Clinical trials: Visual Impairment
Retinal Hemangioblastoma, Von Hippel-Lindau Disease
Retrospective Case Series of Trans-scleral Cryotherapy for Retinal Hemangioblastoma
Background: Retinal hemangioblastoma (RH) is a tumor. It grows from the retina in the eye. It can threaten a person s vision. Trans-scleral cryotherapy is used to destroy the tumors and minimize the long-term risks of vision…
- Trial name
- NCT04458935
- Where
- United States
- Volunteers
- 25 people
- Sponsor
- National Eye Institute (NEI)
Cerebral Visual Impairment, Refractive and Accommodative Disorders
Babies in Glasses; a Feasibility Study.
This is a feasibility study to begin investigating the possibility that early use of near vision glasses will improve vision in infants at risk of Cerebral Visual Impairment (CVI), leading to further improvement in other areas of…
- Conditions
- Cerebral Visual Impairment, Refractive and Accommodative Disorders, Hypoxic-Ischemic Encephalopathy, Premature Birth
- Trial name
- BiG (NCT05048550)
- Testing
- Near vision spectacles
- Where
- United Kingdom
- Volunteers
- 55 people
- Sponsor
- Great Ormond Street Hospital for Children NHS Foundation Trust
Methylmalonic Aciduria and Homocystinuria,Cblc Type, Genetic Disease
EPI-743 in Cobalamin C Defect: Effects on Visual and Neurological Impairment
The aim of the research is to investigate the safety and efficacy of EPI-743 treatment in patients with Cbl-C defect and related visual and neurological impairment.
- Conditions
- Methylmalonic Aciduria and Homocystinuria,Cblc Type, Genetic Disease, Retinopathy
- Trial name
- NCT01793090
- Testing
- Epi-743
- Where
- Italy
- Volunteers
- 30 people
- Sponsor
- Bambino Gesù Hospital and Research Institute
Cerebral Palsy, Visual Impairment
Turkish Validity and Reliability of the Visual Function Classification System (VFCS)
Cerebral Palsy (CP) is the most common childhood disorder that occurs with a lesion in the developing infant brain, seen in 2-3/1000 live births.
- Conditions
- Cerebral Palsy, Visual Impairment, Visual Disorder, Cerebral Visual Impairment
- Trial name
- NCT05102955
- Testing
- Observational questionnaires
- Where
- Turkey (Türkiye)
- Volunteers
- 120 people
- Sponsor
- Kahramanmaras Sutcu Imam University
Loss of Visual Contrast Sensitivity, Near Vision
Visual Performance Following Implantation of Presbyopia Correcting IOLs
The purpose of the current study was to compare the visual performance after bilateral implantation of the Panoptix IOL , or the AT LISA IOL or Tecnis Symfony IOL .
- Conditions
- Loss of Visual Contrast Sensitivity, Near Vision, Visual Impairment
- Trial name
- NCT04907955
- Testing
- phacoemulsification with implantation of presbyopia correcting IOL
- Where
- Kuwait
- Volunteers
- 50 people
- Sponsor
- Dar Al Shifa Hospital
Neurofibromatosis Type 1 (NF1), NF2-related Schwannomatosis
How Can the Experience of Hospital Outpatient Departments be Improved?
This project aims to improve outpatient departments by working with patients and staff to make these spaces more inclusive for people with sensory challenges (it focuses on people with nerve tumour conditions as they are more…
- Trial name
- NCT07818213
- Testing
- Qualitative data collection activities
- Where
- United Kingdom
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- King's College London
Children Suffering From Cortical Visual Impairment
Validation of a Parental Questionnaire for Screening Children for Neurovisual Disorders
Some children present visual difficulties linked not to damage to the eye, but to damage to the brain. This type of dysfunction of the visual cerebral pathways leads, for example, to difficulties in recognition, visuomotor…
- Trial name
- NCT06997354
- Testing
- Questionnaire
- Where
- Belgium
- Volunteers
- 250 people, healthy volunteers welcome
- Sponsor
- Université Catholique de Louvain
Refractive Error, Visual Impairment
The Baltimore Reading and Eye Disease Study
The Baltimore Reading and Eye Disease Study (BREDS) is a two year study to determine the prevalence of vision problems in an early school age population with reading difficulty.
- Conditions
- Refractive Error, Visual Impairment, Convergence Insufficiency, Reading Disabilities
- Trial name
- BREDS (NCT02607384)
- Testing
- Eyeglass wearing, Orthoptic exercises, Specialist referral
- Volunteers
- 328 people, healthy volunteers welcome
- Sponsor
- Johns Hopkins University
Amblyopia, Amblyopia Unilateral
Non-invasive Induction of Metaplasticity for Amblyopia
The goal of this clinical trial is to determine the efficacy of flicker therapy as an adjunct therapy to treat amblyopia beyond the critical period in adolescents and adults aged 14-40 years who have amblyopia of ≥3 lines of…
- Conditions
- Amblyopia, Amblyopia Unilateral, Amblyopia, Anisometropic, Amblyopia Strabismic
- Trial name
- NIMA (NCT07846397)
- Testing
- Flicker
- Volunteers
- 10 people
- Sponsor
- Boston Children's Hospital
Vision Disorders, Vision, Low
Viewing Strategy Training in Children With (Cerebral) Visual Impairment
Viewing strategies are strategies used to process visual Information. Many children with visual impairment seem to lack systematic viewing strategies.
