Reddit user Philawesomeraptor's girlfriend recently received a cornea transplant for a condition called keratoconus, which causes structural changes to the cornea, and drastically distorts vision. These are her stitches.
There are other images of cornea stitches out there, but this one is especially beautiful. Apparently she is doing well, and her vision is improving in the eye that was operated on, so good news all around. [Reddit]