Clinical trials: Corneal Opacity
Graft Rejection
Pathogenetic Risk Factors for Corneal Graft Rejection
There are many predictors that may influence the development of corneal graft rejection after penetrating keratoplasty. In our study investigators analysed the results of keratoplasty and the risk factors for graft rejection.
- Trial name
- NCT06281587
- Testing
- penetrating keratoplasty
- Where
- Russia
- Volunteers
- 93 people
- Sponsor
- The S.N. Fyodorov Eye Microsurgery State Institution
Corneal Opacities
Corneal Opacities in Children
A prospective observational study on corneal opacities in infants and children (1 month to 18 years old) will be conducted at CHLA. Most of these cases will be due to congenital corneal opacity (e.g.
- Trial name
- OCT (NCT02117323)
- Where
- United States
- Volunteers
- 54 people
- Sponsor
- Oregon Health and Science University
Myopia, Astigmatism
Photorefractive Keratectomy (PRK) : Comparison of Corneal Haze Between Two Modes of De-epithelialisation (Laser Versus Manual Alcohol)
surgical correction of ametropia. A number of improvements have been introduced to overcome the side effects and complications such as corneal haze, epithelial irregularities induced by wound healing, pain and delayed visual…
- Trial name
- H-TransPKR (NCT05072977)
- Testing
- TransPRK, Alcohol PRK
- Where
- France
- Volunteers
- 71 people
- Sponsor
- Fondation Ophtalmologique Adolphe de Rothschild
Corneal Opacity
OCT-guided LALAK in Children
The primary goal of the trial is to determine if laser-assisted lamellar anterior keratoplasty (LALAK) will reduce the risks of post-operative complications such as adhesions, glaucoma and cataract that are associated with…
- Trial name
- LALAK (NCT01579643)
- Testing
- OCT guided laser-assisted lamellar anterior keratoplasty (LALAK), Penetrating Keratoplasty (KP)
- Where
- United States
- Volunteers
- 1 people
- Sponsor
- Oregon Health and Science University
Corneal Scars and Opacities
To Evaluate the Clinical Safety and Efficacy of Limbal Stem Cell for Treatment of Superficial Corneal Pathologies".
This study proposes to investigate the transplantation of ex-vivo cultivated allogenic limbal stromal cells for the treatment of the corneal pathologies.
- Trial name
- NCT04932629
- Testing
- Ex-vivo cultivated Allogeneic limbal stromal stem cells
- Volunteers
- 20 people
- Sponsor
- L.V. Prasad Eye Institute
Corneal Opacities (Scar and Stromal Dystrophy)
Observational Study of Corneal Opacities in Adults
A prospective observational study on corneal opacities (scar and stromal dystrophy) in adults (n=150) will be conducted at OHSU. The Optovue anterior segment OCT will be used to perform 3-D corneal scans.
- Trial name
- NCT02109471
- Where
- United States
- Volunteers
- 150 people
- Sponsor
- Oregon Health and Science University
Keratoconus
The Effect of Mitomycin C on Corneal Haze and Scarring After Corneal Crosslinking in Keratoconus Patients
Corneal crosslinking (Crosslinking, CXL) is a treatment offered for the stabilization of early corneal ectatic disorders such as keratoconus.
- Trial name
- NCT04811924
- Testing
- Application of 0.02% MMC over 60 seconds post corneal crosslinking., Corneal crosslinking without the application of 0.02% MMC
- Where
- Canada
- Volunteers
- 4 people
- Sponsor
- Ciusss de L'Est de l'Île de Montréal
Cataract Extraction
A Randomized Study of Intraocular Caliper-assisted Capsulotomy for Age-related Cataract Patients With Corneal Limbus Opacity
The purpose of this study is to compare the accuracy of capsulotomy assisted by intraocular caliper and Verion navigation system in phacoemulsification surgery and postoperative visual quality for age-related cataract patients…
- Trial name
- NCT04977102
- Testing
- Intraocular caliper-assisted capsulotomy, Verion navigation system-assisted capsulotomy
- Where
- China
- Volunteers
- 74 people
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Cataract, Lens Subluxation
Efficacy of an Ocular Bandage Contact Lens for the Treatment of Dry Eye After Complicated and Combined Cataract Surgery
To study the efficacy of an ocular bandage contact lens for the treatment of dry eye after complicated and combined cataract surgery
- Conditions
- Cataract, Lens Subluxation, Hypermature Cataract, Corneal Opacity
- Trial name
- NCT04120389
- Testing
- bandage contact lenses(PureVision; Bausch & Lomb Inc., Rochester, NY), phacoemulsification
- Where
- China
- Volunteers
- 30 people
- Sponsor
- Second Affiliated Hospital, Zhejiang University, School of Medicine
Glaucoma, Blindness, Acquired
Implantable Intraocular Pressure Sensor for Glaucoma Monitoring in Patients With Boston Keratoprosthesis Type 1
The purpose of this study is to evaluate the safety and performance of the EYEMATE system in patients undergoing concomitant implantation of a BKPro type 1 and an EYEMATE sensor over the 24 months period beginning at implantation.
