applanation

ap·pla·na·tion

(ap'lan-ā'shŭn),
In tonometry, the flattening of the cornea by pressure. Intraocular pressure is directly proportional to external pressure, and inversely proportional to the area flattened.
See also: applanation tonometer.
[L. ad, toward, + planum, plane]

applanation

/ap·pla·na·tion/ (ap″lah-na´shun) undue flatness, as of the cornea.

ap·pla·na·tion

(ap'lă-nā'shŭn)
tonometry The flattening of the cornea by pressure. Intraocular pressure is directly proportional to external pressure, and inversely proportional to the area flattened.
See also: applanation tonometer
[L. ad, toward, + planum, plane]

applanation

(ap″lă-nā′shŏn) [L. applanare, to flatten]
Flattening, esp. of the corneal surface.
applanate (ap′lă-nāt″, a-plā′nāt″)
References in periodicals archive ?
Tenders are invited for Supply Of Equipments & Furniture To Ayurveda Medical College, Mysore, Slit lamp microscope with all Standard accessories, applanation tonometer, Munihalogen Light (table mounting ) , Distillation equipments , Keileis Ophthalmoscope, Hand held rotatory (Near Vision ) Drum, Weighing Scale, Stethoscope, Computer Printer (Laser), Test tubes with stand Holder, Mortar pestle (ceramic & Stone), Blades
The Goldmann applanation tonometer (GAT) remains the gold standard for IOP measurement, but there are so many patients, you just can't get on a chin rest.
Shabbir Kapasi wrote in his thank you note: "Old age people normally have dry eyes, poor tear film quality, where there is a risk of corneal damage with schiotz tonometry and applanation tonometry needs use of lots of fluorescein dye because it dries up fast.
Tear production was measured by modified Schirmer tear test I (n = 9 birds) or phenol red thread test (n = 8 birds), and intraocular pressure was measured indirectly by applanation (Tonopen-XL) (n = 9 birds) or rebound (TonoVet) (n = 8 birds) tonometry.
The carotid-femoral PWV was noninvasively assessed using the SphygmoCor system (AtCor Medical Pty Ltd, West Ryde, Sydney, Australia) with applanation tonometry.
The most commonly used tonometer is the Goldmann Applanation tonometer (Fig.
2008) Maternal wave reflections and arterial stiffness in normal pregnancy as assessed by applanation tonometry.
All patients underwent a routine pre-operative assessment, with measurement of visual acuity, dilated slit-lamp examination of the anterior segment, measurement of the intra-ocular pressure by Goldmann applanation tonometry, A-scan biometry, and fundus examination with either a 90-dioptre lens and indirect ophthalmoscope or B-scan ultrasound.
Applanation tonometry of the radial artery, guided by visual inspection of the pulse pressure (PP) wave from and by a built-in quality score 0f the homogeneity of the observed waveforms, was conducted to record 10 sec of sequential peripheral pulse waveforms.
In sections on basics and accurate biometry, and formulas and special circumstances, he discusses such matters as immersion versus applanation ultrasound, automated keratometry for IOL power calculation, personalizing formulas, post-laser refractive surgery eyes, and preventing IOL power errors.
The Perkins Mk3, like its predecessors, can use either reusable Goldmann tonometer prisms or Tonosafe disposable applanation prisms to minimise the risk of patient cross-contamination whilst the easy-to-use "Tonogrip" prism holder allows for straightforward placement of sterilised prisms, providing safety and accuracy on contact.