Results 201 to 210 of about 24,431 (229)
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Archives of Ophthalmology, 1956
The cornea receives a slight amount of trauma from tonometry. This is more readily observed when fluorescein is used in the eye and examination is made with the aid of a slit lamp. At first, the subject appears to be one of rather academic interest, as there seems to be no excuse for inflicting injury on the cornea with the tonometer.
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The cornea receives a slight amount of trauma from tonometry. This is more readily observed when fluorescein is used in the eye and examination is made with the aid of a slit lamp. At first, the subject appears to be one of rather academic interest, as there seems to be no excuse for inflicting injury on the cornea with the tonometer.
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Archives of Ophthalmology, 1983
Respiration and arterial pulse cause intraocular pressure to cyclically vary around a mean pressure. Both the respiratory and arterial pulse waves approximate sine waves, and we have represented the IOP cycle as the sum of sinusoidal pressure waves. A rapidly acting tonometer may record any portion of the IOP cycle.
R A, Moses, R J, Arnzen
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Respiration and arterial pulse cause intraocular pressure to cyclically vary around a mean pressure. Both the respiratory and arterial pulse waves approximate sine waves, and we have represented the IOP cycle as the sum of sinusoidal pressure waves. A rapidly acting tonometer may record any portion of the IOP cycle.
R A, Moses, R J, Arnzen
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Journal of the American Veterinary Medical Association, 1970
SUMMARY Indirect intraocular tonometry was performed on 6 horses, using an electronic tonometer,” with a topical anesthetic and a tranquilizer. Mean indirect intraocular pressure for these horses was 24.5 mm. Hg (S.D. = 4.0). Direct and indirect intraocular pressure values were also simultaneously recorded on 6 horses under general anesthesia and on 3 ...
C M, Cohen, D A, Reinke
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SUMMARY Indirect intraocular tonometry was performed on 6 horses, using an electronic tonometer,” with a topical anesthetic and a tranquilizer. Mean indirect intraocular pressure for these horses was 24.5 mm. Hg (S.D. = 4.0). Direct and indirect intraocular pressure values were also simultaneously recorded on 6 horses under general anesthesia and on 3 ...
C M, Cohen, D A, Reinke
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Airpuff tonometry versus applanation tonometry
Acta Ophthalmologica, 1990Abstract In order to study the reliability of airpuff tonometry, 230 eyes of 115 patients had their IOP measured with 2 airpuff tonometers, NCT and Pulsair, and one applanation tonometer, Perkins handheld Goldmann Type, between Dec 87 and March 89. Each patient had three readings per eye with each airpuff instrument and two readings per eye with the ...
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Accommodation and Applanation Tonometry
Archives of Ophthalmology, 1961In a preceding publication, 1 the calculated C value of tonography was shown to be significantly affected by whether the eye, during tonography, was in the accommodated or relaxed state. The C values obtained during accommodation were significantly larger. Furthermore, attentive fixation of the "fixation-light" of the slit lamp for 4 min.
Mansour F. Armaly, Melvin L. Rubin
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Noncontact Tonometry in Children
Optometry and Vision Science, 1991A hand-held noncontact tonometer (Pulsair, Keeler Ltd., UK) was tested in 42 children, from 5 months to 12 years of age. At least 1 intraocular pressure (IOP) reading was obtained in all of the 84 eyes studied, whereas with a Goldman applanation tonometer measurements could be obtained in only 26 eyes (14 subjects).
M. Buscemi +4 more
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Comparison of gastric air tonometry with standard saline tonometry
Intensive Care Medicine, 1996To compare partial pressure of carbon dioxide (PCO2) measurements obtained by sampling gastric intraluminal air with those obtained by standard saline tonometry.Prospective, unblinded study.Intensive care unit in a tertiary cardiac surgical center.20 patients undergoing cardiac surgery.Gastric tonometric catheters were inserted, gastric fluid was ...
A. Michalopoulos +3 more
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Albrecht von Graefes Archiv f�r Klinische und Experimentelle Ophthalmologie, 1968
An 600 Augen wurde die Applanationstonometrie und Elektrotonometrie durchgefuhrt. Als bei der Deutung der Elektrotonometerwerte Friedenwalds Kalibrationskurve vom Jahre 1955 angewandt wurde, waren die Mittelwerte einerseits der Applanationswerte und andererseits der Elektrotonometerwerte mit 5,5 und 7,5 g Gewicht fast identisch. Innerhalb der Differenz
Aulis Horsmanheimo, Ahti Tarkkanen
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An 600 Augen wurde die Applanationstonometrie und Elektrotonometrie durchgefuhrt. Als bei der Deutung der Elektrotonometerwerte Friedenwalds Kalibrationskurve vom Jahre 1955 angewandt wurde, waren die Mittelwerte einerseits der Applanationswerte und andererseits der Elektrotonometerwerte mit 5,5 und 7,5 g Gewicht fast identisch. Innerhalb der Differenz
Aulis Horsmanheimo, Ahti Tarkkanen
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Comparison of Proview phosphene tonometry with Goldmann applanation tonometry
Canadian Journal of Ophthalmology, 2006To compare intraocular pressures obtained using a handheld pressure phosphene tonometer (PPT) (Proview, Bausch & Lomb Pharmaceuticals, Inc., Tampa, Fla.) with Goldmann applanation tonometry.Comparative case series of 30 randomly selected patients.The readings obtained with the pressure phosphene tonometer display a higher mean and a larger standard ...
Thomas Lee Willoughby +4 more
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Survey of Ophthalmology, 2008
The definition of glaucoma has changed over the decades from a simple ocular pressure disease to a systemic disorder of multivariate etiology. Glaucoma may be defined for the individual eye as a chronic ocular disease with various underlying pathophysiologic disorders. However, elevated intraocular pressure (IOP) is still the most important risk factor
Omar S. Punjabi +3 more
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The definition of glaucoma has changed over the decades from a simple ocular pressure disease to a systemic disorder of multivariate etiology. Glaucoma may be defined for the individual eye as a chronic ocular disease with various underlying pathophysiologic disorders. However, elevated intraocular pressure (IOP) is still the most important risk factor
Omar S. Punjabi +3 more
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