- Trial name
- NCT05600140
- Testing
- Viewing strategy training
- Where
- Netherlands
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Royal Dutch Visio
Intermittent Exotropia
Visual Perceptual Learning Based Digital Therapeutics for Stereopsis in Intermittent Exotropia
This study evaluates the efficacy and safety of visual perceptual learning for improving stereopsis in intermittent exotropia. Half of participants will receive visual perceptual training using the Nu.T.
- Trial name
- NCT06117813
- Testing
- Nu.T, No-Treatment Control
- Where
- 6 sites in South Korea
- Volunteers
- 54 people
- Sponsor
- Nunaps Inc
Visual Impairment, Menstrual Problem
Menstrual Health Education for Visually Impaired Adolescent
This study was planned as a two-group randomized controlled interventional study to determine the effect of face-to-face and web-based menstrual health education given to visually impaired adolescent girls on menstrual attitude…
- Trial name
- NCT06490016
- Testing
- web based education, Face to face
- Where
- Turkey (Türkiye)
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- Cukurova University
Choroidal Neovascularization (CNV)
Assess the Efficacy/Safety of Intravitreal Ranibizumab in Patients With Vision Loss Due to Choroidal Neovascularization.
This study was conducted to evaluate the efficacy and safety of 0.5 mg ranibizumab in adult and adolescent patients with visual impairment due to choridal neovascularization (CNV).
- Trial name
- NCT01840410
- Testing
- Ranibizumab
- Where
- 59 sites in Australia, Canada and 19 more
- Volunteers
- 183 people
- Sponsor
- Novartis Pharmaceuticals
Uveitis
Clinical Outcome in Uveitis
This study is aimed at investigating the long term clinical outcome of patients with uveitis.
- Trial name
- NCT01983488
- Where
- United Kingdom
- Volunteers
- 231 people
- Sponsor
- Moorfields Eye Hospital NHS Foundation Trust
Retinitis Pigmentosa
Acupuncture for the Treatment of Vision Loss Due to Retinitis Pigmentosa
Retinitis Pigmentosa (RP) patients are interested in trying alternative therapies to attempt to slow, halt or reverse the retinal disease process, and claim success with some approaches such as acupuncture, but this potential…
- Trial name
- NCT01604356
- Testing
- Electro-acupuncture
- Where
- United States
- Volunteers
- 19 people
- Sponsor
- Johns Hopkins University
Vision Impairment, Blindness
Assessment of the Validity, Reliability, and Feasibility of Two Smartphone Applications for Testing the Visual Acuity
Visual acuity (VA) is the most common measure of visual function globally. In clinical settings and during screening events, VA is an important measure to quantify changes in vision over time.
- Trial name
- NCT04936100
- Testing
- Assessment of distance and near visual acuity using "Vision Screening module" of "Easy Vision" application, Assessment of distance and near visual acuity using "Test Yourself module" of "Easy Vision" application, Assessment of distance and near visual acuity using "Peek Acuity" application
- Where
- Iran
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Shahid Beheshti University of Medical Sciences
Behavioral Dynamics, Visual Impairment
Behavioral Dynamics Between Infants With Visual Loss and Healthy Controls
An individual senses the world and reflects feedbacks via independent behaviors. Such precise collaboration of the sensory and behavioral systems is fundamental to survival and evolution.
- Trial name
- NCT03431207
- Testing
- Standardized video recording for behaviors
- Where
- China
- Volunteers
- 4,196 people, healthy volunteers welcome
- Sponsor
- Sun Yat-sen University
Visual Disorder, Young Adult
The Effect of Social Skills Training in Visually Impaired Adolescents
The aim of our study is to examine the effects of eight sessions of online social skills training given to visually impaired adolescents on social skills, self-efficacy, social phobia and social integration.
- Conditions
- Visual Disorder, Young Adult, Blindness, Blindness and Low Vision
- Trial name
- NCT05608811
- Testing
- Social Skills Training
- Where
- Turkey (Türkiye)
- Volunteers
- 40 people
- Sponsor
- Saglik Bilimleri Universitesi
Blindness and Low Vision
V-NAV Usability Study: End Users Trying the Vortant Indoor Navigation Tool
The study will begin with an explanatory/training session where individuals with low vision will learn to use the V-NAV (Vortant NAVigation tool) indoor navigation app, and will have the opportunity to try it for a few…
- Trial name
- NCT05647694
- Testing
- V-NAV indoor navigation prototype
- Where
- United States
- Volunteers
- 16 people
- Sponsor
- Vortant Technologies, LLC
Low Vision in Children
Biofeedback in Idiopathic Infantile Nystagmus Syndrome
Active eye movement control training, an old and still most prevalent intervention in low vision rehabilitation (LVR) was never used in nystagmus clinically.
- Trial name
- NCT04142307
- Testing
- Biofeedback Training
- Where
- Canada
- Volunteers
- 34 people
- Sponsor
- Monica Daibert Nido