A 23-year-old man presents with visual loss in the right eye, diagnosed as optic neuritis. Which one of the following statements would be seen in an afferent pupillary defect?
Do you know the answer?
1) accommodation response is unaffected
2) hypersensitive response to pilocarpine in the affected eye
3) irregular pupil of the affected eye
4) pupil of affected eye larger than the unaffected eye
5) pupil of affected eye smaller than the unaffected eye