The most common cause of eye redness is:
A. Conjunctivitis
B. Acute glaucoma
C. Head trauma
D. Corneal abrasion
ANS: A
The most common cause of eye redness is conjunctivitis (see Plate 38), which involves an inflammation of one or more areas of the conjunctiva. It is important to discriminate between allergic, viral, bacterial, and other causes of conjunctivitis in order to provide definitive treatment. Infectious conjunctivitis is usually caused by viral organisms, although bacterial infections are also common and can be secondary to viral infections. Allergies are the most frequent cause of noninfectious conjunctivitis. Other causes include chemical reactions.
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