Clinical trials: Intraocular Pressure Changes
Intraocular Pressure Changes After Glucosamine Sulfate Consumption.
Effect of Glucosamine on Intraocular Pressure
In this double blind clinical trial 92 patients suffering from rheumatoid arthritis are included. Those with the history of intraocular and corneal surgery, diabetic and heavy smokers are excluded from the study.
- Trial name
- NCT02306083
- Testing
- glucosamine sulfate 1500 mg three times a day
- Where
- Iran
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- Shahid Beheshti University of Medical Sciences
Healthy
Regulation of Optic Nerve Head Blood Flow During Combined Changes in Intraocular Pressure and Arterial Blood Pressure
Autoregulation is the ability of a vascular bed to maintain blood flow despite changes in perfusion pressure. The existence of an effective autoregulation in the optic nerve head (ONH) circulation has been shown in animals and…
- Trial name
- NCT00915226
- Testing
- Suction cup application, Squatting
- Where
- Austria
- Volunteers
- healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Intraocular Pressure Change in Intravitreal Injection
Effect of Antiglaucoma Agents on Short Term Intraocular Pressure Fluctuations After Intravitreal Bevacizumab Injection
To assess the effect of prophylactic antiglaucoma agents in prevention of acute intraocular pressure rise after intravitreal injection.
- Trial name
- NCT02140450
- Testing
- Timolol, Brimonidine, Acetazolamide
- Where
- Iran
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Mashhad University of Medical Sciences
Pregnancy
Corneal Biomechanics During Pregnancy
It is known that intraocular pressure changes during pregnancy. Collagen structure changes during pregnancy to enable softening of the symphysis, whitening of the birth chanel, and, thus, ultimately to enable delivery of a child.
- Trial name
- CorvisPreg (NCT04433689)
- Testing
- Non-Contact measurement of corneal properties
- Where
- Switzerland
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University of Zurich
Open Angle Glaucoma
Different Glaucoma Treatments Effect on Intraocular Pressure Fluctuation With Postural Change in Eyes With Open-angle Glaucoma
The purpose of this study is to investigate the effect of trabeculectomy, glaucoma drainage devices, cyclophotocoagulation and ocular hypotensive eye-drops on IOP elevation with postural change from the sitting to supine…
- Trial name
- NCT02868502
- Testing
- Goldmann tonometer, Pneumatonometer, Tonopen XL
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Meir Medical Center
Silicone Tamponade
The Effect of Postural Changes on Intraocular Pressure in Silicone Oil-filled Eyes
The study was conducted to investigate how postural changes including sitting, supine, and LDP(lateral decubitus position) affect the IOP(intraocular pressure) of SO(silicone oil-filled eyes.
- Trial name
- NCT01992510
- Where
- South Korea
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Kyungpook National University Hospital
Cataract, Glaucoma
IOP Changes Associated With SICS and Phako
Prospective randomized trial in patients requiring cataract surgery in which IOP, angle anatomy and other demographic and clinical data are compared. Subjects randomized to both MSICS and phakoemulsification
- Trial name
- NCT02642211
- Testing
- cataract surgery
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Robin, Alan L., M.D.
Myopia, Myopia; Astigmatism
Assessment of IOP After Corneal Refractive Surgery Based on AI
Significance, Background, and Current Status Studies show the global average prevalence of myopia is 22%, with hyperopia incidence being similar.
- Conditions
- Myopia, Myopia; Astigmatism, Refractive Surgery, Intraocular Pressure Changes
- Trial name
- AIOP-CRS-AI (NCT07544615)
- Where
- China
- Volunteers
- 10,030 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
Glaucoma
Intraocular Pressure (IOP) Changes Associated With Muslim Prayer Postural Changes
Elevated intraocular pressure is widely accepted as a risk factor for glaucoma and controlling the pressure remains the cornerstone of effective treatment.
