Argus II retinal prosthesis system: a review of patient selection criteria, surgical considerations, and post-operative outcomes

Figures & data

Figure 1 An intraoperative photo shows the internal components of the Argus II device including the coil, the electrode array, and the band which is positioned around the eye.

Note: Photo courtesy of Shawn Rocco, Duke Health News and Communications.

Figure 2 A patient wearing the Argus II device demonstrating the glasses and external coil on the side arm which transmits data between the device’s external and internal components (white arrow).

Notes: Photo courtesy of Shawn Rocco, Duke Health News and Communications. Patient has provided written informed consent for publication of the image.

Figure 3 (A) Intraoperative view demonstrating the external band and coil sutured to the sclera. Black arrows point to the sutures tied from the external coil to the sclera. The cable has also been positioned through the sclerotomy. (B) Intraoperative view of tacking of the electrode array. (C) Post-operative fundus photo showing a well-positioned electrode array resting on the macula in a patient with retinitis pigmentosa. White arrow points out tack on the array.

Figure 4 Post-operative optical coherence tomography shows a well-positioned electrode array in close apposition to the retinal surface.

Note: The image on the left is the en face view with a green line showing the position of the OCT B scan seen in the image on the right.

Figure 5 Microscope integrated intraoperative OCT images demonstrating the distance of the electrode array to the retinal surface during implantation.

Notes: The figure shows a three-dimensional reconstruction of the array (left), a B scan showing the array to retina distance (center), and an en-face view (right). The green line marks the level of the OCT scans seen in the images on the left. These images were obtained through a project funded by the NIH Bioengineering Research Partnership Grant: R01-EY-023039 “Intraoperative OCT Guidance of Intraocular Surgery” (Joseph Izatt/Cynthia Toth).
Abbreviation: OCT, optical coherence tomography.