This is a test of commonsense. Complete the next sentence:

How to test peripheral vision
Start with a simple confrontational visual field exam.
For this peripheral vision test, your eye doctor will sit right across from you and ask you to cover one eye. You'll be asked to stare straight ahead while they slowly bring one of their hands from one side into your peripheral vision.
Say " ok " or " i see it " when you detect their hand moving. This is a standard test during most eye exams.