Clinical trials: Visual Disturbance
Pseudophakia
The Effects of Angle Kappa on Clinical Outcomes With the PanOptix Intraocular Lens
Angle Kappa is considered a potential factor in explaining suboptimal outcomes with intraocular lenses (IOLs), particularly multifocal IOLs. Some evidence suggests this is not the case.
- Trial name
- NCT04242875
- Testing
- Angle Kappa, Visual disturbance questionnaire.
- Where
- United States
- Volunteers
- 30 people
- Sponsor
- Carolina Eyecare Physicians, LLC
Visual Acuity, Visual Disturbance
Intra Ocular Pressure During Robotic Prostatectomy
Our goal is to study the relationship between intraocular pressure during robotic prostatectomy surgery and visual deficiencies/vision loss after surgery.
- Conditions
- Visual Acuity, Visual Disturbance, Intraocular Pressure
- Trial name
- NCT00369057
- Where
- United States
- Volunteers
- 15 people
- Sponsor
- Weill Medical College of Cornell University
Vision Disorders
A Predictive Score for the Ischemic Etiology of a Transient Visual Disturbances (VASCO)
The transient visual disturbances (TVD) are defined by a short abnormality of visual function. Their etiology may be ophthalmological, neurological non-ischemic or of ischemic origin.
- Trial name
- VASCO (NCT02485054)
- Testing
- Clinical, ophthalmological and neurological evaluation
- Where
- 2 sites in France
- Volunteers
- 403 people
- Sponsor
- Fondation Ophtalmologique Adolphe de Rothschild
Cataract Surgery
The PanOptix Trifocal IOL: A Study of Patient Satisfaction, Visual Disturbances, and Uncorrected Visual Performance
Prospective survey study of patients who previously underwent cataract surgery with the Alcon PanOptix or PanOptix Toric intraocular lens in both eyes.
- Trial name
- NCT04146961
- Testing
- Alcon PanOptix or PanOptix Toric IOL
- Where
- 3 sites in United States
- Volunteers
- 59 people
- Sponsor
- Research Insight LLC
Cataract, Presbyopia Correction
Night Driving After Trifocal Versus Monofocal IOL Implantation
This prospective observational cohort study will compare night-driving visual difficulty and visual disturbances after bilateral implantation of an Alcon trifocal intraocular lens or an Alcon monofocal intraocular lens in adults…
- Trial name
- TriIOL (NCT07755189)
- Testing
- AcrySof IQ PanOptix TFNT00 Trifocal Intraocular Lens, Alcon Monofocal Intraocular Lens
- Where
- China
- Volunteers
- 200 people
- Sponsor
- Jin Yang
Narrow Angle Patients at Risk for Angle Closure Glaucoma
Dysphotopsia Following Laser Peripheral Iridotomy
To establish the correlation of the location of the Nd:YAG laser peripheral iridotomy to the post operative visual symptoms experienced by some patients.
- Trial name
- NCT01758237
- Testing
- Neodymium-doped: Yttrium Aluminum Garnet (Nd:YAG) laser, Nd:YAG Laser Peripheral Iridotomy
- Where
- Canada
- Volunteers
- 214 people
- Sponsor
- Credit Valley EyeCare
Mesopic Vision, Night Vision Loss
Safety and Efficacy of 0.75% Phentolamine Ophthalmic Solution in Subjects With Post-refractive Surgery Visual Disturbances
Safety and efficacy of 0.75% Phentolamine Ophthalmic Solution to improve mesopic low contrast visual acuity in subjects with post-refractive surgery visual disturbances.
- Trial name
- LYNX-2 (NCT06349759)
- Testing
- phentolamine ophthalmic solution 0.75%, a non-selective alpha-1 and alpha-2 adrenergic antagonist
- Where
- 25 sites in United States
- Volunteers
- 200 people
- Sponsor
- Opus Genetics, Inc
Pain, Chronic, Sleep Disturbance
hBET for Pain and Sleep Feasibility
Long-term pain affects one-third of the United Kingdom population and can be very disabling. People experiencing long-term pain often suffer from disturbed sleep because of their pain symptoms, and disturbed sleep can then make…
- Trial name
- NCT04176861
- Testing
- home-based Brainwave Entrainment Technology
- Where
- United Kingdom
- Volunteers
- 28 people
- Sponsor
- University of Manchester
Sleep Disturbance, Stress
Yoga for Persons With Severe Visual Impairment
This study aims to provide novel information on the feasibility of yoga interventions for secondary symptoms related to severe vision loss, such as sleep disturbances, negative mood states, fall risk and balance.
- Conditions
- Sleep Disturbance, Stress, Anxiety, Depression
- Trial name
- RPY (NCT01366677)
- Testing
- Yoga Intervention
- Where
- United States
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- Johns Hopkins University
Cataract, Presbyopia
Visual Results of the Acrysof IQ Vivity Toric Extended Vision Intraocular Lens
The main goal of this study is to evaluate real-world visual outcomes, rotational stability, and patient reported visual disturbances with a non-diffractive extended vision presbyopia and astigmatism correcting intraocular lens…
- Conditions
- Cataract, Presbyopia, Corneal Astigmatism
- Trial name
- NCT04652037
- Testing
- Acrysof IQ Vivity Toric Extended Vision Intraocular Lens Implantation
- Where
- Canada
- Volunteers
- 20 people
- Sponsor
- Centre hospitalier de l'Université de Montréal (CHUM)
Sleep Disturbance, Visual Health
Gac Fruit Oil Supplementation for Visual Health and Sleep Quality
This study evaluated the effects of gac fruit oil supplementation on visual health, sleep quality, depressive symptoms, cognitive function, and brain imaging parameters in adults with sleep disturbance.
