition, but it''s usually harmless to sight and typically doesn''t require extensive or emergency treatment. Yet because pink eye can be highly contagious for as long ...

Screening and diagnosis
... Your doctor may take a sample of eye secretions from the conjunctiva for laboratory analysis to determine which form of infection you have and how best to treat it. If you have a young infant with rec...