isopter

[ ī-sŏp′tər ]

n.

A curve of equal retinal sensitivity in the visual field designated by a fraction, the numerator being the diameter of the test object, and the denominator being the testing distance.

Words nearby isopter

isopropyl ether, isopropyl group, isopropylbenzene, isopropylideneacetone, isoproterenol, isopter, isopteran, isopterous, isopycnal, isopycnic, isopyre