Clinical trials: Corneal Degeneration
Macular Dystrophy, Corneal
Phase 1 Pilot Study of 4-MP to Treat Stargardt Macular Dystrophy
The purpose of this study is to investigate whether taking 4-methylpyrazole (4-MP, fomepizole, Antizol™) inhibits dark adaptation of the eye.
- Trial name
- NCT00346853
- Testing
- 4-Methylpyrazole, saline
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Utah
Keratoconus, Pellucid Marginal Corneal Degeneration
Safety & Effectiveness of the PXL-Platinum 330 System for CXL Using Riboflavin Solution
Safety and Effectiveness of the PXL-Platinum 330 System for Corneal Collagen Cross-linking in Eyes With Corneal Thinning Conditions
- Conditions
- Keratoconus, Pellucid Marginal Corneal Degeneration, Corneal Degeneration, Corneal Ectasia
- Trial name
- NCT04667572
- Testing
- PXL-330 Platinum device for crosslinking with Peschke riboflavin solution
- Where
- United States
- Volunteers
- 249 people, healthy volunteers welcome
- Sponsor
- Cornea Associates of Texas
Glaucoma, Macular Disease
CEI Van Outreach Screening Study
The primary goal of the trial is to show that optical coherence tomography (OCT) technology can be used to effectively screen for diseases of the eye including glaucoma, macular diseases and keratoconus.
- Conditions
- Glaucoma, Macular Disease, Keratoconus
- Trial name
- NCT01510392
- Testing
- OCT imaging, the FDA Cleared iVue
- Where
- United States
- Volunteers
- 118 people, healthy volunteers welcome
- Sponsor
- Oregon Health and Science University
Keratoconus, Ectasia
Cross-linking of Corneal Collagen (CXL) With Ultraviolet-A in Asymmetric Corneas
The purpose of this study is to evaluate the efficacy of ultraviolet-A (UVA)-induced cross-linking of corneal collagen (CXL) as a method to increase the biomechanical and biochemical stability of the cornea by inducing additional…
- Conditions
- Keratoconus, Ectasia, Degeneration
- Trial name
- NCT01189864
- Testing
- Ciprofloxicin or Vigamox or other., Nonsteroidal (Acular, Acuvail, Voltaren Xibrom, etc), Steroid (FML, Pred Forte, Flarex, etc.)
- Where
- 16 sites in United States
- Volunteers
- 3,493 people
- Sponsor
- Cxlusa
Cataracts, Corneal Edema
Study of Difluprednate vs. Prednisolone Acetate on Visual Acuity, and Corneal Edema Following Cataract Surgery.
The purpose of this clinical research study is to investigate the efficacy of predosing patients undergoing cataract surgery with the potent corticosteroid difluprednate ophthalmic emulsion 0.05% compared to prednisolone acetate…
- Conditions
- Cataracts, Corneal Edema, Retinal Structural Change, Deposit and Degeneration, Visual Acuity Reduced Transiently
- Trial name
- NCT01244334
- Testing
- Difluprednate ophthalmic emulsion 0.05%, Prednisolone acetate 1%
- Where
- 3 sites in United States
- Volunteers
- 52 people
- Sponsor
- Edward J. Holland
Keratoconus, Pellucid Marginal Corneal Degeneration
Safety and Effectiveness of the PXL-Platinum 330 System for CXL Using Riboflavin Solution
Safety and Effectiveness of the PXL-Platinum 330 System for Corneal Collagen Cross-linking in Eyes With Corneal Thinning Conditions
- Conditions
- Keratoconus, Pellucid Marginal Corneal Degeneration, Corneal Degeneration, Corneal Ectasia
- Trial name
- NCT04177082
- Testing
- PXL-330 Platinum device for crosslinking with Peschke riboflavin solution
- Where
- United States
- Volunteers
- 200 people
- Sponsor
- Cornea Associates of Texas
Keratoconus, Ectasia
Collagen Crosslinking With Ultraviolet-A in Asymmetric Corneas (2)
To evaluate the efficacy of ultraviolet-A (UVA)-induced cross-linking of corneal collagen (CXL) as a method to increase the biomechanical and biochemical stability of the cornea by inducing additional cross-links within or…
- Conditions
- Keratoconus, Ectasia, Degeneration
- Trial name
- NCT01097447
- Where
- 5 sites in United States
- Volunteers
- 2,619 people
- Sponsor
- Cxlusa
Rare Disorders, Undiagnosed Disorders
Rare Disease Patient Registry & Natural History Study - Coordination of Rare Diseases at Sanford
CoRDS, or the Coordination of Rare Diseases at Sanford, is based at Sanford Research in Sioux Falls, South Dakota. It provides researchers with a centralized, international patient registry for all rare diseases.
