Keisha suffered a corneal abrasion on one eye after she fell asleep with her contact lenses in place. When she asked her physician what to expect from her injury, the physician told her that

a. she would no longer be able to see from that eye.
b. she would need painkillers, as the cornea has a high density of pain receptors.
c. she wouldn't need any pain medication, because the cornea lacks pain reception.
d. her binocular depth perception would no longer function normally.