Perfusion Device Preserves Donor Eye Function for Whole-Organ Transplant

Researchers deployed a closed-loop perfusion circuit that delivers oxygenated media and removes metabolites from donor globes within minutes of enucleation. Bench tests showed maintained electroretinogram amplitudes at 70% of baseline after six hours, versus near-total loss in controls. This extends the viable window for optic nerve reconnection during transplantation surgery.

Data from ex vivo models indicate preserved retinal ganglion cell viability and axonal transport, addressing the core failure in the 2023 NYU whole-eye case where photoreceptor function collapsed within hours. Parallel advances in microsurgical nerve anastomosis and immunosuppression protocols now align with this preservation step.

Operationally the system reduces reliance on living-related donors and enables centralized eye banks to stock functional tissue. Scaling requires GMP validation and integration with existing corneal transplant logistics, shifting whole-eye procedures from experimental to scheduled interventions within five years.

The development underscores persistent biotech throughput gains outside AI coverage cycles, where measurable physiological metrics replace narrative projections.