Clinical trials: Intraocular Pressure
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
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
Primary Open Angle Glaucoma
The Effects of Caffeinated Coffee on Intraocular Pressure
High intraocular pressure (IOP) is a known risk factor for developing primary open-angle glaucoma (POAG). There is controversy in the literature regarding the degree to which caffeine influences IOP, with some studies reporting…
- Trial name
- NCT01364207
- Testing
- Caffeinated Coffee, Decaffeinated Coffee
- Where
- United States
- Volunteers
- 112 people, healthy volunteers welcome
- Sponsor
- Massachusetts Eye and Ear Infirmary
Primary Open Angle Glaucoma (POAG)
One, Two, or Three iStents for the Reduction of Intraocular Pressure in Open-angle Glaucoma Subjects
The purpose of this study is to evaluate the safety and efficacy of the intraocular pressure (IOP) lowering effect of one, two, or three iStent devices in eyes of subjects previously on two anti-glaucoma medications.
- Trial name
- NCT01517477
- Testing
- iStent
- Where
- Armenia
- Volunteers
- 119 people, healthy volunteers welcome
- Sponsor
- Glaukos Corporation
Glaucoma, Sedation
Effect of Nitrous Oxide (N2O) on Intraocular Pressure in Healthy Volunteers
The purpose of this study is to learn if breathing nitrous oxide (also known as "laughing gas") changes the pressure in a person's eyes.
- Trial name
- NCT00967694
- Testing
- Nitrous oxide
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Oregon Health and Science University
Intraocular Pressure, Caffeine Dosage
The Effect of Dosage of Caffeine on Intraocular Pressure
The goal of the study is to determine the effect of different doses of caffeine on intraocular pressure. We hypothesized that higher dosage of caffeine would increase intraocular pressure more than lower doses.
- Trial name
- NCT01793311
- Testing
- decaffeinated coffee, regular dose coffee, high dose coffee
- Where
- Thailand
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Chiang Mai University
Intraocular Pressure
Analysis of the Microbiota in Goldmann Applanation Tonometers at a Reference Service in Goiânia
This study aims to evaluate the microbiota of goldmann tonometers and its possible change over the visits
- Trial name
- NCT03359200
- Where
- Brazil
- Volunteers
- 1 people, healthy volunteers welcome
- Sponsor
- Instituto de Olhos de Goiania
Intraocular Pressure, Retinal Nerve Fiber Bundle Deficiency
Effect of Steep Trendelenburg in Laparoscopic Surgery on IOP & RNFL Thickness
The effect of Steep Trendelenburg position used during laparoscopic surgery on intraocular pressure during surgery and on the retinal nerve fiber thickness after surgery
- Trial name
- NCT03097705
- Testing
- OCT (Optical coherence tomography)
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Carmel Medical Center
Intraocular Pressure and PROSE Lens
Tonometry Precision and Accuracy During PROSE Scleral Lens Wear: A Pilot Study
The goal of this research is to determine the reproducibility of measurements of intraocular pressure (IOP) when a scleral lens is on the eye.
- Trial name
- NCT04308941
- Testing
- Intraocular pressure
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Boston Sight
Intraocular Pressure
The Effect of Colonoscopy on Intralocular Pressure
Glaucoma is an eye disease that damages the optic nerve, it cause blindness if not diagnosed and treated properly. The major risk factor for the development and progression of glaucoma is increased intraocular pressure.
- Trial name
- NCT02321722
- Where
- Israel
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Meir Medical Center
Intraocular Pressure
Intraocular Pressure (IOP) and Isometric Exercise
The purpose of this study is to investigate changes in intraocular pressure measured continuously during isometric exercise.
- Trial name
- NCT00635180
- Testing
- isometric exercise
- Where
- Norway
- Volunteers
- 9 people, healthy volunteers welcome
- Sponsor
- Ullevaal University Hospital
Synthetic Cannabinoid Abuse (Disorder), Eye Manifestations
Ocular Effects of Synthetic Cannabinoids
The goal of this observational study is to evaluate the ocular effects of Bonzai (synthetic cannabinoids) with spectral-domain optical coherence tomography.
- Trial name
- Bonsai (NCT06235346)
- Where
- Turkey (Türkiye)
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Bezmialem Vakif University
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
Vision
Safety Study Looking at the Effects of Stendra on Vision
The purpose of this study is to see if Stendra causes any changes in vision, eye pressure, pupil dilation, and color vision in healthy males.
- Trial name
- NCT02033200
- Testing
- Stendra 200 mg
- Where
- United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- VIVUS LLC
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
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
Intraocular Pressure
Evaluation of a Novel Method for Increasing Intraocular Pressure in Healthy Subjects
Adequate perfusion is necessary for maintaining tissue function. This applies also for the eye, in which ocular perfusion pressure (OPP) is generally estimated as the difference between mean arterial pressure (MAP) and…
- Trial name
- NCT04044274
- Testing
- IOPstim, Suction Cup
- Where
- Austria
- Volunteers
- 13 people, 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
Hyperemia, Intraocular Pressure
Effect of NSAID on Travoprost-induced Conjunctival Hyperemia and IOP Reduction in Normal Eyes
PG-analogues induce hyperemia as one of side effects in addition to IOP reduction. IOP reduction is caused by direct FP receptor stimulation, but the cause of hyperemia is not clarified.
- Trial name
- ENTICHIR (NCT02136589)
- Testing
- dicrofenac and travoprost
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Tokyo University
End-Stage Renal Disease
Feasibility Study of Arterial Stiffness in Hemodialysis Patients
People with kidney failure have a higher chance of getting disease in the blood vessels and this result in a decreased elasticity of the arteries of their body which make them very stiff or hard.
- Trial name
- NCT02196610
- Testing
- Applanation tonometry
- Where
- Canada
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Ottawa Hospital Research Institute