This visual field test is performed in a face to face position at an arms length distance. If there is a significant difference in visual acuity, start with the better seeing eye. The eye not being tested must be completely covered, eg patient occludes the eye with the palm of the hand.
There are many variations used when testing visual fields using confrontational techniques, but the majority initially rule out gross abnormalities before making the test more sensitive. An example of such a method is as follows: