Clinical trials: Eye Change
Pediatric Disorder, Vitamin D Deficiency
Retinal Changes in Vitamin D Deficiency
Retinal tissue parameters of pediatric patients with vitamin D deficiency will be evaluated in this prospective case-control study. The patients will be divided into 2 groups according to the vitamin D level.
- Conditions
- Pediatric Disorder, Vitamin D Deficiency, Retinal Disease, Choroidal Disease
- Trial name
- VDD (NCT04891211)
- Testing
- Vitamin D deficiency
- Where
- Turkey (Türkiye)
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Adiyaman University
Amblyopia
OCT-A and Amblyopia
Detect changes in retinal vessel density in the superficial and deep capillary plexuses using OCTA in children with anisometropic amblyopia
- Trial name
- NCT05223153
- Testing
- Optical Coherence tomography angiography
- Where
- Egypt
- Volunteers
- 32 people
- Sponsor
- Minia University
Myopia, Myopia; Refractive Error
Peripheral Relative Refractive Power of Orthokeratology Lenses
Orthokeratology (OK) has been demonstrated to be an effective intervention for slowing axial elongation in children with myopia.
- Trial name
- NCT07294404
- Testing
- orthokeratology
- Where
- China
- Volunteers
- 53 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
Keratoconus, Collagen Diseases
Correlation Between Q-value Changes and Progression of Pediatric Keratoconus.
Keratoconus is a progressive corneal disease characterized by asymmetric corneal thinning and structural changes in corneal collagen which leads to decrease in visual acuity due to myopic shift, irregular astigmatism or corneal…
- Conditions
- Keratoconus, Collagen Diseases, Corneal Disease
- Trial name
- NCT05114928
- Testing
- Transepithelial Corneal Collagen Cross-linking, Scheimpflug camera
- Where
- Egypt
- Volunteers
- 9 people
- Sponsor
- Benha University
Myopia
Wearing Behavior and Eye Length Changes in Children With Myopia Wearing Myopia Control Spectacle Lenses
The goal of this clinical trial is to learn how children with myopia aged 8 to 15 years move their eyes and heads during near-vision tasks while wearing different spectacle lenses, and if wearing myopia control spectacle lenses…
- Trial name
- NCT07780851
- Testing
- Single Vision Lens (SVL), Myopia Control Lens (MCL)
- Where
- Singapore
- Volunteers
- 20 people
- Sponsor
- Essilor International
Brain Tumor, Central Nervous System Tumors
Cyproheptadine and Megestrol in Preventing Weight Loss in Children With Cachexia Caused By Cancer or Cancer Treatment
RATIONALE: Cyproheptadine and megestrol may improve appetite and help prevent weight loss in children with cancer. PURPOSE: This phase II trial is studying how well cyproheptadine and megestrol work in improving appetite and…
- Conditions
- Brain Tumor, Central Nervous System Tumors, Cachexia, Leukemia
- Trial name
- NCT00066248
- Testing
- cyproheptadine hydrochloride, megestrol acetate
- Where
- 43 sites in United States, Canada and 1 more
- Volunteers
- 70 people
- Sponsor
- University of South Florida
Age Related Macular Degeneration (AMD)
A 16 Week Evaluation of the Novartis Health Management Tool (HMT) in Age Related Macular Degeneration (AMD)
This is a prospective pilot study to evaluate the usability and applicability of a self monitoring test of visual function with the handheld Health Management Tool (HMT) to remotely monitor neovascular Age Related Macular…
- Trial name
- NCT01542866
- Testing
- Health Management Tool (HMT)
- Where
- 23 sites in United States
- Volunteers
- 160 people
- Sponsor
- Novartis Pharmaceuticals
Non-arteritic Ischemic Optic Neuropathy
Peripapillary and Macular Vascular Changes of Unilateral Anterior Ischemic Optic Neuropathy: An Optical Coherence Tomography Angiography Study
This series aims at studying the peripapillary and macular vascular changes in subjects with unilateral anterior ischemic optic neuropathy via Optical Coherence Tomography Angiography (OCTA).
- Trial name
- NCT06031350
- Testing
- Optical Coherence Tomography Angiography
- Where
- Egypt
- Volunteers
- 30 people
- Sponsor
- Omar Said
Mild Ptosis, Moderate Ptosis
A Newly Modified Technique for Levator Muscle Tucking in Blepharoptosis Surgery: An Egyptian Tertiary Center Study
Mild to moderate blepharoptosis with good levator function is usually corrected by levator muscle resection or advancement with their modifications with high success rate.
- Trial name
- Lidtucking (NCT04883853)
- Testing
- Mild _moderate Ptosis tucking
- Where
- Egypt
- Volunteers
- 180 people
- Sponsor
- Ain Shams University
Diabetic Retinopathy (DR), Retinal Microvascular Changes
Relation Between Glycemic Control and Retinal Microvascular Changes in Diabetic Patients Using OCTA
An observational cross-sectional comparative study which will be conducted in the Department of Ophthalmology, Sohag University Hospital, Egypt to detect the relation between glycemic control and retinal microvascular changes in…
- Trial name
- Retinopathy (NCT07726381)
- Volunteers
- 50 people
- Sponsor
- Sohag University
Strabismus; Intermittent
Eye Alignment and Eye Control Changes Through Follow up Period After Application of Eye Exercises Post Strabismus Surgery
The aim of this study is to determine the patient status through its follow up period and weather the eye alignment and eye control are as the same as the last physiotherapy treatment session or there is any deterioration of them.
