Review: Measurement Techniques for Intraocular Pressure
نویسندگان
چکیده
The literature on intra-ocular pressure dynamics is reviewed, including tonometer design and calibration, the influence of corneal-scleral mechanics, and scleral rigidity factors. Drugs that influence the outflow facility of the trabecular meshwork (TM) are discussed. Transmural pressure drop across the lamina cribosa (LC) is an important parameter, in terms of quantifying potential glaucoma damage to the optic nerve.
منابع مشابه
Determination of Central Venous Pressure from Intraocular Pressure
Background: In many clinical situations, knowledge of central venous pressure (CVP) is important. Measurement of CVP is not always possible. Objective: To determine if intraocular pressure (IOP) can be used as an estimate for CVP. Methods: IOP and CVP were measured concurrently in 30 candidates of coronary artery bypass graft surgery. Those with carotid artery or jugular venous diseases as we...
متن کاملWhat is the Real Cause of Glaucoma?
Introduction: The term glaucoma refers to a group of diseases that have a characteristic optic neuropathy with associated visual field loss in common. Intraocular pressure has been considered to be the only causal factor for glaucoma and the only factor that can be manipulated to alter the course of the disease. But considering high intraocular pressure as the only factor responsible for glauco...
متن کاملTwo-position measurement of intraocular pressure by PT100 noncontact tonometry in comparison with Goldmann tonometry
BACKGROUND The purpose of this study was to evaluate the precision of intraocular pressure measurements obtained by PT100 noncontact tonometry in a handheld and slit lamp-mounted position in comparison with that of Goldmann applanation tonometry in healthy young adults. METHODS Sixty eyes from 60 subjects (30 men and 30 women) aged 22 ± 1 (range 20-24) years participated in this study. Tripli...
متن کاملTechniques of Glaucoma Detection From Color Fundus Images: A Review
Glaucoma is a generic name for a group of diseases which causes progressive optic neuropathy and vision loss due to degeneration of the optic nerves. Optic nerve cells act as transducer and convert light signal entered into the eye to electrical signal for visual processing in the brain. The main risk factors of glaucoma are elevated intraocular pressure exerted by aqueous humour, family histor...
متن کاملHistory and Clinical Validation of the PASCAL Dynamic Contour Tonometer
Will Goldmann applanation tonometry, the age old “gold standard” of intraocular pressure (IOP) measurement, be replaced with newer methods? One of the newer methods of IOP measurement is PASCAL dynamic contour tonometry (DCT). A review of the history, scientific principles, clinical validation and clinical utility of DCT is presented.
متن کامل