Clinical trials: Allergic Reaction to Contrast Media
Cataract, Traffic Accident
Validation of Mesopic and Photopic Contrast Vision Tests With Respect to Nighttime Driving Ability
A) The main purposes of this study are (i) to develop a related virtual reality (VR) environment in order to judge the nighttime driving ability under mesopic and under glare conditions (ophthalmologically healthy subjects and…
- Conditions
- Cataract, Traffic Accident, Vision Disorders, Driving Impaired
- Trial name
- ContrastVal (NCT03169855)
- Testing
- Slit lamp (LOCS III Score)
- Where
- Germany
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- Aalen University
Myopia, Moderate
To Compare the Clinical Outcomes of FemtoLASIK and ICL Implantation in Treating Moderate Myopia Focusing on Refractive Stability, Contrast Sensitivity and High Order Aberrations.
Compare the clinical outcomes of FemtoLASIK and ICL implantation in treating moderate myopia.
- Trial name
- NCT07291986
- Testing
- FemtoLASIK, ICL implantation
- Where
- Egypt
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Walid Osama Abdel Rahman Nour El Din
Cataract, Lens Opacities
PMCF Retrospective Study Outcomes of a Premium Monofocal IOL
Multicentric, retro- / prospective, open-label, observational PMCF study to investigate visual performance, contrast sensitivity and patient satisfaction after mono- or bilateral implantation of Isopure 1.2.3.
- Trial name
- PHY2110 (NCT04874376)
- Testing
- IOL implantation experimental (Isopure 1.2.3.)
- Where
- 6 sites in Spain
- Volunteers
- 109 people, healthy volunteers welcome
- Sponsor
- Beaver-Visitec International, Inc.
Primary Open Angle Glaucoma, Secondary Open Angle Glaucoma Due to PEX
Contrast Sensitivity in Glaucoma
The primary aim of the Erlangen´s Glaucoma Contrast Sensitivity-Study (EGCS-Study) is the evaluation of the diagnostic and prognostic validity of a diagnostic procedure, measuring contrast sensitivity.
- Trial name
- NCT00947869
- Where
- Germany
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Erlangen-Nürnberg
Ptosis, Macular Degeneration
Comparing Vision Tests in a Virtual Reality Headset to Existing Analogues
The purpose of this study is to compare the results of vision tests that are algorithmically derived and delivered through a virtual reality headset with those delivered through the existing technology standards (eg.
- Conditions
- Ptosis, Macular Degeneration, Ametropia
- Trial name
- RTS1 (NCT04714424)
- Testing
- Virtual Reality Headset
- Where
- United States
- Volunteers
- 84 people, healthy volunteers welcome
- Sponsor
- Icahn School of Medicine at Mount Sinai
Hypersensitivity
Role of Skin Tests for the Diagnosis of Immediate Hypersensitivity Reactions Due to Iodinated Contrast Media
The purpose of this trial is to study the diagnostic role of skin test in immediate reactions to iodinated radiocontrast media.
- Trial name
- NCT00819494
- Testing
- Skin tests with radiocontrast media
- Where
- Thailand
- Volunteers
- 63 people, healthy volunteers welcome
- Sponsor
- Chulalongkorn University
Crohn Disease, Food Allergy
Contrast-enhanced Ultrasound in Patients With Crohn´s Disease and Food Allergy
The purpose of this study is to investigate differences of the bowel wall thickness visible in conventional ultrasound and bowel perfusion using quantitative Contrast-Enhanced Ultrasound in patients with Crohn´s disease in…
- Trial name
- NCT05768971
- Testing
- Mild diet, Provocative diet
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- Friedrich-Alexander-Universität Erlangen-Nürnberg
Lenses, Intraocular
Visual Acuity After Using A New Monofocal Intraocular Lens Compared To Standard Monofocal Lens
This is a prospective comparative interventional clinical study, that took place from January 2021 to November 2021. Twenty patients (20) were enrolled in this study 10 patients in each group.
- Trial name
- NCT05430295
- Testing
- phacoemulsification, monofocal intraocular lens implantation
- Where
- Egypt
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Kasr El Aini Hospital
Cataract, Presbyopia Correction
The Purpose is to Evaluate Visual Acuity for Distance, Intermediate and Near and Additionally Contrast Sensitivity at 25% and 10% of Illumination After Implantation of Trifocal IOL, Extended Range of Vision IOL, Bifocal IOL With Low Addition and Monofocal IOL
The objective of this study was to evaluate the effect of intraocular lens (IOL) selection on visual acuity and refractive outcomes, to assess the impact of IOL type on postoperative contrast sensitivity, and to investigate…
- Conditions
- Cataract, Presbyopia Correction, Visual Acuity
- Trial name
- IOL (NCT07008768)
- Testing
- Cataract surgery and refractive lens exchange surgery, TRIFOCAL IOL, EROV IOL
- Where
- Croatia
- Volunteers
- 131 people, healthy volunteers welcome
- Sponsor
- University Eye Hospital Svjetlost
Glaucoma
Assessment of Ability Related to Vision
To determine the clinical usefulness of a refined third-generation instrument - The Assessment of Ability Related to Vision (AARV) in establishing the amount of disability, charting the detrimental effects of progressive disease…
- Trial name
- AARV (NCT01027312)
- Volunteers
- 121 people, healthy volunteers welcome
- Sponsor
- Wills Eye
Allergic Rhinitis
Topical ASP-1001 (Contrast Media Formulation) and the Acute Response to Nasal Allergen Challenge (NAC)
The purpose of this study is to see whether ASP-1001 when given as a nasal spray is safe and can reduce the signs and symptoms of allergic rhinitis (hayfever) following nasal challenge with antigen.
- Trial name
- NCT00791102
- Testing
- ASP-1001 nasal spray
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Chicago
Glaucoma
Building a Database of Results From People Without Eye Problems
The purpose of this study is to build a database of results from a new test that measures contrast sensitivity (the Spaeth-Richman Contrast Sensitivity Test (SPARCS)).
- Trial name
- SPARCS (NCT02627339)
- Where
- United States
- Volunteers
- 208 people, healthy volunteers welcome
- Sponsor
- Wills Eye
Bipolar Depression
Neural and Visual Responses to Light in Bipolar Disorder: A Novel Putative Biomarker
Objective. Bipolar Disorders (BD) are a major public health problem. The investigators still lack knowledge of the mechanisms which contribute to BD.
- Trial name
- LightEyeBD (NCT02048995)
- Where
- United States
- Volunteers
- 91 people, healthy volunteers welcome
- Sponsor
- Northwestern University
Amblyopia, Amblyopia, Anisometropic
Stochastic Resonance Applied to Amblyopia Training and the Plasticity of Brain
The prevalence of Taiwan's population with amblyopia is 2-5%. Amblyopia affects the daily life and learning ability. The human visual system can be developed normally with exposure of clear images on the retina, which often drive…
- Trial name
- NCT04213066
- Testing
- Portable tablet
- Volunteers
- 51 people, healthy volunteers welcome
- Sponsor
- National Cheng-Kung University Hospital
Methods to Measure Contrast Vision
A Comparative Study of Six Methods to Measure Human Contrast Vision
This study evaluates the relative performance of different methods to measure the human spectral contrast sensitivity function (CSF).
- Trial name
- NCT02767284
- Testing
- UCST-V1, UCST-V2, UCST-V3
- Where
- Sweden
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Uppsala University