'Tonometry' definitions:

Definition of 'tonometry'

(from WordNet)
noun
The measurement of intraocular pressure by determining the amount of force needed to make a slight indentation in the cornea

Definition of 'Tonometry'

From: GCIDE
  • Tonometry \To*nom"e*try\, n. The act of measuring with a tonometer; specifically (Med.), measurement of tension, esp. the tension of the eyeball. [1913 Webster]