A woman diagnosed with multiple sclerosis is disturbed with diplopia.

(A) Limiting activities requiring close vision will not alleviate the discomfort of double vision. (B) Frequent naps may be comforting, but they will not prevent double vision. (C) Artificial tears are necessary in the absence of a corneal reflex, but they have no effect on diplopia. (D) An eye patch over either eye will eliminate the effects of double vision during the time the eye patch is worn. An eye patch is safe for a person with an intact corneal reflex.