An instrument to measure the blood pressure in the retinal vessels. ... Origin: ophthalmo-+ G. Dynamis, power, + metron, measure ... (05 Mar 2000) ... 
Type: Term Pronunciation: of-thal′mō-dī′nă-mom′ĕ-tĕr Definitions: 1. An instrument to measure the blood pressure in the retinal vessels.
a device for measuring the blood pressure of the retinal blood vessels. · a device for determining the nearest point of ocular convergence.