Tissue and eye bank technical roles

Tissue and eye bank technical roles are the specialized, hands-on positions that recover, screen, process, evaluate, store, and distribute donated human tissue and ocular tissue for transplantation and surgical use.[1][2] These roles exist within tissue banks and eye banks, the establishments that handle non-organ grafts such as bone, skin, heart valves, blood vessels, tendons, amniotic membrane, and corneas, and operate under federal regulation as well as professional standards.[1][3][4] The principal technical credentials are the Certified Tissue Bank Specialist (CTBS), issued by the Association for Advancing Tissue and Biologics (formerly the American Association of Tissue Banks, AATB), and the Certified Eye Banker - Technical (CEBT), issued by the Eye Bank Association of America (EBAA).[3][5]

For the institutions and their pipelines, see Tissue bank and Eye banking and the EBAA. For the regulatory framework, see FDA regulation of human tissue (HCT/Ps). These roles are summarized within the broader field workforce in Workforce and roles in donation and transplantation.

Regulatory and standards framework

In the United States, human tissue intended for transplantation is regulated by the Food and Drug Administration (FDA) as human cells, tissues, and cellular and tissue-based products (HCT/Ps) under Title 21 of the Code of Federal Regulations, Part 1271, which establishes registration and listing, donor-eligibility, and Current Good Tissue Practice (CGTP) requirements.[4] Tissue establishments commonly also seek voluntary accreditation to the AATB Standards for Tissue Banking, and eye banks operate under the EBAA Medical Standards.[1][6] Technical staff perform their work under written procedures and under the oversight of a medical director, a physician for tissue banks and an ophthalmologist (typically cornea-fellowship-trained) for eye banks, who establishes eligibility criteria and qualifies and releases technical staff.[6][7]

Tissue bank technical roles

Tissue banks divide their technical work across the stages of the recovery-to-distribution pipeline.[1][2] Common roles include:

• Tissue recovery technician, performs aseptic recovery of postmortem tissue (bone and other musculoskeletal tissue, skin, heart valves, vessels) per protocol, often traveling to donor sites; backgrounds include surgical technology, emergency medical services, and mortuary science.[1][2]
• Tissue processing technician, cleans, cuts, shapes, inspects, and packages recovered tissue into fresh, frozen, or freeze-dried allografts in a controlled (often cleanroom) environment using validated aseptic technique.[1][2]
• Tissue distribution / inventory specialist, receives, stores, verifies, and ships allograft inventory, manages couriers and chain-of-custody records, and handles on-call requests.[1][2]
• Donor screening / eligibility specialist, conducts the standardized medical-social history interview and compiles records supporting the FDA donor-eligibility determination.[2][4]
• Laboratory technician (serology/microbiology), performs or oversees the infectious-disease serology and microbiological testing of donor samples that feeds the eligibility/release decision; often credentialed through clinical-laboratory pathways.[2][4]
• Quality assurance (QA) specialist, audits documentation and operations against CGTP, AATB Standards, and applicable quality systems, and manages corrective and preventive action.[1][3]

The Certified Tissue Bank Specialist (CTBS)

The CTBS is the principal technical credential for tissue-banking staff. It is a single credential, not a set of separate sub-designations, whose examination covers five subject domains: quality (quality systems, accreditation, and compliance); donor screening, assessment, testing, and eligibility determination; tissue recovery and acquisition; tissue processing; and tissue distribution and clinical applications of allografts.[3][8] Because the credential is unitary, a recovery technician, a processor, and a QA specialist who hold the CTBS hold the same credential, demonstrating knowledge across all five domains rather than a role-specific certificate.[3] AATB eligibility generally requires a baccalaureate degree with six months of relevant experience, or 12 months of relevant tissue-banking experience, and candidates must pass the AATB-administered examination.[3][8]

Eye bank technical roles

Eye banks recover, evaluate, process, and distribute ocular tissue, principally corneas, and in many banks amniotic membrane and sclera.[1][5] Common technical roles include:

