Glaucoma is one of the most common causes of blindness in the world. Well-known risk factors include age, race, a positive family history and elevated intraocular pressures. A newly proposed risk factor is decreased cerebrospinal fluid pressure (CSFP). This concept is based on the notion that a pressure differential exists across the lamina cribrosa, which separates the intraocular space from t...

While the relationship between intraocular pressure and plasma osmolarity has been investigated during hemodialysis, no research has been published concerning the relationship between intraocular pressure and plasma colloid osmotic pressure during hemodialysis. We describe a patient with neovascular glaucoma who demonstrated a marked decrease in intraocular pressure during hemodialysis. The pat...

The tissue pressure of the intraocular contents is called the intraocular pressure (IOP). The normal range for IOP is 10–20 mm Hg and is maintained at this level throughout life and between the sexes, though there is some diurnal and seasonal variation. Control of IOP within the correct physiological range is necessary to maintain the anatomical conditions necessary for optimal refraction and t...

BACKGROUND To examine the outcome and complications of combined phacoemulsification and endoscopic cyclophotocoagulation as surgical management of cataract and glaucoma. DESIGN Retrospective uncontrolled case series from the glaucoma unit, Western Eye Hospital, London, UK. PARTICIPANTS Sixty-three eyes from 59 patients with coexisting cataract and glaucoma. METHODS Patients underwent rout...

The parallel, randomized, double-masked, activecontrolled trial is generally thought to be the most rigorous and unbiased design to adequately compare two glaucoma medicines. Important to this design is the intraocular pressure entry criteria. The lower limit of intraocular pressure is usually set at least >21 mmHg to help assure the study population has the appropriate diagnosis (ocular hypert...

OBJECTIVE To investigate the fluctuations in intraocular pressure during the day and to see if these are associated with changes in corneal shape and in the patterns of ocular aberrations. METHODS Intraocular pressure, corneal curvature, refractive error, spherical equivalent and aberrations (defocus (sphere); cylinder (astigmatism); coma, trefoil and third order spherical aberration) were me...

purpose: to compare the preoperative and postoperative measurement of intraocular pressure (iop) using goldman applanation tonometry (gat), the air puff and pascal dynamic contour tonometers (pdct) in eyes undergoing myopic and myopic astigmatic photorefractive keratectomy (prk). methods: in a descriptional -analytic and prospective study, a complete examination was performed at the slit lamp, ...

purpose: although there are ample evidences for the effects (mostly decrease) of intraocular pressure (iop) after the administration of atracurium and cisatracurium during general anesthesia in ophthalmic operations, no study has yet been done to compare their effects on both iop and pupillary diameter (pd) simultaneously. the aim of this study was to determine whether there is any difference b...