| Perkins | Elisha, U.S. Physician, 1741-1799. See: perkinism. (05 Mar 2000) |
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| applanation tonometer | An instrument for determining ocular tension by application of a small flat disk to the cornea. (05 Mar 2000) |
| Mackay-Marg tonometer | A recording electronic applanation tonometer. (05 Mar 2000) |
| Gartner's tonometer | An apparatus for estimating the blood pressure by noting the force, expressed by the height of a column of mercury, needed to arrest pulsation in a finger encircled by a compressing ring. (05 Mar 2000) |
| Goldmann's applanation tonometer | An applanation tonometer that flattens only 3 sq mm of cornea, used with a slitlamp. (05 Mar 2000) |
| Mueller electronic tonometer | A Schiotz type tonometer that electronically indicates the extent of corneal indentation; may also have an attached recorder for continuous pressure readings (tonography). (05 Mar 2000) |
| pneumatic tonometer | A recording applanation tonometer operated by compressed gas. (05 Mar 2000) |
| Schiotz tonometer | An instrument that measures ocular tension by indicating the ease with which the cornea is indented. (05 Mar 2000) |
| tonometer | 1. <physics> An instrument for determining the rate of vibrations in tones. 2. <physiology> An apparatus for studying and registering the action of various fluids and drugs on the excised heart of lower animals. An instrument for measuring tension, especially. That of the eyeball. Origin: Gr. A stretching, a tone. Source: Websters Dictionary (01 Mar 1998) |