- Trial name
- NCT07623070
- Testing
- Gac Fruit Oil Capsules
- Where
- Taiwan
- Volunteers
- 50 people
- Sponsor
- Yuanpei University of Medical Technology
Visual Disturbances and Blindness, Visual Acuity Reduced Transiently
Home-based Visual Training in Patients Implanted With Trifocal Diffractive Intraocular Lenses
This multicentre randomised controlled trial aimed to reduce the visual discomfort that patients implanted with trifocal diffractive intraocular lenses may experience after surgery.
- Trial name
- OPTicTRAIN (NCT04985097)
- Testing
- Implantation of trifocal diffractive intraocular lenses
- Where
- Spain
- Volunteers
- 60 people
- Sponsor
- Increase-Tech
Children Born Extremely Premature, Disturbance of Visuo-spatial Working Memory
Long-term Effects of Visual Spatial Working Memory Training Program Performed at Preschool Age in Very Preterm Infants With Visual Spatial Working Memory Deficit. A Randomized Controlled Trial
Prematurity tends to increase in France in recent years and more children born extremely premature infants survive. If severe impairments have stabilized, the majority of former extremely premature children have…
- Trial name
- EPIREMED (NCT02757794)
- Testing
- computerized cognitive remediation program, standard remediation
- Where
- 18 sites in France
- Volunteers
- 166 people
- Sponsor
- Assistance Publique Hopitaux De Marseille
Neck Pain, Visual Disturbances
Correlation Between Neck Pain and Visual Disturbances in Smartphone Users
the goal of this study is to Investigate the correlation between neck pain and visual disturbances in smartphone users.
- Trial name
- NCT06446700
- Testing
- neck disability index and visual functional questionnaire
- Where
- Egypt
- Volunteers
- 141 people, healthy volunteers welcome
- Sponsor
- Cairo University
Adverse Effect of Drug Therapy Levodopa
Efficacy of Repetitive Trans-spinal Magnetic Stimulation on Axial Motor Symptoms in PD
The purpose of this randomized trial was to evaluate the efficacy of repeated sessions of trans-spinal magnetic stimulation on gait abnormality, and posture abnormalities in patients with idiopathic Parkinson's disease.
- Trial name
- rTSMS (NCT05271513)
- Testing
- non invasive repetitive magnetic stimulation (real Transcranial + real trans-spinal )
- Where
- Egypt
- Volunteers
- 38 people
- Sponsor
- Assiut University
Mild Traumatic Brain Injury
Change in Connectivity After mTBI Depending on Cognitive Reserve
The purpose of this study is to investigate the role of cognitive reserve in change in connectivity in the brain (measured with functional magnetic resonance imaging, fMRI) and how this is related to symptoms and symptom…
- Trial name
- NCT05593172
- Where
- Sweden
- Volunteers
- 30 people
- Sponsor
- Danderyd Hospital
Endothelial Dysfunction, Sublingual Capillary Glycocalyx and Density
Prematurity as Predictor of Children's Cardiovascular-renal Health
Extreme preterm birth interferes with the development of the cardiovascular system. Both macro- as well as microvasculature undergoes extensive, organ specific maturation.
- Conditions
- Endothelial Dysfunction, Sublingual Capillary Glycocalyx and Density, Visual Disturbances and Blindness, Ventricular Dysfunction, Left
- Trial name
- PREMATCH (NCT02147457)
- Where
- Belgium
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- Universitaire Ziekenhuizen KU Leuven
Aphakia
Clinical Investigation of the AcrySof IQ Vivity Extended Vision Intraocular Lens (IOL)
The purpose of this study is to compare the visual disturbance profile of an intraocular lens (IOL) using nondiffractive optics, the VIVITY IOL, to two diffractive IOLs in subjects requiring bilateral cataract surgery.
- Trial name
- NCT04098367
- Testing
- VIVITY, SYMFONY, AT LARA
- Where
- 12 sites in Australia, New Zealand
- Volunteers
- 222 people
- Sponsor
- Alcon Research
Intraocular Lens, Cataract
Comparison of a Novel Non-diffractive Extended Depth of Focus Intraocular Lens (IOL) and a Trifocal IOL
The purpose of this study is to compare visual performance and quality of life (QOL) following bilateral implantation of a novel non-diffractive extended depth-of-focus (EDOF) intraocular lens (IOL) (AcrySof® IQ Vivity, Alcon…
- Conditions
- Intraocular Lens, Cataract, Quality of Life
- Trial name
- NCT05262504
- Testing
- İntraocular lens implantation
- Where
- Turkey (Türkiye)
- Volunteers
- 52 people
- Sponsor
- Baskent University Ankara Hospital
Perception Disturbance, Visual Suppression
Visual Surround Suppression and Perceptual Expectation Under Psilocybin
The prospective pilot study will address the critical need for more precise characterizations of the acute visual effects of the drug psilocybin by measuring the impact of acute psilocybin intoxication on a perceptual task known…
- Conditions
- Perception Disturbance, Visual Suppression, Psychedelic Experiences
- Trial name
- NCT04424225
- Testing
- Psilocybin, Niacin
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Minnesota