Postural change in intraocular pressure: a comparison of measurement with a Goldmann tonometer
, Tonopen XL, pneumatonometer,and HA-2.
In the early 1970s, American ophthalmologist, Hampson Sisler, modified a Goldmann tonometer
to perform ODM.
The planned purchase: 1 purchase items - mammographic X-ray image digitizing equipment - 1 set .; 2 purchase Items - Trial Lens Set with pilot frame - 1 pc .; 3 purchase items - Oftalmologiniiu Toolkits - 5 compl .; 4 purchase items - vital functions monitor - 1 set .; 5 purchase items - Goldmann tonometer
type - 1 pc .; 6 purchase items - Video camera with monitor - 1 pc.
In order to overcome the problem of the postoperative IOP underestimation with the Goldmann tonometer
, some authors suggest that the measurement (in myopic eyes) is done in the periphery of the cornea where less corneal tissue is removed.
New Tonopen XL: comparison with the Goldmann tonometer
. Eye (Lond).
Some studies comparing the Tono-Pen XL[R] tonometer with other tonometers, such as the Perkins[R] and TonoVet[R] tonometers in rabbits (KALESNYKAS & UUSITALO, 2007) and the Goldmann tonometer
in humans (FRENKEL et al., 1988; IESTER et al., 2001) suggested a lower accuracy of the Tono-Pen XL[R] tonometer for high IOP values.
The Perkins series of hand-held tonometers have been providing generations of Ophthalmologists and Optometrists Worldwide with reliable measurements that correlate strongly with the industry gold-standard Haag-Streit Goldmann tonometer
Previous studies have shown that intraocular pressure (IOP), as measured by the Goldmann tonometer
, needs to be corrected according to central corneal thickness (CCT) values in order to obtain a better IOP estimate (1-8).
Results obtained by NCT using the Pulsair instrument were then compared within those obtained using the Goldmann tonometer
in each of the 50 patients tested to determine the sensitivity, specificity, and positive and negative predictive value of NCT as a screening tool for glaucoma.
* Be able to set up and use a Goldmann tonometer
and interpret the results (Group 3.1.6)
Comparison of the Tono-Pen and Goldmann tonometer
for measuring intraocular pressure in patients with glaucoma.
16 ea haag-streit r-900 goldmann tonometer
with tonometer mount, 1 ea freight/inside delivery, 1 ea installation charge.