- Conditions
- Rare Disorders, Undiagnosed Disorders, Disorders of Unknown Prevalence, Cornelia De Lange Syndrome
- Trial name
- CoRDS (NCT01793168)
- Where
- 2 sites in United States, Australia
- Volunteers
- 20,000 people
- Sponsor
- Sanford Health
Pellucid Marginal Corneal Degeneration, Keratoconus
A Study to Test the Potential of Brillouin Microscopy for Biomechanical Properties Measurements in Human Cornea
The purpose of this research study is to find out if the new Brillouin Ocular Scanner can measure the variation (difference) of the corneal elastic changes involved in the onset of corneal ectasia, induced by LASIK surgery and…
- Conditions
- Pellucid Marginal Corneal Degeneration, Keratoconus, Keratectasia
- Trial name
- NCT03220529
- Testing
- Brillouin Ocular Scanner
- Where
- 2 sites in United States, Switzerland
- Volunteers
- 85 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Corneal Diseases
Screening Aid to Identify Corneas That May Have Pathologies or Other Conditions
The purpose of this study is to determine the ability of a proprietary software screening tool to discriminate normal corneas (front surface of the eye) from previously diagnosed corneal conditions…
- Trial name
- NCT00396188
- Where
- 4 sites in United States
- Volunteers
- 769 people, healthy volunteers welcome
- Sponsor
- Carl Zeiss Meditec, Inc.
Corneal Deformity, Macular Degeneration Advanced
Comparison of Ocular Changes by Surgical Menopause Using Optical Coherence Tomography (OCT)
The aim of this study is to investigate the early changes in macular thickness, corneal thickness and intraocular pressure in young women undergoing surgical menopause.
- Conditions
- Corneal Deformity, Macular Degeneration Advanced, Surgical Menopause
- Trial name
- NCT05920655
- Testing
- Optic coherence tomography
- Where
- Turkey (Türkiye)
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Batman Training and Research Hospital
Irregular; Contour of Cornea, Keratoconus
Scleral Versus Corneal RGP Contact Lenses in Irregular Cornea Disorders
The most common causes for irregular cornea (IC) in hospital contact lens practice are Keratoconus (KC) and related cornea thinning disorders.
- Conditions
- Irregular; Contour of Cornea, Keratoconus, Pellucid Marginal Corneal Degeneration, Injury of Cornea
- Trial name
- NCT02444923
- Testing
- Scleral rigid gas permeable contact lenses (SRGPcl) (Zenlens™), Corneal Rigid gas Permeable contact lenses (CRGPcl) (Rose K2)
- Where
- United Kingdom
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- London South Bank University
Retinal Disease, Corneal Disease
Tissue Studies of Human Eye Diseases
The purpose of this project is to diagnose and evaluate ocular and related tissues with various diseases such as conjunctival, corneal, uveal, vitreoretinal and optic nerve disorders, ocular degenerative, metabolic or genetic…
- Conditions
- Retinal Disease, Corneal Disease, Diabetic Retinopathy, Uveitis
- Trial name
- NCT00001310
- Where
- United States
- Volunteers
- 3,833 people
- Sponsor
- National Eye Institute (NEI)
Inherited Ophthalmic Diseases, Hypopigmentation Disorder
National Ophthalmic Genotyping and Phenotyping Network (eyeGENE (Registered Trademark)), Stage 3 - Expansion of DNA and Data Repositories for Rare Inherited Ophthalmic Diseases
Background: The eyeGENE (Registered Trademark) program is a research resource for inherited eye conditions which includes genotypic and phenotypic data, imaging, and a corresponding biobank of DNA samples from people with a…
- Conditions
- Inherited Ophthalmic Diseases, Hypopigmentation Disorder, Corneal Dystrophy, Blue-cone Monochromacy
- Trial name
- NCT06491615
- Where
- 2 sites in United States
- Volunteers
- 1,000 people
- Sponsor
- National Eye Institute (NEI)
Cornea, Retina
Spectral-domain Optical Coherence Tomography of the Eye
An increasing number of clinical studies on SD-OCT of ocular pathologies and potential new clinical applications has recently been published in the peer-reviewed literature.
