| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 1,822,546,610 visitors served. |
|
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
tonometer |
Also found in: Dictionary/thesaurus, Medical, Wikipedia | 0.06 sec. |
|
tonometer [tō′näm·əd·ər] (medicine) An electronic instrument that measures hydrostatic pressure within the eye: when placed in position, a tiny movable plate is pressed against the eye, flattening a circular section of the cornea (no eyeball anesthesia is required); a current is then sent through a small electromagnet, of such value that it will just pull the plate away from the eye; the value of the current is proportional to eye pressure; a measurement can be made in about 1 second; used in diagnosis of glaucoma. Also known as electronic tonometer. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
|
| ? Mentioned in | ? References in periodicals archive | |
|---|---|---|
an eye chart test to evaluate your distance vision; a tonometer test, in which a special instrument is used to measure the pressure inside your eye; and a visual field test to measure your side, or peripheral, vision (loss of peripheral vision is a sign of glaucoma). Firmness of breast tissue has been investigated during lactation using a digital tonometer. TX-F Full Auto Tonometer - Using innovative Canon Full Automatic technology, and its 3D tracking system, the TX-F Tonometer allows doctors to perform simple eye exams efficiently and reliably. |
| Encyclopedia |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup | Partner with us |
|---|