Augeninnendruckmessungen im Tages- und Nachtverlauf bei Glaukompatienten und Normalprobanden mittels Goldmann- und Perkins-Applanationstonometrie

Wozniak, Kathleen; Koller, Andrea; Spörl, E.; Böhm, Andreas; Pillunat, Lutz E

doi:10.1007/s00347-006-1407-7

Cited by 25 publications

(7 citation statements)

References 20 publications

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“…In the reclined position, OPP was estimated using the following formula: OPP reclining = MAP reclining — IOP reclining , where MAP reclining is the mean brachial artery blood pressure measured in the left arm with the subject reclining on the right side. 28 In a clinical trial comparing Goldmann and Perkins applanation tonometry, 29 IOP was approximately 1 mm Hg lower using Perkins compared to Goldmann applanation tonometry. Thus, any difference between Goldmann and Perkins applanation tonometry has minimal impact on the calculation of OPP reclining .…”

Section: Methodsmentioning

confidence: 99%

Effect of Brimonidine on Retinal Vascular Autoregulation and Short-term Visual Function in Normal Tension Glaucoma

Feke

Bex

Taylor

et al. 2014

American Journal of Ophthalmology

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Section: Methodsmentioning

confidence: 99%

Effect of Brimonidine on Retinal Vascular Autoregulation and Short-term Visual Function in Normal Tension Glaucoma

Feke

Bex

Taylor

et al. 2014

American Journal of Ophthalmology

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“…[35][36][37] Furthermore, glaucoma patients exhibit a higher postural IOP dependence at high elevations 38 and at night. 39 Although Goldmann applanation tonometry is the gold standard in measuring IOP, 7,8 it has to be mounted to a slit-lamp biomicroscope, restricting its availability to hospitals and doctors' offices. This complicates and/or prevents its use in handicapped persons or patients with reduced motility.…”

Section: Discussionmentioning

confidence: 99%

New method for remote and repeatable monitoring of intraocular pressure variations

et al. 2014

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We present initial steps toward a new measurement device enabling high-precision, noncontact remote and repeatable monitoring of intraocular pressure (IOP)-based on an innovative measurement principle. Using only a camera and a laser source, the device measures IOP by tracking the secondary speckle pattern trajectories produced by the reflection of an illuminating laser beam from the iris or the sclera. The device was tested on rabbit eyes using two different methods to modify IOP: via an infusion bag and via mechanical pressure. In both cases, the eyes were stimulated with increasing and decreasing ramps of the IOP. As IOP variations changed the speckle distributions reflected back from the eye, data were recorded under various optical configurations to define and optimize the best experimental configuration for the IOP extraction. The association between the data provided by our proposed device and that resulting from controlled modification of the IOP was assessed, revealing high correlation (R2=0.98) and sensitivity and providing a high-precision measurement (5% estimated error) for the best experimental configuration. Future steps will be directed toward applying the proposed measurement principle in clinical trials for monitoring IOP with human subjects.

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“…Because the Perkins tonometer and GAT use the same principles of applanation tonometry, they share similar advantages and limitations. Their accuracy is similar, with a mean difference of 1.0 mmHg [ 12 , 13 ]. The Perkins tonometer also offers reasonable reliability, as shown in a study comparing several tonometers to GAT [ 14 ].…”

Section: Goldmann Applanation Tonometermentioning

confidence: 99%

Detecting IOP Fluctuations in Glaucoma Patients

Nuyen

Mansouri²

2016

TOOPHTJ

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Lowering intraocular pressure (IOP) remains the guiding principle of glaucoma management. Although IOP is the only treatable risk factor, its 24-hour behavior is poorly understood. Current glaucoma management usually relies on single IOP measurements during clinic hours, even though IOP is a dynamic parameter with rhythms dependent on individual patients. It has further been shown that most glaucoma patients have their highest IOP measurements outside clinic hours. The fact that these IOP peaks go largely undetected may explain why certain patients progress in their disease despite treatment. Nevertheless, single IOP measurements have determined all major clinical guidelines regarding glaucoma treatment. Other potentially informative parameters, such as fluctuations in IOP and peak IOP, have been neglected, and effects of IOP-lowering interventions on such measures are largely unknown. Continuous 24-hour IOP monitoring has been an interest for more than 50 years, but only recent technological advances have provided clinicians with a device for such an endeavor. This review discusses current uses and shortcomings of current measurement techniques, and provides an overview on current and future methods for 24-hour IOP assessment. It may be possible to incorporate continuous IOP monitoring into clinical practice, potentially to reduce glaucoma-related vision loss.

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Augeninnendruckmessungen im Tages- und Nachtverlauf bei Glaukompatienten und Normalprobanden mittels Goldmann- und Perkins-Applanationstonometrie

Cited by 25 publications

References 20 publications

Effect of Brimonidine on Retinal Vascular Autoregulation and Short-term Visual Function in Normal Tension Glaucoma

Effect of Brimonidine on Retinal Vascular Autoregulation and Short-term Visual Function in Normal Tension Glaucoma

New method for remote and repeatable monitoring of intraocular pressure variations

Detecting IOP Fluctuations in Glaucoma Patients

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