Practice on cadaver eyes can be an essential aid for residents and ine
xperienced surgeons in learning operative techniques. Cadaver eyes, ho
wever, have been of only limited utility for teaching highly complicat
ed procedures because of the obscuring of intraocular structures cause
d by the rapid post mortem onset of corneal swelling. We have overcome
this problem by the use of a silicone keratoprosthesis that provides
an excellent view of all intraocular tissues. Our model allows the use
of donor eyes unsuitable for transplantation and facilitates the lear
ning of even complicated cataract surgery, and vitrectomy techniques o
n the human eye. It thus can reduce the rate of complications in opera
tions on patients.