About this trial
The purpose of the study is to determine the safety and efficacy of brief intraoperative corneal endothelial graft incubation in plasma rich in growth factors (PRGF) for reducing postoperative endothelial cell loss.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
undergoing endothelial keratoplasty (DSEK or DMEK) at the Bascom Palmer Eye Institute or Price Vision Group, using corneal graft tissue within 14 days of preservation
Disqualifiers
History of corneal transplantation in the study eye, Best corrected visual acuity (BCVA) worse than 20/40 in the contralateral eye, systemic immunosuppression, previous intraocular surgical procedures (other than cataract surgery) such as glaucoma tubes or silicone oil.
Adults unable to consent
Pregnant women
Prisoners
Trial design
Parallel
Treatments tested in this trial
Endothelial keratoplasty
Procedure/SurgerySurgical replacement of the corneal endothelial cell layer (the cell layer lining the inner surface of the cornea) with brief incubation of the donor tissue in PRGF prior to graft implantation. This incubation will be a one time procedure done to the tissue in the operating room. The endothelial keratoplasty is 30-45 minutes.
PRGF
Biological/VaccinePlasma Rich in Growth Factors (PRGF) is a mixture of proteins and growth factors obtained from the blood of the patient. PRGF incubation lasts 15 minutes. It is a one-time procedure performed on the tissue that will be done in the operating room prior to endothelial keratoplasty.
Treatment groups
Trial outcomes
Primary outcomes
Change in endothelial cell percentage
Central corneal endothelial cell percentage will be assessed by specular microscopy and compared with the baseline donor endothelial cell percentage measured by the provider eye bank to determine endothelial cell changes.
Secondary outcomes
Corneal endothelial cell density
Central corneal endothelial cell density by specular microscopy (cells/millimeter\^2)
Change in Endothelial cell density
Change in central corneal endothelial cell density will be assessed by specular microscopy (cells/millimeter\^2) and compared with the baseline donor endothelial cell density reported by the provider eye bank to determine endothelial cell loss
Visual acuity measured by snellen chart
Participants will have their best corrected visual acuity measured as values expressed using the Snellen chart.
Number of re-bubbling for graft attachment
The number of air re-injections for graft attachment within the first 2 months will be assessed.
Sponsors and contacts
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University of Miami
Lead sponsor
Beauty of Sight
Collaborator