Most people can donate their eyes after death, but a defined set of medical conditions disqualifies potential donors because of the risk of transmitting disease to the recipient. The list of disqualifications centers on infections that can survive in eye tissue, certain cancers, and neurological diseases with unknown causes. What surprises many people is that common conditions like diabetes, high blood pressure, poor vision, and even blindness do not prevent someone from being an eye donor. The actual barriers are narrower and more specific than most assume.
Infections That Disqualify Donors
The biggest concern in eye donation is passing an infection from the donor’s tissue to the recipient. Eye banks screen every potential donor’s blood for HIV, hepatitis B, and hepatitis C, and a positive result for any of these means the tissue cannot be used for transplant.1PubMed. Serologic testing of cornea donors These three viruses are the core mandatory screening targets in the United States, though eye banks commonly run additional tests for syphilis, cytomegalovirus, and sometimes HTLV (human T-lymphotropic virus).
Rabies is another absolute disqualification, though it comes up far less often. Corneal transplants have transmitted rabies on more than one occasion. In one documented case, a single donor’s corneas gave rabies to two recipients, both of whom died.2PubMed. Transmission of rabies by corneal graft A separate case involving solid organ transplants from a donor who had been bitten by a bat resulted in all four recipients developing fatal encephalitis within a month.3PubMed. Transmission of rabies virus from an organ donor to four transplant recipients These incidents underscore why any suspicion of rabies exposure eliminates a donor immediately.
Active bacterial or fungal infections of the eye itself, such as keratitis or endophthalmitis, also disqualify a donor. So do systemic infections like active bacterial endocarditis and active septicemia, though the rationale for excluding septicemic donors is increasingly being questioned (more on that below).
Prion Diseases and Creutzfeldt-Jakob Disease
Creutzfeldt-Jakob disease (CJD) holds a unique and feared place in eye banking. It is caused by prions, misfolded proteins that cannot be destroyed by standard sterilization methods. CJD has been accidentally transmitted through corneal transplants, and the consequences are uniformly fatal.4PubMed Central. Rapid Testing for Creutzfeldt-Jakob Disease in Donors of Cornea At least one definite and one probable transmission of sporadic CJD have been linked to corneal grafts, along with several possible cases.5PubMed. Transplantation of ocular tissue from a donor with sporadic Creutzfeldt-Jakob disease
The challenge is that CJD is extremely rare and usually impossible to detect before symptoms appear. Among roughly 45,000 cornea donors in the U.S. each year, only about one or two would statistically be expected to have the disease, and the vast majority of that risk comes from people who are still in the presymptomatic phase, meaning no screening questionnaire or clinical exam would catch them.6JAMA Ophthalmology. Eye Banking and Screening for Creutzfeldt-Jakob Disease If eye banks tried to screen the highest-risk age group with a test that was 90% specific, they would incorrectly reject more than 21,000 healthy donors over roughly 17 years to catch a single symptomatic case. The math makes universal CJD testing impractical, so eye banks rely on medical history reviews, family interviews, and ruling out anyone with known or suspected prion disease, dementia of unknown origin, or a history of receiving a non-synthetic dura mater graft (a procedure historically linked to CJD transmission).
Which Cancers Rule You Out
Cancer-related disqualifications are more nuanced than many people realize. The concern is not cancer in general but specific types that could seed tumor cells into the transplanted eye tissue. The absolute exclusions include retinoblastoma (a childhood eye cancer), ocular adenocarcinoma, malignant tumors of the front part of the eye, leukemias, and active disseminated lymphomas.7EyeWiki. Corneal Donation Blood cancers like leukemia carry elevated concern because malignant cells circulate throughout the body, including to the eye’s blood supply.
For solid tumors, the picture is less clear-cut. A study of over 200 donors who had cancer found that the rate of detectable cancer cells in the eye was low: about 0.6% for solid tumors and about 3.7% for blood cancers. Among 325 recipients who received corneas from donors with a cancer history, not a single case of tumor transmission occurred.8PubMed. Corneal transplantations from donors with cancer That finding suggests many donors with a history of solid tumors could safely donate corneas, particularly when the cancer was localized and treated. Yet cases like a donor with metastatic melanoma whose tissue led to limbal melanoma in a recipient show that exceptions can be dangerous.9Cornea. Donor-Derived Conjunctival-Limbal Melanoma After a Keratolimbal Allograft That particular donor had actually passed all eye bank screening requirements at the time.
