Clinical trials: Corneal Deformity
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
Corneal Dystrophy
Corneal Endothelium Morphology and Central Thickness in Type II Diabetes Mellitus and Normal Subjects
The purpose of this study is to compare corneal endothelium morphology and central thickness in type II Diabetes Mellitus and normal subjects with special reference to glycemic status.
- Trial name
- NCT01084850
- Where
- Denmark
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Frederiksberg University Hospital
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
Mucopolysaccharidoses
Validation and Reliability of Iris Cameras in Mucopolysaccharidoses
To assess the reliablity and validity of 2 new iris cameras in the assement of corneal opacification in mucopolysaccharidoses
- Trial name
- NCT05354219
- Testing
- Imaging
- Where
- United Kingdom
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Manchester University NHS Foundation Trust
Corneal Dystrophy, Macular Dystrophy
The Efficacy of Hyperemesis Gravidarum on Macular Thickness, Corneal Thickness and Intraocular Pressure in Pregnancy
Aim Physiological changes in intraocular pressure as well as in the cornea and macula may occur during pregnancy. In the literature, there are limited data on ocular findings in hyperemesis gravidarum.
- Conditions
- Corneal Dystrophy, Macular Dystrophy, Hyperemesis Gravidarum - Severe
- Trial name
- NCT05927740
- Testing
- Optic coherence tomography
- Where
- Turkey (Türkiye)
- Volunteers
- 110 people, healthy volunteers welcome
- Sponsor
- Batman Training and Research Hospital
Keratoconus, Corneal Opacity
OCT in Diagnosis of Irregular Corneas
This main goal of this study is to improve the detection, classification, monitoring, and treatment of irregular corneas due to keratoconus, warpage, dry eye, scar, stromal dystrophies, and other corneal conditions.
- Conditions
- Keratoconus, Corneal Opacity, Corneal Dystrophy
- Trial name
- NCT03504800
- Testing
- Optical Coherence Tomography
- Where
- United States
- Volunteers
- 445 people, healthy volunteers welcome
- Sponsor
- Oregon Health and Science University
Corneal Edema Secondary to Corneal Endothelial Dystrophy
Early Experience With Descemet's Stripping Automated Endothelial Keratoplasty
The purpose of this study is to report the early clinical outcomes in patients undergoing Descemet's Stripping Automated Endothelial Keratoplasty (DSAEK) for corneal edema secondary to corneal endothelial cell dysfunction, and to…
- Trial name
- DSAEK (NCT00744796)
- Testing
- DSAEK, Anterior Segment Optical Coherence Topography (OCT), Best Spectacle Corrected Visual Acuity (BSCVA)
- Where
- United States
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- University of Texas Southwestern Medical Center
Mucopolysaccharidosis, Fabry Disease
Non-invasive Assessment of Intraocular Pressure in MPS by Use of the Ocular Response Analyzer.
The aim of the present study is to compare intraocular pressure (IOP) values assessed with Ocular Response Analyzer to the classical gold standard of IOP measurement, to Goldmann applanation tonometry by mucopolysacchyridosis…
- Trial name
- MPSORA (NCT01695161)
- Where
- Germany
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Johannes Gutenberg University Mainz
Rare Diseases, Aniridia
Validation of Human Drugs Target of Repurposed Drugs and Novel Therapies
The cross-sectional observational clinical study related to rare eye diseases is a multi-center study in which the hypothesis is that neurokinin 1 receptor and/or substance P expression is increased in REDs associated with…
- Conditions
- Rare Diseases, Aniridia, Neurotrophic Keratopathy, Limbal Stem Cell Deficiency
- Trial name
- NCT06412718
- Volunteers
- 274 people, healthy volunteers welcome
- Sponsor
- IRCCS Ospedale San Raffaele
Map Dot Fingerprint Dystrophy, Post-penetrating Keratoplasty
Brillouin Microscopy Used to Evaluate Corneal Mechanical Properties
This study aims to explore the mechanical properties of the cornea using a non-invasive imaging technique called Brillouin microscopy.
- Conditions
- Map Dot Fingerprint Dystrophy, Post-penetrating Keratoplasty, Post-Descemet Membrane Endothelial Keratoplasty, Healthy Corneas
- Trial name
- NCT06914817
- Testing
- Brillouin optical scanning system (Intelon Optics) (BOSS)
- Where
- Austria
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Vienna Institute for Research in Ocular Surgery
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
Fuchs Dystrophy, Cataract
The Evaluation of Balanced Salt Solution During Cataract Surgery
This study aims to identify if the use of BSS PLUS® Sterile Intraocular Irrigating Solution as an irrigation solution leads to improved corneal outcomes vs BSS® Sterile Irrigating Solution in more compromised corneas.
