It is a bright sunny day and you are treating a woman who fell off her bike. She is lying supine on the sidewalk. When you assess her pupils, you should:
A. use a very bright light that is similar to the environmental light
B. cover the patient's eyes for a few moments, then uncover one eye at a time
C. apply a cold towel to the patient's eyelids for 10 seconds
D. move the patient indoors to an area that has dimmer light
Answer: B