Complex question.: This complex question is best answered by an Ophthalmologist (one who knows your condition & knows you best). In general, there are 2 types of perimeters (devices which measure visual fields). There are kinetic perimeters, like the frequency doubling machine, & the static perimeters (like the Goldman method, Humphrey machine, & Donder's test). If you can't see flickers, you do worse on kinetics.
Answered 4/4/2018
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