PURPOSE To investigate quantitatively the relationships between elevated intraocular pressure (IOP), axonal loss, and corneal thickness in the DBA/2 mouse model of glaucoma, to understand better how these factors contribute to disease progression. METHODS IOP was measured with a handheld tonometer (Tono-Pen; Medtronic Solan, Jacksonville, FL) in 195 to 446 eyes of mice 2 to 10 months of age s...

PURPOSE To characterize the nyctohemeral rhythm of intraocular pressure (IOP) and ocular perfusion pressure (OPP) in patients with newly diagnosed, untreated normal tension glaucoma (NTG). METHODS Twenty-seven patients with suspected NTG were prospectively included and underwent 24-hour monitoring of IOP and blood pressure (BP), polysomnography, and nailfold capillaropathy. The nyctohemeral r...

IMPORTANCE All studies of 24-hour intraocular pressure (IOP) rhythm conducted to date have used repeated IOP measurements requiring nocturnal awakenings, potentially disturbing sleep macrostructure. OBJECTIVE To evaluate the effects on sleep architecture and IOP rhythm of hourly awakening vs a contact lens sensor (CLS) to continuously monitor IOP without awakening. DESIGN, SETTING, AND PART...

Glaucomatous axon injury occurs at the level of the optic nerve head (ONH) in response to uncontrolled intraocular pressure (IOP). The temporal response of ONH astrocytes (glial cells responsible for axonal support) to elevated IOP remains unknown. Here, we evaluate the response of actin-based astrocyte extensions and integrin-based signaling within the ONH to 8 hours of IOP elevation in a rat ...

PURPOSE The aim of the this study was to determine the effect of intravitreal antivascular endothelial growth factor injections on intraocular pressure (IOP) and identify possible risk factors for the development of increased IOP. MATERIALS AND METHODS This prospective study included a total of 106 eyes receiving intravitreal injection of bevacizumab as treatment for macular edema or active c...

PURPOSE To characterize optic nerve head (ONH) connective tissue deformation after acute (15 or 30 minutes) intraocular pressure (IOP) elevation in six adult normal monkeys using three-dimensional (3-D) histomorphometry. METHODS Trephined ONH and peripapillary sclera from both eyes of six monkeys, each perfusion fixed with one eye at IOP 10 mm Hg (IOP-10) and the other at IOP 30 or 45 mm Hg (...

PURPOSE To investigate the rate and the degree of the ocular hypertensive response to dexamethasone ointment in children undergoing eyelid surgery. METHODS Dexamethasone ointment (Dexcosil) was applied three times a day for the first week and twice a day for the second to third week postoperatively to children undergoing epiblepharon surgery. Intraocular pressure (lOP) was measured on the day...

PURPOSE To compare the effect of topical prednisolone acetate 1% (PA) used after routine cataract surgery to the effect of difluprednate 0.05% (DFBA) used for the same indication on intraocular pressure (IOP). METHODS An electronic query was created to gather information from all cataract surgeries between January 2010 and January 2015 within the electronic health record database at Barnet Du...

The purpose of the study was to investigate the correlation between Corneal Visualization Scheimpflug Technology (Corvis ST tonometry: CST) parameters and various other ocular parameters, including intraocular pressure (IOP) with Goldmann applanation tonometry. IOP with Goldmann applanation tonometry (IOP-G), central corneal thickness (CCT), axial length (AL), corneal curvature, and CST paramet...