Clinical trials: Corneal Biomechanics
Keratoconus
Treatment of Keratoconus With Advanced Corneal Crosslinking
The purpose of this study was to determine whether mechanical compression of the cornea during corneal crosslinking for keratoconus using a sutured rigid contact lens can improve the optical outcomes of the treatment.
- Trial name
- NCT02425150
- Testing
- Corneal reshaping/crosslinking (CRXL), Corneal Crosslinking (CXL)
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Umeå University
Keratoconus
The Collagen Factors of Rapid Progression of Keratoconus in Children.
The purpose of this observational study was to understand the differences in clinical features and mechanisms of keratoconus between children and adults.
- Trial name
- KCLD (NCT06722937)
- Testing
- Observation
- Where
- China
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Myopia
Characterization of the Corneal Biomechanics of Patients Treated by Corneal Lenticule Extraction for Advanced Refractive Correction (CLEAR) to Correct Myopia
This study aims to perform biomechanical tests on extracted CLEAR lenticles that are routinely discarded after surgery. The investigators also aim to perform Brillouin microscopy to get an in-vivo assessment of the patient's…
- Trial name
- CLEAR Biomech (NCT04817592)
- Testing
- Corneal lenticule extraction for advanced refractive correction (CLEAR)
- Where
- Switzerland
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University of Bern
Tomography, Corneal Biomechanics
Long-term Safety and Effectiveness of LASIK-Xtra Compared to Conventional LASIK
Laser in situ keratomileusis (LASIK) is a widely used procedure for the correction of myopia and myopic astigmatism. Despite its high effectiveness and the general safety of the procedure, long-term safety and effectiveness…
- Conditions
- Tomography, Corneal Biomechanics, Manifest Ref, Endothelial Cells
- Trial name
- Xtra Lasik (NCT06857032)
- Where
- Germany
- Volunteers
- 12 people
- Sponsor
- University Clinic Frankfurt
Myopia
Corneal Biomechanics Study
The goal of the study is to investigate relationship between the corneal response to a temporary increase in intraocular pressure and corneal mechanical properties.
- Trial name
- NCT03658239
- Testing
- Inversion
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Rochester
Eye Diseases
Development of an IT Tool Able to Identify Ocular Conditions
The aim of the study is to use machine learning to develop an IT tool able to differentiate between eye conditions analysing corneal biomechanical data.
- Trial name
- NCT05973617
- Testing
- Measurement of corneal biomechanical properties
- Volunteers
- healthy volunteers welcome
- Sponsor
- Aston University
Myopia, Keratoconus
Assessment of Corneal Biomechanical Properties Using Corvis ST and ECD Following LASIK, PRK, CXL, Veriflex IOL and Implantable Collamer Lens
To evaluate corneal biomechanical changes using the Corvis ST and ECD in patients who have under-gone LASIK, PRK, corneal cross-linking (CXL), Veriflex IOL and ICL.
- Conditions
- Myopia, Keratoconus, Refractive Surgery
- Trial name
- NCT06818461
- Testing
- Corvis St Before and after lasik, PRK, CXL, Veriflex IOL and ICL
- Where
- Egypt
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Beni-Suef University
Corneal Astigmatism, Intraocular Pressure
How Astigmatism Influences Corneal Biomechanics and Intraocular Pressure
The aim of the study was to identify whether preoperative corneal astigmatism can influence corneal biomechanics and the assessment of intraocular pressure (IOP) following micro-incision phacoemulsification.
- Conditions
- Corneal Astigmatism, Intraocular Pressure, Cataract Senile
- Trial name
- NCT03162471
- Testing
- non-contact measurement of intraocular pressure
- Volunteers
- 39 people
- Sponsor
- Medical University of Lodz
Glaucoma, Primary
Biomechanical Changes After Trabeculectomy
Corneal biomechanics are studied in glaucoma patients prior and at least 6 month after trabeculectomy.
- Trial name
- TE-biomech (NCT02287545)
- Testing
- trabeculectomy
- Where
- Germany
- Volunteers
- 30 people
- Sponsor
- Technische Universität Dresden
Myopia
Corneal Biomechanics and Stromal Tissue Characteristics in Patients Undergoing SMILE
This prospective observational cohort study will investigate corneal biomechanical characteristics and their relationships with corneal stromal tissue features in adult patients undergoing clinically indicated small-incision…
- Trial name
- SMILE (NCT07906327)
- Testing
- SMILE
- Where
- China
- Volunteers
- 200 people
- Sponsor
- Tongji University
Pregnancy
Corneal Biomechanics During Pregnancy
It is known that intraocular pressure changes during pregnancy. Collagen structure changes during pregnancy to enable softening of the symphysis, whitening of the birth chanel, and, thus, ultimately to enable delivery of a child.
