what is a dsaek graft
View this page as pdf file (19k). DSAEK is a new type of partial-thickness corneal graft operation in which only the inner endothelial cell layer is replaced, instead of the whole thickness of the cornea as happens in a conventional full-thickness graft (penetrating keratoplasty).he surface of the cornea is an extremely important component of the optical system of the eye, so any irregularity in the corneal shape has a major effect on visual performance. Because DSAEK only exchanges the inner cell layers of the cornea it has little or no effect on its external shape.