Clinical trials: Cornea
Cornea, Skin Diseases
OCT Vibrography for Biomechanical Properties of Tissues
The overall goal of this study is to develop OCT Vibrography (aka OCT elastography) as a novel tool for measuring biomechanical properties of human tissues in vivo.
- Conditions
- Cornea, Skin Diseases, Gingival Diseases
- Trial name
- NCT05759780
- Testing
- Optical imaging of the tissues
- Where
- United States
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Healthy Cornea
Evaluation of Corneal Endothelium Health Following Articaine Ophthalmic Solution Administration
The goal of this clinical trial is to evaluate the corneal endothelium health of eyes treated with articaine ophthalmic solution in adult participants.
- Trial name
- NCT07838129
- Testing
- Articaine (CYKLX), Vehicle
- Volunteers
- 165 people, healthy volunteers welcome
- Sponsor
- Laboratoires Thea
Cornea, Refraction Error
Corneal Topography and High Order Aberrations in Regular Contraceptive Pills
Effect of regular usage of contraceptive pills on corneal topography and corneal high-order aberrations
- Trial name
- NCT07693673
- Testing
- Hormonal Contraception, Combined Oral Contraceptive (COC)
- Where
- Egypt
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Elshimaa A.Mateen
Cornea; Ectasia, Refractive Errors
Corneal Elastography and Patient Specific Modeling
The goal of this research is to develop measurement tools and simulation technology for characterizing and predicting individual responses to corneal treatments and for advancing understanding of corneal ectasia risk factors.
- Conditions
- Cornea; Ectasia, Refractive Errors, Keratoconus
- Trial name
- NCT03030755
- Testing
- Optical coherence tomography
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- The Cleveland Clinic
Smoking ( Cigarette), Cornea
Acute Ocular Effects of Cigarette Smoking
This prospective study aims to evaluate the short-term effects of smoking on corneal tomographic and biometric measurements in healthy adults.
- Conditions
- Smoking ( Cigarette), Cornea, Anterior Eye Segment Measurements
- Trial name
- NCT07580040
- Testing
- Cigarette Smoking Exposure, No Smoking Exposure
- Where
- Turkey (Türkiye)
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Istanbul University
Pain, Postoperative, Pain, Chronic
fMRI and IVCM Cornea Microscopy of CXL in Keratoconus
Evaluation of neuroplasticity of pain pathways and corneal afferent nerve regeneration following corneal crosslinking (CXL) in keratoconus patients using fMRI and corneal In Vivo Confocal Microscopy (IVCM).
- Conditions
- Pain, Postoperative, Pain, Chronic, Pain, Acute, Surgical Injury
- Trial name
- NCT04439552
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Boston Children's Hospital
Keratoconus, Cornea Ectasia
Dietary Riboflavin (Vitamin B-2) and Cornea Cross-Linking
Corneal ectasia is characterized by irregularity and thinning of the cornea, causing the cornea to bulge forward and cause distorted vision and impaired visual acuity.
- Trial name
- NCT03095235
- Testing
- Dietary riboflavin
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Missouri-Columbia
Cornea
Assessment of Corneal Topography and Densitometry in Rheumatoid Patients
Corneal transparency is a result of its unique ultrastructure with collagen fibrils regularity, integrity of connective tissue, and balanced keratocyte components.
- Trial name
- NCT06759207
- Where
- 2 sites in Egypt
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Sohag University
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
Silicon Oil Effect on Cornea, Corneal Biomechanics
Silicone Effect on Corneal Endothelium and Corneal Biomechanics Using Corvis ST
Brief Summary The goal of this observational study is to investigate the effects of silicone oil tamponade on corneal endothelial cell density (ECD), morphology, and biomechanics in patients undergoing vitrectomy for retinal…
- Trial name
- NCT06861946
- Testing
- Corvis ST, Conrneal endothelial cell density
- Where
- 2 sites in Egypt
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Beni-Suef University
Normal Cornea, Corneal Abnormality
The Heidelberg Engineering ANTERION Corneal Epithelium Thickness Precision and Agreement Study
This is a prospective clinical study that will be conducted at one clinical site located in the United States to assess corneal epithelial thickness parameters with the ANTERION
- Trial name
- NCT05051813
- Testing
- ANTERION
- Where
- United States
- Volunteers
- 151 people, healthy volunteers welcome
- Sponsor
- Heidelberg Engineering GmbH
Normal Subject, Glaucoma
Assessment of an Automated Optical Coherence Tomography and Camera : Effectiveness of Vision-700
The objective of study is to assess the repeatability and agreement of the retina and cornea measurement by Vision-700 in comparison with those by 3D OCT-1.