- Trial name
- NCT06543212
- Testing
- physiotherapy exercises
- Where
- Egypt
- Volunteers
- 40 people
- Sponsor
- Amany Refaat Mohamed Abdel Wahid
Cataract
Anterior Segment Changes After Phacoemulsification in Cataractous Eyes with Shallow Anterior Chamber
Phacoemulsification in shallow anterior chamber is considered to be more hazardous regarding risk of intraoperative and postoperative complications.
- Trial name
- NCT06745596
- Testing
- cataract surgery 1, cataract surgery 2
- Where
- Egypt
- Volunteers
- 24 people
- Sponsor
- Zagazig University
Sjogren's Syndrome, Salivary Gland
The Pathogenesis and Natural History of Sjogren's Disease
Background: -Sjogren s Disease (formerly: Sjogrens Syndrome, Sj(SqrRoot)(Delta)gren s syndrome) is a disease that affects about 1-4 million Americans. It is more common in women.
- Conditions
- Sjogren's Syndrome, Salivary Gland, Pathogenesis
- Trial name
- NCT01425892
- Where
- United States
- Volunteers
- 300 people
- Sponsor
- National Institute of Dental and Craniofacial Research (NIDCR)
High Myopia
Development and Pathological Changes of High Myopia Among Children and Adolescents in China
The study aims to observe the relationship between the changes of ocular structure parameters and pathological changes among children and adolescents with high myopia.
- Trial name
- NCT03533647
- Testing
- Observational
- Where
- China
- Volunteers
- 1,400 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Cataract
Dynamic Light Scattering for Studying Lens Aging and Cataract Formation
This study will use dynamic light scattering (DLS) technology to study normal lens aging and early cataract formation. Cataract is a clouding of the lens that interferes with the passage of light to the retina, impairing visual…
- Trial name
- NCT00081991
- Where
- United States
- Volunteers
- 267 people, healthy volunteers welcome
- Sponsor
- National Eye Institute (NEI)
TNF-receptor Associated Periodic Syndromes (TRAPS)
Efficacy and Safety Study of ACZ885 in Patients With Active Recurrent or Chronic TNF-receptor Associated Periodic Syndrome (TRAPS).
This trial will assess the safety and efficacy of ACZ885 in patients with active recurrent or chronic TNF-receptor associated periodic syndrome (TRAPS).
- Trial name
- NCT01242813
- Testing
- ACZ885
- Where
- 6 sites in Ireland, Italy and 1 more
- Volunteers
- 20 people
- Sponsor
- Novartis Pharmaceuticals
Diabetes Mellitus, Diabetic Retinopathy
Study to Evaluate the Effectiveness of a Program Developed to Improve Eye Care for Veterans With Diabetes
The study's primary objective is to determine whether the PRSS improves the optimal timing of photocoagulation in diabetic patients in VA.
- Trial name
- NCT00119535
- Testing
- Implementation of Proactive Diabetes Eye Care Program
- Where
- 3 sites in United States
- Volunteers
- 2,000 people
- Sponsor
- US Department of Veterans Affairs
Ophthalmology, Artificial Intelligence
Using Machine Learning to Adapt Visual Aids for Patients With Low Vision
According to the WHO's definition of visual impairment, as of 2018, there were approximately 1.3 billion people with visual impairment in the world, and only 10% of countries can provide assisting services for the rehabilitation…
- Conditions
- Ophthalmology, Artificial Intelligence, Low Vision Aids
- Trial name
- NCT04892316
- Testing
- Diagnostic test
- Where
- China
- Volunteers
- 400 people
- Sponsor
- Sun Yat-sen University
Uveitis, Posterior
Corneal Endothelial Cell Density in Eyes Treated With a Fluocinolone Acetonide Intravitreal Implant
An Observational Change-From-Baseline Evaluation of Corneal Endothelial Cell Density in Eyes Treated with a Fluocinolone Acetonide Intravitreal Implant
- Trial name
- NCT03145025
- Testing
- Retisert, Fluocinolone Acetonide Intravitreal Implant
- Where
- United States
- Volunteers
- 3 people, healthy volunteers welcome
- Sponsor
- Bausch & Lomb Incorporated
Myopia
Pharmacological and Non-pharmacological Treatment Effects on Children With Different Predicted Myopia Progression Rate
The goal of this clinical trial is to compare pharmacological and non-pharmacological treatment effects on the children with different predicted myopia progression rate measured by modified multifocal electroretinogram.
- Trial name
- NCT06282848
- Testing
- Atropine 0.05%, DIMS lens
- Where
- Hong Kong
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University