• Ocular / eye recovery technician, confirms identity and authorization, completes the donor physical, draws blood for testing, and performs whole-eye enucleation or in-situ corneal excision, then packages the tissue.[5][9]
• Processing technician, prepares pre-cut endothelial grafts for keratoplasty procedures such as Descemet stripping automated endothelial keratoplasty (DSAEK) and Descemet membrane endothelial keratoplasty (DMEK), using microkeratomes or manual dissection, and sterilizes instruments.[9][10]
• Evaluation technician, grades and qualifies corneal tissue using slit-lamp biomicroscopy and specular microscopy, including endothelial cell density (cell count) measurement, before and after any cut, and preserves tissue in storage media.[9][10]
• Distribution / placement coordinator, matches and ships corneal, ocular, and amniotic tissue to surgeons, managing chain-of-custody and surgeon requests.[1][5]

EBAA certification (CEBT and CEB)

The EBAA offers two professional certifications: the Certified Eye Banker - Technical (CEBT) and the Certified Eye Banker (CEB).[5][11] Both require passing an examination demonstrating knowledge of EBAA Medical Standards and Procedures, applicable regulations, and eye-banking practices; the CEBT additionally requires the candidate to demonstrate proficiency in a technical procedure, witnessed and verified by the bank's medical director and technical trainer, whereas the CEB does not require performing a procedure.[5][11] EBAA eligibility generally requires a high-school diploma or GED and a minimum of six months of qualifying experience within the prior two years in tissue or organ procurement and/or processing, with recommendation by the executive director and a qualifying eye-bank medical director; certification expires after three years and is renewed through continuing education.[5][11] Supervisory eye-bank positions commonly require at least one CEBT-credentialed staff member.[6]

Title variation and shared functions

Titles vary across organizations, and smaller tissue and eye banks frequently combine referral, screening, recovery, and processing functions into single multi-stage roles rather than maintaining separate positions for each step.[1][2] Regardless of title, all U.S. tissue and eye establishments that manufacture HCT/Ps are subject to the same FDA registration, donor-eligibility, and CGTP requirements, and the technical workforce performs its functions under medical-director oversight and written, validated procedures.[4][6]

See also

• Tissue bank
• Eye banking and the EBAA
• FDA regulation of human tissue (HCT/Ps)
• Workforce and roles in donation and transplantation

References

• Pathology Outlines. Transfusion medicine, Tissue banking. https://www.pathologyoutlines.com/topic/transfusionmedtissuebanking.html
• Association for Advancing Tissue and Biologics (AATB). Standards for Tissue Banking (recovery, processing, distribution functions). https://www.aatb.org/standards
• Association for Advancing Tissue and Biologics (AATB). Certified Tissue Bank Specialist (CTBS) Certification. https://www.aatb.org/certified-tissue-bank-specialist-ctbs-certification
• eCFR. 21 CFR Part 1271, Human Cells, Tissues, and Cellular and Tissue-Based Products. https://www.ecfr.gov/current/title-21/chapter-I/subchapter-L/part-1271
• Eye Bank Association of America (EBAA). Certification (CEBT and CEB). https://restoresight.org/members/certification/
• Eye Bank Association of America (EBAA). EBAA Medical Standards (October 2024). https://restoresight.org/wp-content/uploads/2024/11/Medical-Standards-October-2024_COMPLETE_Updated.pdf
• FDA. Eligibility Determination for Donors of Human Cells, Tissues, and Cellular and Tissue-Based Products. https://www.fda.gov/regulatory-information/search-fda-guidance-documents/eligibility-determination-donors-human-cells-tissues-and-cellular-and-tissue-based-products
• AATB. CTBS Examination Reference Guide (exam domains). https://www.aatb.org/certified-tissue-bank-specialist-ctbs-certification
• Eye Bank Association of America (EBAA). Certification Examination (CEBT). https://restoresight.org/members/certification/cebt-exam/
• Eye-bank Preparation of Endothelial Tissue (DSAEK/DMEK; specular microscopy; endothelial cell density). PMC4131679. https://pmc.ncbi.nlm.nih.gov/articles/PMC4131679/
• EBAA. Criteria for Certification and Recertification of Eye Bank Technicians (July 2025). https://restoresight.org/wp-content/uploads/2025/07/Criteria-for-Certification-July-2025.pdf