Revolutionizing vision using corneal 3D printing

Corneal diseases remain a leading cause of blindness, and corneal transplantation is the primary treatment for severe cases. However, the persistent shortage of donor corneas significantly limits this approach. Artificial corneas with engineered biomaterials designed to mimic the structure and function of native corneal tissue offer a promising alternative, and significant progress has been made, including FDA approval and clinical trials. Among emerging technologies, 3D printing enables personalized customization of implants tailored to patient needs, anatomy, and pathology. This method also enables precise control over the biomaterial composition and integration of living cells within the implant, enhancing post-transplantation regeneration. In this review, we examine the advancements in 3D-printed, proregenerative artificial corneas, focusing on innovative biofabrication and the challenges that remain in ensuring implant quality.