Corneal stromal lenses are corneal tissues with specific refractive power, created by precisely sculpting an optical lens within the corneal stromal layer using lasers or microkeratomes. With the ongoing development of corneal refractive surgery, a large amount of corneal stromal lenses are generated during procedures, drawing increasing attention from researchers. In China, there exists a severe mismatch between the scarcity of corneal donors and the high demand for surgical procedures. This has led to a critical shortage of donor corneas in eye banks, while the need for corneal tissue keeps rising. Corneal perforation, which is the end-stage of various corneal diseases, poses a significant threat to patients' vision and may even result in enucleation, causing considerable physical and psychological distress. Most cases of corneal perforation require urgent surgical intervention. For patients with severe conditions or those for whom conventional treatments are ineffective, corneal transplantation may be the only viable option. Reusing stromal lenses that were previously discarded to treat corneal ulcers, repair corneal perforations, and assist in managing critical stages of various corneal diseases has shown promising results. This, to some extent, helps alleviate the clinical shortage of donor corneas. This article presents two cases of corneal perforation caused by corneal leukoma, both of which were successfully treated with allogeneic corneal stromal lens transplantation. Both patients achieved stable conditions after the operation. Additionally, this paper discusses the limitations of corneal stromal lens transplantation. The efficacy of corneal lens transplantation for perforations caused by infectious or immunological etiologies was not observed in this study. Therefore, it is essential to accurately diagnose and manage the underlying disease before transplantation and to minimize the occurrence of complications and rejection reactions.
