Patent ID: 11547778

Abstract:
A technique can consistently achieve thicknesses of ≤50 μm for corneal tissue for Descemet stripping automated endothelial keratoplasty (DSAEK). Grafts with thicknesses of ≤50 μm are also known as nanothin DSAEK (NT-DSAEK) grafts. Evidence shows that using thinner DSAEK grafts, particularly NT-DSAEK grafts, can significantly improve visual outcomes. According to an example embodiment, a method for producing a corneal graft includes drying a donor cornea to cause a pre-cut thickness of the donor cornea to decrease. The method includes, concurrently with drying the donor cornea, determining pre-cut thickness measurements for the donor cornea. The method includes, in response to the pre-cut thickness measurements indicating the pre-cut thickness of the donor cornea has decreased to a predetermined value, cutting the donor cornea to a post-cut thickness of ≤100 μm, or more particularly ≤50 μm, to produce a corneal graft.