- Conditions
- Cornea, Retina, Refractive Surgery, Macular Edema
- Trial name
- NCT02614625
- Where
- Austria
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Augenabteilung Allgemeines Krankenhaus Linz
Macular Degeneration, Diabetic Retinopathy (DR)
Artificial Intelligence-assisted Diagnosis in Ophthalmology
This is a retrospective, multicenter, observational study designed to develop and validate an artificial intelligence (AI) system capable of detecting and classifying major ophthalmic diseases (glaucoma, cataract, diabetic…
- Conditions
- Macular Degeneration, Diabetic Retinopathy (DR), Glaucoma, Keratoconus
- Trial name
- AI-OPHTH-CR (NCT07497815)
- Testing
- No interventions
- Where
- 2 sites in Costa Rica
- Volunteers
- 15,000 people, healthy volunteers welcome
- Sponsor
- Marisse Masis-Solano
Cornea Degeneration, Progressive Keratoconus
Safety and Effectiveness of Collagen Cross Linking in Progressive Mild and Moderate Keratoconus
The purpose of this study is to evaluate the effectiveness of collagen cross linking (CXL) in reducing progression of mild and moderate progressive keratoconus.
- Trial name
- NCT00815256
- Testing
- Collagen Cross Linking with Riboflavin and UVA light
- Where
- Brazil
- Volunteers
- 15 people
- Sponsor
- Federal University of São Paulo
Multiple Sclerosis, Relapsing-Remitting, Multiple Sclerosis Relapse
Evaluation of Relapse Presence in Multiple Sclerosis
Purpose: This study aims to investigate the demonstrability of increased inflammation and neurodegeneration in multiple sclerosis (MS) patients in relapse period compared to MS patients in remission by cross-sectional analysis of…
- Trial name
- NCT05218317
- Testing
- in-vivo Corneal Confocal Microscopy
- Where
- Turkey (Türkiye)
- Volunteers
- 87 people, healthy volunteers welcome
- Sponsor
- Marmara University
Hypotony Ocular, Cornea Folds and Rupture of Bowman's Membrane Both Eyes
Anterior Corneal Striae in Hypotony
The goal of this is to evaluate the biomechanical properties of hypotonous eyes with vertical anterior corneal striae and/or hypotony maculopathy compared to hypotonous eyes without striae.
- Conditions
- Hypotony Ocular, Cornea Folds and Rupture of Bowman's Membrane Both Eyes, Maculopathy
- Trial name
- NCT04023123
- Testing
- Ophthalmic imaging
- Where
- United States
- Volunteers
- 98 people, healthy volunteers welcome
- Sponsor
- Duke University
Retinitis Pigmentosa, Maculopathy, Age Related
High Resolution, High-speed Multimodal Ophthalmic Imaging
Knowledge of the pathogenesis of ocular conditions, a leading cause of blindness, has benefited greatly from recent advances in ophthalmic imaging.
- Conditions
- Retinitis Pigmentosa, Maculopathy, Age Related, Macular Dystrophy, Macular Edema
- Trial name
- IMA-MODE (NCT04129021)
- Testing
- High-resolution retinal imaging through adaptive optics, High-resolution retinal imaging through holographic systems
- Where
- France
- Volunteers
- 1,200 people, healthy volunteers welcome
- Sponsor
- Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts