AN EXAM IS INDICATED IF YOU HAVE...
Blurry vision; trouble seeing at night; trouble seeing the lecture board; eyestrain with reading; eyestrain with computer use; double vision; eye turns: "cross-eyed"; itchy, gritty, burning sensation; dry eyes; problems with glare; systemic illness such as high blood pressure or diabetes; if you have never had an exam before.
OCULAR EMERGENCIES INCLUDE
Painful, red eye(s); injury to your eye(s); loss or reduction of vision; sudden increase in light sensitivity; flashes of light; a dramatic increase in floaters; a dark curtain/veil over your field of vision.