A case in point extended.
No visual examination can be considered complete without visual field investigation. Garmizo suggests at least a hand confrontation, and Goodlaw urges a refinement of this procedure using a wand with a 3" by 3" background to a 3mm target. There is also a question of body clues to hand location when the hand is the target. This suggested procedure circumvents this by using a 6" to 8" long handle on the target.
D003463:Cues; D006801:Humans; D058609:Visual Field Tests / Q000295:instrumentation / Q000379:methods; D014794:Visual Fields