Temporary Keratoprosthesis Research Articles

Temporary Keratoprosthesis for Combined Penetrating Keratoplasty, Pars Plana Vitrectomy, and Repair of Retinal Detachment

The Landers-Foulks temporary keratoprosthesis was used to combine penetrating keratoplasty, pars plana vitrectomy, and scleral buckling in the management of 13 eyes with opaque cornea and posterior segment abnormalities. In seven cases, trauma precipitated the ocular disease. Complications of cataract surgery resulted in anterior and posterior segment pathology in six cases. The corneal graft was initially clear in all cases. However, corneal edema complicated phthisis bulbi in four cases and followed homograft reaction in two cases. Eight eyes with retinal detachment (RD) preoperatively were successfully reattached. In five eyes, the retina redetached as these eyes became phthisical. Visual function improved in six cases. In general, eyes with a history of trauma had a much poorer outcome than did eyes with anterior and posterior segment problems related to previous cataract surgery.

Penetrating Keratoplasty after Placement of a Temporary Keratoprosthesis during Pars Plana Vitrectomy

Penetrating Keratoplasty after Placement of a Temporary Keratoprosthesis during Pars Plana Vitrectomy

A NEW TEMPORARY KERATOPROSTHESIS FOR PARS PLANA VITRECTOMY

Using a new temporary keratoprosthesis in an eye with an opaque cornea and a proliferative vitreoretinopathy, a pars plana vitrectomy combined with a silicone oil injection was successfully performed. The new keratoprosthesis is made of silicone rubber and is fixed to the threphined corneal bed with four 10-0 nylon sutures. It permits an excellent view of the intraocular structures and allows vitreoretinal surgery even in the region of the pars plana and vitreous base. It is replaced by a corneal graft at the end of the vitrectomy.

Long-term Experience with the temporary Intraoperative Keratoprosthesis in Vitreoretinal Surgery

Foulks, Gary N; McCuen, Brooks; Cobo, L Michael; landers, M B; Hicckingbotham, Dyson; Machemer, Robert Author Information

Penetrating Keratoplasty After Placement of a Temporary Keratoprosthesis During Pars Plana Vitrectomy

Penetrating Keratoplasty After Placement of a Temporary Keratoprosthesis During Pars Plana Vitrectomy

Penetrating Keratoplasty After Placement of a Temporary Keratoprosthesis During Pars Plana Vitrectomy

Five eyes of five patients with opaque corneas underwent penetrating keratoplasty after pars plana vitrectomy. In each case, the Landers-Foulks temporary keratoprosthesis provided visualization of the vitreous cavity and retina, allowed successful removal of hemorrhagic vitreous, and permitted retinal reattachment. Corneal grafts remained clear in two eyes; three grafts developed stromal edema. Useful postoperative vision was achieved in two eyes. However, proliferative vitreoretinopathy, postoperative hypotony, atrophia bulbi, and corneal edema resulted in poor vision in three eyes.

Temporary Keratoprosthesis for Use During Pars Plana Vitrectomy

We have developed a series of temporary keratoprostheses that permit closed pars plana vitrectomy in eyes with abnormal corneas. These devices are placed into a trephined opening in the cornea, and provide a clear, stable view of the intraocular contents. Immediately after vitrectomy, the keratoprosthesis is replaced with a corneal graft. We have used this technique successfully in four eyes with opaque or severely traumatized corneas.