Melanomas, tumors of the central nervous system, and cancers that have spread to the lining of the brain (neoplastic meningitis) or lymphatic vessels (lymphangitic carcinomatosis) remain on the contraindication list, even though the evidence behind some of these exclusions is theoretical rather than based on documented transmissions.10PubMed Central. The burden of medical contraindications to corneal donation: Time for review The conservative approach makes sense when the stakes are this high, but it does mean some donors are excluded on precaution alone.
Neurological Conditions and Dementia
A broad category of neurological diseases disqualifies potential eye donors. Beyond CJD, the contraindication list includes dementia of unknown cause, subacute sclerosing panencephalitis, progressive multifocal leukoencephalopathy, and neurological diseases of unknown origin.7EyeWiki. Corneal Donation The concern is partly about prion contamination and partly about the inability to rule out rare transmissible agents when the underlying cause of a brain disease is unclear.
This is where the rules can feel blunt. A person with well-documented Alzheimer’s disease might seem like a safe donor since Alzheimer’s is not known to be transmissible through tissue transplantation. But because diagnosing the precise form of dementia during a short post-mortem evaluation is difficult, and because CJD can mimic other dementias, the default is to exclude donors with unexplained neurological decline. Down syndrome is also listed as a contraindication, likely because of its association with early-onset dementia and the difficulty of distinguishing its neurological features from transmissible causes during a rapid donor evaluation.
Congenital rubella and Reye syndrome round out the neurological exclusions. Congenital rubella can involve persistent viral shedding in tissues, while Reye syndrome, although it primarily affects children, is associated with widespread organ involvement that raises theoretical transmission concerns.
Conditions That Do Not Disqualify Donors
The list of conditions that do not prevent eye donation is longer than most people expect. Diabetes, heart disease, high blood pressure, kidney disease, and most autoimmune conditions are not contraindications. People who wore glasses or contacts their entire lives, people who were legally blind, and people with cataracts can all be eye donors. Even someone who had laser eye surgery (LASIK or PRK) can still donate: their corneas may not be suitable for a standard corneal transplant, but the tissue can still be used for research or for other types of grafts.
Age alone is not a disqualifying factor either, though it affects tissue quality. Corneal endothelial cell density, which is one of the key measures of whether a cornea can be transplanted successfully, does decline with age. Donors under 40 average around 3,100 cells per square millimeter, while donors over 80 average about 2,300.11BMJ Open. Clinical and epidemiological factors affecting donor corneal endothelial cell density Eye banks typically set a minimum threshold around 2,300 to 2,400 cells per square millimeter for transplant suitability, so many older donors still qualify.12PubMed Central. The effect of donor age on corneal transplantation outcome results of the cornea donor study Prior cataract surgery (which leaves the eye “pseudophakic”) does reduce endothelial cell density substantially: only about a quarter of corneas from eyes with artificial lenses meet the cell density threshold, compared to roughly 87% of eyes that still have their natural lens.11BMJ Open. Clinical and epidemiological factors affecting donor corneal endothelial cell density So cataract surgery does not disqualify you, but it does reduce the odds your cornea will be transplant-grade.
Deaths From Poisoning Are Usually Fine
This is one of the more counterintuitive findings in eye banking. People who die from acute poisoning, including methanol, organophosphate compounds, snake bites, cyanide, carbon monoxide, and a range of pharmaceutical overdoses, can generally still donate their corneas. A narrative review of the evidence found that acute exposure to these substances is generally not toxic to corneal tissue.13Kerala Journal of Ophthalmology. Can cornea be retrieved from poisoned donors? A focused narrative review The poisons kill through systemic organ failure, but the cornea, which is avascular (it has no blood supply), is relatively shielded from circulating toxins.
This matters because poisoning deaths make up a meaningful share of potential donors in many countries, and unnecessarily excluding them shrinks an already tight supply of transplantable tissue. Some eye banks have historically been cautious about accepting poisoning-death donors, but the evidence suggests this caution costs more donated corneas than it saves in safety.
The Time Window After Death
Even when a donor is medically eligible, the clock starts running the moment they die. Eye tissue degrades outside a living body, and the time between death and tissue preservation matters for transplant quality. As the interval stretches, the corneal epithelium (the outermost layer) is increasingly likely to slough off. In one study, the rate of recipients having an epithelial defect on the first day after surgery rose from 14% when the death-to-preservation interval was under four hours to 100% when it exceeded ten hours.14PubMed Central. Effect of death-to-preservation time on donor corneal epithelium
That said, modern preservation techniques have extended the usable window. Research has shown that corneal tissue procured up to 72 hours after death can still meet quality standards for transplantation, provided it is properly handled and evaluated afterward.15PubMed Central. Cornea Procurement and Processing up to 72 Hours: No Risk for Cornea Transplant Quality The distinction is between how quickly the tissue is initially preserved (which affects surface-layer integrity) and the overall viability of deeper corneal layers, which hold up longer. Most eye banks aim to retrieve tissue within six to twelve hours, but donor eligibility is not strictly lost at any single cutoff.
