Argus II® Retinal Prosthesis System

Argus II® Retinal Prosthesis System Performance

  • 100% patients could consistently perceive visual percepts when the device was activated
  • 96% patients demonstrated objective visual function improvement with the system activated in a task that required them to locate an object on a computer screen
  • 57% patients were able to improve their ability to discriminate the direction of motion of a line on a computer screen with the system activated
  • 23% patients were able to demonstrate a measurable improvement in visual acuity when using the system as determined by a grating visual acuity test
  • 54-82% patients were consistently better at navigating a line on the floor using the Argus II System
  • 52-60% patients were consistently better at locating a door using the Argus II System
  • 72-96% patients were better at recognizing characters (23 cm letters and numbers from a distance of 30 cm) using the Argus II System.

INTENDED USE
The Argus II System is intended to provide electrical stimulation of the retina to induce visual perception in blind individuals.

INDICATIONS FOR USE
The Argus II System is indicated for use in individuals who meet the following criteria:
- Adults, age 25 years or older.
- Severe to profound outer retinal degeneration.
- Some residual light perception. If no residual light perception remains, the retina must be able to respond to electrical stimulation.
- Previous history of useful form vision.