- Conditions
- Normal Subject, Glaucoma, Retinal Disease, Cornea
- Trial name
- NCT06496763
- Testing
- Vision-700
- Where
- Taiwan
- Volunteers
- 159 people, healthy volunteers welcome
- Sponsor
- Crystalvue Medical Coporation
Cataract, Healthy Eye
The Heidelberg Engineering ANTERION Anterior Segment Cornea and IOL Precision and Agreement Study
This is a prospective clinical study that will be conducted at one clinical site located in the United States to assess anterior segment parameters with the ANTERION
- Conditions
- Cataract, Healthy Eye, Cornea Abnormality, Post-Keratorefractive Surgery
- Trial name
- NCT04130490
- Testing
- ANTERION
- Where
- United States
- Volunteers
- 176 people, healthy volunteers welcome
- Sponsor
- Heidelberg Engineering GmbH
Myopia, Cornea
Euclid Phoenix Lens Design Trial 2
Lens wettability and subjective comfort of Euclid orthokeratology lenses with and without an enhanced coating will be compared in 50 children. Axial elongation will be monitored in pediatric patients who qualify and consent.
- Trial name
- NCT06392607
- Testing
- Euclid orthokeratology (standard coating), Euclid orthokeratology (enhanced coating)
- Where
- 5 sites in United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Euclid Systems Corporation
Myopia, Cornea
Euclid Phoenix Lens Design Trial
The "first fit" success rate of the current Euclid orthokeratology "MAX" lens design will be compared to that of the new Euclid orthokeratology MAX "Phoenix" lens design in 30 children.
- Trial name
- NCT06389916
- Testing
- Euclid orthokeratology MAX (current design), Euclid orthokeratology MAX Phoenix (new design)
- Where
- 5 sites in United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Euclid Systems Corporation
Cornea Epithelial Mapping
CORNEAL EPITHELIAL MAPPING IN DIABETICS
The corneal epithelium is the outermost layer that covers the front of the eye; it not only functions as a barrier that blocks the passage of foreign material, but also plays an important role in maintaining high optical quality.
- Trial name
- NCT04734158
- Testing
- corneal imaging
- Where
- Egypt
- Volunteers
- 153 people, healthy volunteers welcome
- Sponsor
- Minia University
Cornea
Influence of Silicone Hydrogel Contact Lens Neophyte Wear on Corneal Sensitivity
Soft contact lenses can affect the ocular surface and sometimes cause intolerance. The aim of this study is to measure corneal sensitivity using the Swiss Liquid Jet aesthesiometer at baseline, after one and after six weeks, in…
- Trial name
- CSCL (NCT05745220)
- Testing
- Device: silicone hydrogel contact lens
- Where
- Switzerland
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- Daniela Nosch
Cornea
To Investigate Agreement Between the EM-3000 and the Predicate Device Noncon Robo Pachy (F&A) (CellChek XL)
The purpose of this study is to evaluate the precision and agreement of the study device, a specular microscope, in comparison to a currently commercially available specular microscope in establishing substantial equivalence of…
- Trial name
- NCT02293122
- Testing
- Observational
- Where
- United States
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Tomey Corporation
Cataract, Presbyopia
Evaluation of Visual Outcomes in Patients With Complex Corneas Implanted With the IC-8 IOL
The purpose of this study is to evaluate visual outcomes in patients with complex corneas who have been previously implanted with the IC-8 IOL after cataract removal.
- Conditions
- Cataract, Presbyopia, Irregular; Contour of Cornea
- Trial name
- NCT05377515
- Where
- Singapore
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- AcuFocus, Inc.
Cornea
Influence of Silicone Hydrogel Extended Contact Lens Wear on Corneal Sensitivity
Soft contact lens wear reduces the amount of oxygen reaching the eye, which may have an influence on corneal sensitivity. The aim of this study is to measure corneal sensitivity with means of liquid jet esthesiometry at baseline…
- Trial name
- NCT05298917
- Testing
- silicone hydrogel contact lens
- Where
- Switzerland
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Daniela Nosch