Argus II Retinal Prosthesis Implantation in a Patient With a History Of Strabismus Surgery:A Surgical Technique.

Background And Objective: The authors describe a modified surgical technique for Argus II retinal prosthesis implantation.

Patients And Methods: The modified surgical technique was performed in a 43-year-old male with retinitis pigmentosa (RP) who underwent strabismus surgery in that eye at age 8.

Results: During Argus II implantation, the lateral rectus (LR) was noted to be 10 mm posterior to its original insertion due to prior strabismus surgery. The authors placed three 5-0 nylon mattress sutures at the expected location of the LR to support the external portion of the prosthesis, specifically the coil. The band was then passed through the mattress sutures, underneath the inferior, and medial recti with temporal placement of the coil.

Conclusion: Placement of three mattress sutures allowed proper positioning of the device and enabled fixation of the suture tabs, thus minimizing the risk of postoperative conjunctival erosion and device exposure. [Ophthalmic Surg Lasers Imaging Retina. 2019;50:116-119.].