1) Pupillometer 
(kor″e-om´ә-tәr) pupillometer.
coreometer 1. An instrument for measuring the pupils of the eyes. 2. A device to measure pupil diameter. Related references to 'eye' or 'eye part' word families: blepharo-; corneo-; lenti-, lens-; lenticulo-; irido-; ocelli-; oculo-; op-, -optic; opo-; ophthalmo-; phaco...