In-depth

Causes

 

Symptoms

Headache

Most headaches aren't caused by a serious illness, but some could be a sign of a life-threatening condition.

Watery eyes

Tearing that goes beyond a happy or sad moment can stem from a variety of causes, from hay fever to more serious conditions.

Tests and diagnosis

Eye exam

Eye exam — Overview covers definition, what to expect and results of vision testing.

Sep. 19, 2012

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