- Trial name
- CorvisPreg (NCT04433689)
- Testing
- Non-Contact measurement of corneal properties
- Where
- Switzerland
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University of Zurich
Fuchs Endothelial Corneal Dysfunction, Open Angle Glaucoma (OAG)
A Study to Assess Brillouin Hydration Mapping for the Evaluation of Ocular Tissues and Diseases
The overall goal of this study is to develop Brillouin microscope as a novel tool for measuring biomechanical and hydration properties of human tissues in vivo.
- Conditions
- Fuchs Endothelial Corneal Dysfunction, Open Angle Glaucoma (OAG), Dry Eye Disease (DED), Keratoconus
- Trial name
- NCT07780890
- Where
- United States
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Keratoconus, Corneal Crosslinking
Photorefractive Intrastromal Crosslinking (PiXL) for the Treatment of Progressive Keratoconus
The purpose of this study is to evaluate the efficacy, safety and postoperative ocular discomfort by comparing individually customized Photorefractive intrastromal crosslinking (PiXL) for progressive Keratoconus.
- Conditions
- Keratoconus, Corneal Crosslinking, Corneal Biomechanics, Corneal Densitometry
- Trial name
- NCT03990506
- Testing
- Epi-on PiXL, Epi-Off PiXL
- Where
- Sweden
- Volunteers
- 32 people
- Sponsor
- Umeå University
Pseudoexfoliation Syndrome, Cataract
Influence of Cataract Surgery on Corneal Biomechanical Properties in Patients With Pseudoexfoliation Syndrome
Pseudoexfoliation syndrome is associated with alterations in the biomechanical properties of the cornea. This prospective observational cohort study aims to evaluate changes in corneal biomechanical properties after standard…
- Trial name
- NCT07719101
- Where
- Croatia
- Volunteers
- 70 people
- Sponsor
- Kata Culina
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
Glaucoma
Study of Corneal Biomechanics in Glaucoma Patients Using Brillouin Microscopy
This pilot study evaluates the biomechanical properties of the cornea in glaucoma patients using Brillouin microscopy, a non-contact imaging technique.
- Trial name
- NCT06993597
- Testing
- Prostaglandin Analogue -Containing IOP-Lowering Therapy, Beta Blocker, Brillouin Microscopy
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University of Maryland, Baltimore
Myopia
Corneal Biomechanics and Corneal Reshaping Therapy
The aim of the proposed study is to investigate the predictive value of corneal biomechanical properties in corneal reshaping therapy and the role of these parameters in determining the amount of myopia reduction.
- Trial name
- NCT02719535
- Testing
- Corneal reshaping therapy
- Where
- Hong Kong
- Volunteers
- 59 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Open Angle Glaucoma With a Progressive Visual Field
Corneal Biomechanics and Continuous IOP Monitoring Using Soft Contact Lenses in Glaucomatous Patients
Ocular hypertension and its fluctuations is a major risk factor of glaucoma onset and progression. In normal eyes, IOP presents a circadian rhythm, but in glaucomatous eyes IOP circadian rhythm is altered and varied widely…
- Trial name
- BIOLENS (NCT01849536)
- Testing
- SENSIMED Triggerfish®
- Where
- France
- Volunteers
- 30 people
- Sponsor
- University Hospital, Bordeaux
Myopia, Orthokeratology
Assessment of Corneal Biomechanics With the Corvis ST in Different Age of Myopia With Orthokeratology
The present research focused on the effect of the age for the corneal biomechanics of low and moderate myopia patients after wearing orthokeratology (OK lens). According to age, the included cases were divided into 3 groups.
- Trial name
- NCT05635526
- Where
- China
- Volunteers
- 134 people
- Sponsor
- Tianjin Eye Hospital
Corneal Ectasia, Corneal Disease
Computer-aided Diagnosis of Ocular Diseases Based on Corneal Biomechanics
The purpose of this study is the investigation of biomechanical properties of the cornea using computer-aided data analysis. Currently, it is known that keratoconus and glaucoma are ocular disease that are associated with…
- Conditions
- Corneal Ectasia, Corneal Disease, Corneal Astigmatism, Keratoconus
- Trial name
- EyeTwin (NCT04475900)
- Testing
- Corneal biomechanics (Corvis ST, Oculus, Wetzlar, Germany), Corneal topography and tomography (Pentacam, Oculus, Wetzlar, Germany), Optic nerve head measurement
- Where
- Germany
- Volunteers
- 372 people, healthy volunteers welcome
- Sponsor
- Technische Universität Dresden