Conjunctival erosion is a complication that has been reported after Argus II retinal prosthesis (Second Sight Inc) implant.1,2 Once a dehiscence of the conjunctiva has occurred, it may be difficult to restore its integrity and may lead to device explantation.1 A patient who received an Argus II retinal prosthesis for retinitis pigmentosa 4 years ago presented with recurrent exposure of the device’s case tabs due to conjunctival erosion. In the past, 3 conjunctival revision surgeries were performed, with subsequent substantial scarring of the conjunctiva. To avoid explant of the device, a full-thickness corneal transplant was used to cover the device’s case tabs and the sclerotomy. The corneal graft was sutured to the sclera and covered with Tenon capsule plus conjunctiva. The Figure shows the eye 3 months after surgery.
Rommel F, Grisanti S. Corneal Allograft Treatment for Conjunctival Erosion Caused by Electronic Retinal Implant. JAMA Ophthalmol. 2020;138(1):e190051. doi:10.1001/jamaophthalmol.2019.0051
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