- Conditions
- Glaucoma, Blindness, Acquired, Keratitis, Herpetic, Ocular Cicatricial Pemphigoid
- Trial name
- BKPro (NCT03421548)
- Testing
- EyeMate
- Sponsor
- Centre hospitalier de l'Université de Montréal (CHUM)
Corneal Opacity, Keratitis, Herpetic
Topical Anesthesia for Closed PKP vs Retrobulbar Anesthesia for Open-sky PKP
Penetrating keratoplasty (PKP) is an open-sky surgery that fundamentally has not changed for more than 100 years. Because conventional PKP is associated with the potential for the development of devastating complications such as…
- Conditions
- Corneal Opacity, Keratitis, Herpetic, Corneal Ulcer, Corneal Dystrophies, Hereditary
- Trial name
- NCT02826174
- Testing
- closed PKP under topical anesthesia, open-sky PKP under retrobulbar anesthesia, Anti-Rejection Agents
- Where
- China
- Volunteers
- 60 people
- Sponsor
- Wenzhou Medical University
Keratoconus, Corneal Dystrophies
Laser Assisted Procedures in Penetrating Keratoplasty
Laser- assisted procedures in penetrating keratoplasty (PK) are proposed to improve the surgical outcomes: minimally invasive procedures, improved biomechanical stability of the transplanted flap, reduction of rejection risks…
- Conditions
- Keratoconus, Corneal Dystrophies, Corneal Opacity
- Trial name
- NCT02173847
- Testing
- Penetrating keratoplasty, Femtosecond laser, Diode laser
- Where
- Italy
- Volunteers
- 22 people
- Sponsor
- Ospedale Santo Stefano
CORNEAL OPACITY WITH POOR PROGNOSIS FOR CORNEAL TRANSPLANT
SINGLE PATIENT EXPANDED ACCESS OF A PROSPECTIVE, MULTICENTER CLINICAL TRIAL DESIGNED TO EVALUATE THE SAFETY AND PROBABLE BENEFIT OF THE KERAKLEAR NON-PENETRATING KERATOPROSTHESIS IN SUBJECTS WITH CORNEAL OPACITY WITH POOR PROGNOSIS FOR CORNEAL TRANSPLANT
This is for a "Single Patient Expanded Access" of an on-going study (IRB#2017-3526). In the on-going study, the maximum number of subject will be 35 subjects (35 eyes) will be implanted with the KeraKlear device and will be…
- Trial name
- NCT03812341
- Testing
- Experimental
- Where
- United States
- Sponsor
- University of California, Irvine
Ophthalmopathy, Myopia
Refractive Transepithelial Photo-keratectomy (T-PKR) in High Myopia
The aim of this study is to evaluate the anatomical and refractive parameters following a single-step transepithelial photo-refractive keratectomy (T-PRK) without the addition of mitomycin-C for the treatment of high myopia of 6…
- Conditions
- Ophthalmopathy, Myopia, Keratopathy
- Trial name
- TEPEHERKAHM (NCT04917562)
- Where
- France
- Volunteers
- 38 people
- Sponsor
- Centre Hospitalier Régional Metz-Thionville
Keratoconus
PRoTECT: Corneal Wavefront Guided PRK + Epi-off CXL vs. PTK+Epi-off CXL in Keratoconus
Keratoconus causes irregular astigmatism and reduced vision. Epi-off corneal crosslinking (CXL) stabilizes the cornea but often leaves higher-order aberrations uncorrected.
- Trial name
- PRoTECT (NCT07372911)
- Testing
- Schwind AMARIS excimer laser, Corneal collagen crosslinking epi-off accelerated
- Where
- Mexico
- Volunteers
- 50 people
- Sponsor
- Instituto de Oftalmología Fundación Conde de Valenciana
Corneal Disease, Corneal Opacity
Study to Evaluate the Clinical Safety and Performance of the CorNeat KPro for Treatment of Corneal Blindness
A Single Arm, Pivotal, Open Label, Multicenter Clinical Investigation to Evaluate the Clinical Safety and Performance of the CorNeat Keratoprosthesis, for Treatment of Corneal Blindness
- Conditions
- Corneal Disease, Corneal Opacity, Corneal Injuries
- Trial name
- NCT05694247
- Testing
- CorNeat KPro
- Where
- 6 sites in Canada, France and 2 more
- Volunteers
- 15 people
- Sponsor
- CorNeat Vision Ltd.
Myopia, Hyperopia
Comparison of Acular LS Versus Nevanac for Pain Control in Eyes Undergoing PRK
To determine the ability of two topical Nonsteroidal Anti-inflammatory drops (Acular LS \& Nevanac) to help control pain following Photorefractive Keratectomy (PRK).
- Trial name
- NCT00347204
- Testing
- ketorolac (Acular LS), Nepafenac (Nevanac)
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Center For Excellence In Eye Care
Intraocular Pressure, Corneal Opacity
Loteprednol vs. Prednisolone and Fluorometholone
Corneal haze, in which the cornea becomes cloudy, is a well-known and a potentially vision-threatening postoperative complication of photorefractive keratectomy (PRK).
- Trial name
- NCT03123614
- Testing
- Loteprednol Etabonate 0.5% Oph Gel, Prednisolone Acetate 1% Oph Susp
- Where
- United States
- Volunteers
- 131 people
- Sponsor
- University of Utah
Photorefractive Keratectomy, Corneal Haze
Effect of Ectoine After Photorefractive Keratectomy (PRK).
This is a comparative, open label, parallel group, non interventional study aims to assess the effect of Ectoine containing eye drops on stromal haze, pain and epithelial healing after Photorefractive keratectomy (PRK).
- Trial name
- NCT05313425
- Testing
- Ectohylo (R) eye drops
- Where
- Egypt
- Volunteers
- 15 people
- Sponsor
- Tanta University
Corneal Opacity
Characteristics of Trachomatous Corneal Opacity in Fayoum University Hospital
The purpose of this study is to assess the characteristics of trachomatous corneal opacity in patients with signs of trachoma using Anterior segment Optic coherence tomography and Pentacam
- Trial name
- Trachoma (NCT06000150)
- Testing
- Corneal topography
- Where
- Egypt
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Omar Said