View clinical trials related to Intraocular Pressure.
Filter by:The purpose of this study is to investigate changes in intraocular pressure measured continuously during isometric exercise.
This study will compare the effect of two intravenous solutions on eye pressure during spine surgery in the following groups: Group A - Lactated Ringer's replacement for blood loss and placebo eye drops Group B - Lactated Ringer's replacement for blood loss and brimonidine eye drops Group C - Albumin replacement for blood loss and placebo eye drops Group D - Albumin replacement for blood loss and brimonidine eye drops
The primary purpose of this study is to evaluate the effects of ocular physical properties on intraocular pressure (IOP) measurements in eyes with healthy corneas using the following instruments to measure IOP: Goldmann applanation tonometer, pneumotonometer, ocular blood flow pneumotonometer, Tono-Pen, Pascal Dynamic Contour Tonometer and the Schiotz Tonometer. Ocular physical properties to be evaluated are:varying (CCT), corneal curvature (CC), axial length, anterior chamber depth and scleral rigidity. The secondary purpose of this is to determine if there is a correlation between CCT and other ocular properties, and which instruments that measure these other ocular properties are most affected by CCT.
The classic Goldmann applanation tonometer has been further developed. The applanation principle has been retained, while the internal force transmission and the pressure gauging have been optimized, and the display of results digitized. The purpose of the study is to compare the standard Goldmann applanation tonometer AT900 with the new version of the device, and to test the reliability and reproducibility of measurements, as well as its safety.
The purpose of this study is to evaluate an assessment of the intraocular pressure with the dynamic contour tonometry and the Goldmann applanation tonometry in patients with active anterior uveitis.
Introduction: Ocular administration of glucocorticoids is a common and effective treatment for several ocular diseases. However it is often complicated with the elevation of intraocular pressure (IOP). Anecortave acetate (AA) is an analog of cortisol acetate and lacks the typical anti-inflammatory and immunosuppressive properties of glucocorticoids. The effect of its anterior juxtascleral depot (AJD) injection has been evaluated in cases of glaucoma caused by intravitreal triamcinolone acetonide, presenting impressive results. The purpose of this study is to evaluate the efficacy and safety of the AA injection as a possible antiglaucoma treatment alternative. Methods: A prospective clinical study will be carried out including 30 glaucoma patients (30 eyes). After inclusion each patient will receive a single AJD injection of 30 mg of AA in the selected eye. Main outcome measure include: intraocular pressure at 1st day, 7th day, 1st, 2nd and 3rd months.
The objective of this study will be to answer a clinical question that has not already been investigated; that is, what are the effects of aortic infra-renal clamping and unclamping on intraocular pressure during Abdominal Aortic Aneurysm (AAA) repair? Depending on the results, this study may raise or alleviate concern that vascular surgery for abdominal aortic aneurysm could contribute to early perioperative exacerbation of pre-existing eye disease and increase a patient's vulnerability to developing a type of blindness known as ischemic optic neuropathy. The purpose of this observational study is to evaluate whether intraocular pressure measurements with a handheld tonometer will detect changes in intraocular pressure related to intraoperative events during aortic cross clamping and unclamping that may provide information on causes of perioperative blindness.
Long-term intraocular pressure (IOP) fluctuation may be significantly associated with the progression of glaucomatous visual field loss, even in patients kept always low IOP after triple procedure, an effective approach for patients with coexisting glaucoma and visually significant cataracts.
Our goal is to study the relationship between intraocular pressure during robotic prostatectomy surgery and visual deficiencies/vision loss after surgery. We believe the risk of vision loss from this surgery to be due to positioning during the operation, as well as abdominal carbon dioxide insufflation. As robotic procedures are gaining in popularity, we should determine whether they are subjecting this patient population, and perhaps more likely the patient with a preoperative diagnosis of glaucoma, to an increased likelihood of postoperative visual disturbance.If our hypothesis that intraocular pressure is increased in these patients is confirmed, future studies will assess therapeutic modalities to maintain the IOP near baseline.
Our experiments are designed to test the overall hypothesis that position-dependent or water-dependent intra-ocular pressure (IOP) spikes occur in humans, and that these challenge ocular homeostasis.