- Trial name
- NCT05853978
- Testing
- BSS Plus, BSS
- Where
- United States
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Adam Fedyk, MD, FACS
Aniridia
Comparison of the Healing Properties on Corneal Cells of Groth Factor-enriched Plasma and Autologous Serum From Aniridia Patients
Keratopathy of patients with aniridia leads to epithelial scarring disorders and a progressive clouding of the cornea linked to this abnormal healing (fibrosis).
- Trial name
- CICASAND (NCT05400590)
- Testing
- Peripheral venous blood sample, Conjunctival impression
- Where
- France
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Fondation Ophtalmologique Adolphe de Rothschild
Corneal Sensation Reduced, Corneal Dystrophy
Defining the Operating Parameters for a Rebound-esthesiometer
The purpose of this study is to define the operating parameters for a new method to measure corneal sensitivity.
- Conditions
- Corneal Sensation Reduced, Corneal Dystrophy, Corneal Degeneration, Corneal Transplant Failure
- Trial name
- NCT04384094
- Testing
- Esthesiometer measurement
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Icare Finland Oy
Retinal Diseases, Fuchs Endothelial Dystrophy
DISCOVER Study: Microscope-integrated Intraoperative OCT Study
Optical coherence tomography (OCT )provides high resolution information regarding the anatomic structure of the tissues of the eye in a cross-sectional and 3 dimensional view.
- Conditions
- Retinal Diseases, Fuchs Endothelial Dystrophy, Macular Hole, Epiretinal Membrane
- Trial name
- DISCOVER (NCT02423213)
- Where
- United States
- Volunteers
- 2,911 people, healthy volunteers welcome
- Sponsor
- The Cleveland Clinic
Corneal Deformity
Study to Evaluate the Product Performance of a New Silicone Hydrogel Contact Lens
This will be a randomized non-dispensing study comparing the overnight corneal swelling of an eye while wearing no contact lens to the Ultra contract lens.
- Trial name
- NCT02258139
- Testing
- B&L Investigational Contact Lens
- Where
- United States
- Volunteers
- 38 people, healthy volunteers welcome
- Sponsor
- Bausch & Lomb Incorporated
Amblyopia, Myopia
Performance of a Photoscreener for Vision Screening in a Haitian Pediatric Population
Screening of haitian children between the ages of 3 and 6 years old for amblyogenic risk factors with the use of the Spot photoscreener. The photoscreener results will be compared to the complete ophthalmologic evaluation.
- Conditions
- Amblyopia, Myopia, Hyperopia, Astigmatism
- Trial name
- POPH (NCT02655432)
- Testing
- Spot photoscreener, Ophthalmologic evaluation, Cyclopleged refraction
- Where
- 3 sites in Haiti
- Volunteers
- healthy volunteers welcome
- Sponsor
- Université de Montréal
Fuchs Endothelial Corneal Dystrophy
Analysis of the Genotype/Phenotype Relationship in the Fuchs' Corneal Endothelial Dystrophy in France.
The pathophysiology of the most common corneal endothelial dystrophies (Fuchs' Corneal Endothelial Dystrophy (FECD)) is beginning to be dismembered.
- Trial name
- F3S (NCT03974230)
- Testing
- Collection of datas, blood sample, slit lamp examination
- Where
- France
- Volunteers
- 208 people, healthy volunteers welcome
- Sponsor
- Centre Hospitalier Universitaire de Saint Etienne
Keratoconus, Ectasia
A Study to Test the Diagnostic Potential of Brillouin Microscopy for Corneal Ectasia
We have developed novel Brillouin microscopy and we are testing its potential for keratoconus and ectasia diagnostics. We plan to perform axial scans of the cornea in human volunteers in order to compare biomechanical properties…
- Conditions
- Keratoconus, Ectasia, Crosslinking, Fuchs' Endothelial Dystrophy
- Trial name
- NCT02118922
- Testing
- Brillouin imaging
- Where
- United States
- Volunteers
- 168 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Fuchs' Endothelial Corneal Dystrophy
Assessment of Corneal Endothelial Function Following Hypoxic Stress
The purpose of this study is to determine the difference in the cornea's response to contact lens placement between healthy and unhealthy eyes.
- Trial name
- NCT04175938
- Testing
- Wearing of contact lens
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Massachusetts Eye and Ear Infirmary