- Trial name
- NCT00454025
- Where
- United States
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
Intraocular Pressure, Intubation;Difficult
A Comparison of Videolaryngoscope and Direct Laryngoscope in IOP Changes, Throat Pain, IT and Hemodynamic Variables
The aim of the study was to compare intraocular pressure, intubation time, throat pain and hemodynamic variables using direct or videolaryngoscopy under general anesthesia requiring endotracheal intubation
- Trial name
- IOP (NCT03279172)
- Testing
- direct laryngoscope, videolaryngoscope
- Where
- Turkey (Türkiye)
- Volunteers
- 78 people, healthy volunteers welcome
- Sponsor
- Diskapi Teaching and Research Hospital
Healthy
Regulation of Optic Nerve Head Blood Flow During Combined Changes in Intraocular Pressure and Arterial Blood Pressure
Autoregulation is the ability of a vascular bed to maintain blood flow despite changes in perfusion pressure. The existence of an effective autoregulation in the optic nerve head (ONH) circulation has been shown in animals and…
- Trial name
- NCT00914992
- Testing
- Suction cup application, Squatting
- Where
- Austria
- Volunteers
- healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Autoregulation
Regulation of Choroidal Blood Flow During Combined Changes in Intraocular Pressure and Arterial Blood Pressure
Autoregulation is the ability of a vascular bed to maintain blood flow despite changes in perfusion pressure. For a long time it had been assumed that the choroid is a strictly passive vascular bed, which shows no autoregulation.
- Trial name
- NCT00812526
- Testing
- Suction cup application, Squatting
- Where
- Austria
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Glaucoma, Open-Angle, Ocular Hypertension
Intraocular Pressure With Loteprednol and Dexamethasone
The purpose of this study is to compare intraocular pressure (IOP) changes after pterygium surgery among patients using loteprednol and dexamethasone during the postoperative period.
- Trial name
- NCT00781300
- Testing
- Loteprednol Etabonate 0.5%, Dexamethasone 0.1%
- Where
- Brazil
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- Federal University of São Paulo
Healthy
Regulation of Optic Nerve Head Blood Flow During Combined Changes in Intraocular Pressure and Arterial Blood Pressure
Autoregulation is defined as the ability of a vascular bed to adapt its vascular resistance to changes in perfusion pressure. In the eye, several studies have reported that retinal blood flow is autoregulated over a wide range of…
- Trial name
- NCT00912665
- Testing
- Laser Doppler Flowmetry, Goldmann applanation tonometer, squatting
- Where
- Austria
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Healthy Volunteers
SENSIMED Triggerfish Sensor Sizes
This is a study investigating the effect of various SENSIMED Triggerfish sensor lens sizes on the recorded IOP related patterns in 10 healthy volunteers.
- Trial name
- NCT01972997
- Testing
- SENSIMED Triggerfish
- Where
- Spain
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Sensimed AG
Healthy
Choroidal Thickness During Changes in Intraocular Pressure and Arterial Blood Pressure
Age-related macular degeneration (AMD) and glaucoma are among the leading causes of blindness in the western world. Elevated intraocular pressure (IOP) is a well known major risk factor for glaucoma.
- Trial name
- NCT01333891
- Testing
- Phenylephrine, Sodium-Nitroprusside, Suction Cup
- Where
- Austria
- Volunteers
- 1 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Glaucoma, Intraocular Pressure
Intraocular Pressure During Static Apnea
This prospective observational study evaluated changes in intraocular pressure (IOP) during dry static apnea (STA) in breath-hold divers.
- Conditions
- Glaucoma, Intraocular Pressure, Apnea
- Trial name
- NCT07604428
- Where
- Czechia
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University Hospital Olomouc
Keratoconus, Intraocular Pressure
Measuring the Changes of the Intraocular Pressure After Corneal Cross Linking Using Corvis CT
To evaluate the changes that occur in the intraocular pressure before and after corneal cross linking using Corvis CT.
- Trial name
- NCT07599020
- Testing
- Corvis Machine
- Volunteers
- 1 people, healthy volunteers welcome
- Sponsor
- Tanta University
Uveitic Glaucoma, Anterior Uveitis
Aqueous Humor Dynamics and Hypertensive Uveitis
Uveitis is a disease that affects over 2 million people around the globe, and can ultimately lead to blindness. The proportion of patients with uveitis who become blind has not been reduced over the past 30 years, and this is…
- Trial name
- NCT02765308
- Where
- United Kingdom
- Volunteers
- 94 people, healthy volunteers welcome
- Sponsor
- Guy's and St Thomas' NHS Foundation Trust
Myopia
Corneal Biomechanics Study
The goal of the study is to investigate relationship between the corneal response to a temporary increase in intraocular pressure and corneal mechanical properties.
- Trial name
- NCT03658239
- Testing
- Inversion
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Rochester