An infusion temporary keratoprosthesis for pars plana vitrectomy.
OBJECTIVE
To develop a temporary keratoprosthesis with integrated infusion cannula to minimize retinal complications during pars plana vitrectomy in eyes with an opaque cornea.


METHODS
The wide-field temporary keratoprosthesis has been modified to include an integrated infusion cannula. The 20-gauge cannula runs from the periphery of the corneal flange, bends 90 degrees, and enters the eye after passing through the periphery of the corneal cylinder.


RESULTS
The infusion wide-field temporary keratoprosthesis has been used successfully in three cases without the need to place a separate infusion, which risks iatrogenic retinal breaks or retinal dialyses. Droplet condensation on the posterior surface of the infusion temporary keratoprosthesis was reduced compared with the standard temporary keratoprosthesis.


CONCLUSIONS
We have developed a wide-field temporary keratoprosthesis with an integrated infusion cannula for use during pars plana vitrectomy in eyes with severe corneal opacity. This device eliminates the risk of complications related to the pars plana infusion cannula.
Benner
J D
JD
Retina and Vitreous Center, Virginia Beach, VA 23454, USA.
Landers
M B
MB
D002404:Catheterization / Q000295:instrumentation*; D003315:Cornea / Q000601:surgery*; D003318:Corneal Opacity / Q000150:complications; D004322:Drainage / Q000295:instrumentation; D006801:Humans; D007431:Intraoperative Complications / Q000517:prevention & control; D020366:Methylmethacrylate; D008768:Methylmethacrylates; D019736:Prostheses and Implants; D011474:Prosthesis Design; D012164:Retinal Diseases / Q000517:prevention & control; D012826:Silicone Elastomers; D014821:Vitrectomy
D008768:Methylmethacrylates; D012826:Silicone Elastomers; D020366:Methylmethacrylate