Also found in: Dictionary, Thesaurus, Acronyms, Encyclopedia.
an instrument for determining ocular tension by application of a small, flat disk to the cornea.
ap·pla·na·tion to·nom·e·ter(ap'lă-nā'shŭn tō-nom'ĕ-tĕr)
An instrument for determining ocular tension by application of a small, flat disc to the cornea.
A device for measuring intraocular pressure (IOP) indirectly. The IOP depends on the amount of pressure that is required to flatten a section of the cornea.Synonym: applanometer
See also: tonometer
an instrument for measuring tension or pressure, especially intraocular pressure.
measures the force required to flatten or applanate an area of cornea. Includes the MacKay-Marg, Halberg, Dräger and Goldmann tonometers.
measures the pressure required to indent the cornea; includes the Schiotz and pneumatonograph.