What are longterm effects of a corneal transplant?

Long term effects. Long term risks after corneal transplant include graft rejection, infection, regular and irregular astigmatism, weaken eye structure at risk for rupture with trauma, glaucoma, cataract, dry eye, etc.
Usually work well. It depends on several things such as the cause of the corneal opacification, and the donor tissue source. Patients with keratoconus do very well and can have the donor corneas last decades. If the cause is burns, infections or trauma, there can be vascular ingrowth around the cornea, and the donor tissue may experience some rejection that may require treatment.