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| CORNEAL DONOR STUDYSummaryPrincipal Investigator: roy W Beck Affiliation: Jaeb Center for Health Research Country: USA Abstract: Several emerging problem areas in corneal transplantation and organ donation are likely to reduce the availability of corneal donor tissues in the United States. Such a reduction would significantly jeopardize the visual health of thousands of Americans who currently depend upon the eye banking system to provide safe and effective corneal tissue for sight restoration on a timely basis. The most easily implemented solution is to increase utilization of older donor-age tissue which is currently discarded or not even collected. Although a definitive study has not been performed, the weight of current evidence suggests that donor age is not an important predictor of graft failure when other criteria for suitability of the donor tissue (e.g., endothelial cell count) are met. Unfortunately, a strong bias exists against use of older donor tissue by many corneal surgeons and eye banks. Many surgeons and eye banks have arbitrarily set an upper age limit for the use of corneal tissue. Therefore, a considerable amount of potentially usable donor tissue is either not being harvested or, if harvested, goes unused because of this bias. To provide these much needed data, the Corneal Donor Study (CDS) was developed. The specific objective of the study is to determine whether the graft-failure rate over a 5-year follow-up period is equivalent with corneal tissue from donors older than 60 years old compared with that from younger donors. The study protocol is summarized below. Exposure Variable: Age of donor tissue. Sample Size: 1000 patients with approximately half receiving tissue from donors > 60 and half from donors <60 Outcome Measure: Graft failure or regarding from a 5-year follow-up period Recipient Eligibility Criteria: (1) Age range: 40-80 years, (2) Corneal disease. Presence of a condition associated with endothelial dysfunction, including pseudophakic corneal edema, Fuchs' dystrophy, posterior polymorphous dystrophy, irido-corneal-endothelial (ICE) syndrome, endothelial failure, interstitial keratitis (non-herpetic), or perforating corneal injury. Donor Eligibility Criteria: (1) Endothelial cell count> 2000 by specular microscopy according to the Eye Bank's usual routine, (2) Death to preservation time <15 hours if body or eyes refrigerated and <6 hours if not refrigerated, (3) Death to surgery time <7 days, (4) Age 10-79, (5) Phakic. Funding Period: 1999-08-01 - 2008-07-31 more information: NIH RePORT Top Publications
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Publications
Donor age and corneal endothelial cell loss 5 years after successful corneal transplantation. Specular microscopy ancillary study resultsJonathan H Lass
Cornea Donor Study Coordinating Center, Jaeb Center for Health Research, 15310 Amberly Drive, Suite 350, Tampa, FL 33647, USA
Ophthalmology 115:627-632.e8. 2008..To determine whether endothelial cell loss 5 years after successful corneal transplantation is related to the age of the donor...
An evaluation of image quality and accuracy of eye bank measurement of donor cornea endothelial cell density in the Specular Microscopy Ancillary StudyJonathan H Lass
Cornea Donor Study Coordinating Center, Jaeb Center for Health Research, 15310 Amberly Drive, Suite 350, Tampa, FL 33647, USA
Ophthalmology 112:431-40. 2005....
Donor risk factors for graft failure in the cornea donor studyJoel Sugar
University of Illinois at Chicago, Chicago, IL, USA
Cornea 28:981-5. 2009..The purpose of this study was to assess the relationship between donor factors and 5-year corneal graft survival in the Cornea Donor Study...
Recipient risk factors for graft failure in the cornea donor studyAlan Sugar
W K Kellogg Eye Center, The University of Michigan, Ann Arbor, Michigan, USA
Ophthalmology 116:1023-8. 2009..To identify recipient factors that may be related to risk of corneal graft failure...
The effect of ABO blood incompatibility on corneal transplant failure in conditions with low-risk of graft rejectionSteven P Dunn
Michigan Cornea Consultants, PC, Southfield, USA
Am J Ophthalmol 147:432-438.e3. 2009....
The effect of donor age on corneal transplantation outcome results of the cornea donor studyRobin L Gal
Society of Northeastern New York Lions Eye Bank of Albany, Albany, New York, USA
Ophthalmology 115:620-626.e6. 2008..To determine whether graft survival over a 5-year follow-up period using corneal tissue from donors older than 65 is similar to graft survival using corneas from younger donors...
Specular microscopy ancillary study methods for donor endothelial cell density determination of Cornea Donor Study imagesBeth Ann Benetz
Specular Microscopy Reading Center, Department of Ophthalmology, Case Western Reserve University and University Hospitals of Cleveland, Cleveland, Ohio, USA
Curr Eye Res 31:319-27. 2006..The importance of two independent readings is evident in that image quality ratings differed between the two readers by one grade in 36% of all images and ECD counts differed by >or=5% for 31% of analyzable images...
Clinical profile and early surgical complications in the Cornea Donor StudyMark J Mannis
Cornea 25:164-70. 2006..Baseline patient data, including indications for transplant, intraoperative complication rates, and early postoperative complication rates are described herein...
Baseline donor characteristics in the Cornea Donor StudyAlan Sugar
Cornea 24:389-96. 2005..Fewer epithelial abnormalities were observed with shorter death to preservation time...
Endothelial cell density to predict endothelial graft failure after penetrating keratoplastyJonathan H Lass
Department of Ophthalmology and Visual Sciences, Case Western Reserve University and University Hospitals Eye Institute, Cleveland, Ohio, USA
Arch Ophthalmol 128:63-9. 2010....
