| 摘要 |
Apparatus is provided having an intraocular device (20) for implantation entirely in a subject's eye, the intraocular device (20) including: a photosensor array (22) having a plurality of photosensors (24), each photosensor (24) detects ambient photons and generates a signal in response thereto. A spatial density of the photosensors (24) in a central portion (26) of the array (22) is greater than a spatial density of the photosensors (24) in an outer portion (28) of the array (22). The intraocular device (20) additionally includes a plurality of stimulating electrodes (30) and driving circuitry (32) coupled to the photosensors (24), and configured to drive the electrodes (30) to apply electrical pulses to a retina of the eye in response to the signals from the photosensors (24). Other applications are also described. |