How Behavioral Risk Factors Are Assessed
Medical history is only part of the screening. Eye banks also evaluate behavioral risk factors that increase the likelihood of an undetected bloodborne infection. The donor’s next of kin is typically interviewed about the deceased person’s medical and social history. Questions cover intravenous drug use, recent incarceration, sexual history, and any exposures that raise the probability of HIV, hepatitis B, or hepatitis C that might not yet show up on a blood test. A donor who engaged in high-risk behavior for bloodborne viruses within a defined window before death may be excluded even if their serological tests come back negative, because of the possibility that an infection was too recent to be detected.
The screening process is similar in structure to what blood banks use, adapted for the specifics of tissue donation. The underlying logic is that serological tests have a “window period” during which a freshly infected person tests negative despite carrying the virus. Behavioral screening fills that gap.
Are Too Many Donors Being Excluded?
There is a growing debate in the transplant community about whether the current list of medical contraindications is unnecessarily broad, shrinking the supply of donor corneas at a time when global demand far exceeds availability. Researchers have pointed out that the contraindication list includes diseases where the transmission risk is entirely theoretical, with no documented case ever occurring, particularly certain neurodegenerative diseases and some hematological cancers.10PubMed Central. The burden of medical contraindications to corneal donation: Time for review
Sepsis is one area where the evidence is shifting. Active septicemia has traditionally been a contraindication, but a recent study examining ocular tissue from septicemic donors found that sepsis did not significantly affect the sterility of the eye tissue itself. The researchers concluded that transplantation guidelines could benefit from review, given the potential to increase the pool of usable tissue.16PubMed Central. Microbiological spectrum and probability of transmission of infection from ocular tissues of enucleated eyes harvested from septicemic donors The cornea’s lack of blood vessels may partly explain why systemic bloodstream infections do not reliably contaminate it.
Similarly, the exclusion of donors who test positive for HTLV (human T-lymphotropic virus) is not mandated by the FDA for ocular tissue donors. FDA regulations do not require HTLV testing of eye donors, and a positive result does not automatically make a donor ineligible under federal rules.17Eye Banking and Corneal Transplantation. Policy, Position, and Research Subcommittee Review of HTLV-1 and HTLV-2 Serologic Testing Yet many eye banks test for it anyway and reject positive donors as a precaution, adding to the number of usable corneas that go unused.
None of this means the contraindication list should be gutted. The consequences of transmitting a fatal infection through a corneal graft are irreversible, and caution has been the default philosophy for good reason. But as the evidence base grows, certain exclusions that were established decades ago when far less was known about tissue-specific transmission risks may deserve reconsideration, particularly in regions where corneal blindness is widespread and donor tissue is scarce.
What Happens When a Cornea Cannot Be Transplanted
Being medically disqualified from donating a cornea for transplant does not necessarily mean your eyes are useless after death. Eye tissue that fails transplant criteria can still be valuable for medical research and surgical training. Researchers studying corneal diseases, testing new surgical instruments, or developing artificial corneas rely on human tissue that may not meet the strict standards of a transplant-grade graft but is perfectly suitable for laboratory work. Scleral tissue (the white part of the eye) has different and generally less restrictive suitability criteria than the cornea and can sometimes be recovered even when the cornea itself is not viable.
This means that registering as an eye donor can still contribute to medicine even if you have a condition on the disqualification list. The decision about which tissues to recover and how to use them is made by the eye bank after evaluating the donor’s full medical profile, not by the donor or their family beforehand. If you have registered your intent to donate, the eye bank will determine what is safe and useful at the time.
Emerging Infections and an Evolving List
The contraindication list is not static. As new pathogens emerge, eye banks have to decide whether to add screening criteria. Zika virus, for example, was found in the vitreous fluid (the gel inside the eye) of an asymptomatic donor, raising questions about whether corneal and other ocular tissue could transmit the virus. West Nile virus prompted similar discussions a decade earlier. Each new outbreak forces a reassessment of what to test for and whether the risk of transmission through avascular tissue like the cornea is meaningful or negligible.
The practical challenge is that adding every theoretically risky infection to the exclusion list compounds the donor shortage without necessarily improving safety. Eye banks and regulatory agencies have to balance the precautionary principle against the very real harm caused by corneal blindness in the millions of people worldwide who are waiting for a transplant. The disqualification criteria will keep evolving, likely becoming more granular as better diagnostic tools and more transmission data allow eye banks to distinguish genuine risks from theoretical ones.