Compensating corneal opacity
An electronic intraocular device is implantable into the capsular bag of a wearer's eye. In some cases, the intraocular device may include a femtoprojector. The femtoprojector projects images onto the wearer's retina when the electronic intraocular device is implanted in the wearer's eye. Different haptic designs may be used to keep the femtoprojector in position. In some embodiments, an imager is contained in a contact lens worn by the wearer. Images captured by the contact lens imager may be relayed to the intraocular femtoprojector. In some cases, the intraocular device may include an electronic capsular tension ring with a femtoimager. The femtoimager may capture images of the wearer's retina, for example for purposes of monitoring eye health.
1. A system for compensating corneal opacity of a patient, the system comprising:
a contact lens mountable on the patient's eye, the contact lens containing a camera that captures images of a patient's external environment;
an implantable intraocular device comprising a femtoprojector, wherein the intraocular device is insertable into a capsular bag of the patient's eye and the femtoprojector is positioned to project images onto the patient's retina when the intraocular device is implanted in the patient's eye; and
a signal path from the camera to the femtoprojector, for processing and transmitting images captured by the camera for projection by the femtoprojector; wherein the contact lens further contains an infrared transmitter, the intraocular device comprises an infrared receiver; and the signal path includes the infrared transmitter, the infrared receiver, and wireless transmission from the infrared transmitter to the infrared receiver.
2. The system of claim 1 wherein a line of sight of the camera is aligned with a line of projection of the femtoprojector.
3. The system of claim 1 wherein the contact lens does not transmit sufficient oxygen to meet safety standards for a person with normal eyesight.
4. The system of claim 1 wherein the contact lens is opaque in a central region and would obstruct a vision of a person with normal eyesight.
5. The system of claim 1 further comprising:
a plurality of motion sensors that each sense a motion of the patient's eye; wherein the intraocular device comprises at least one of the motion sensors, the contact lens contains at least another of the motion sensors; and
a processor that receives motion data captured by the plurality of motion sensors and tracks the motion of the patient's eye based on the received motion data.
6. The system of claim 1 further comprising:
power components in the intraocular device and in the contact lens for transmitting power between the intraocular device and the contact lens.
7. The system of claim 1 further comprising:
a plurality of cameras contained in the contact lens, wherein the signal path switchably connects one of the cameras to the femtoprojector.
8. The system of claim 1 wherein the intraocular device has an opaque central region.
9. The system of claim 1 wherein the intraocular device further comprises electronic components located in a central region of the intraocular device, and the electronic components would obstruct a vision of a person with normal eyesight.
10. The system of claim 1 wherein the images projected by the femtoprojector are not compensated for rotation of the patient's eye within the patient's eye socket.
11. The system of claim 1 wherein when the intraocular device is implanted into a patient's eye having a damaged fovea, the femtoprojector is oriented within the intraocular device to project images onto the patient's retina away from the damaged fovea.
12. The system of claim 1 wherein the intraocular device comprises at least two femtoprojectors.
13. The system of claim 12 wherein at least two of the femtoprojectors are redundant.
14. The system of claim 12 wherein at least two of the femtoprojectors project images onto a same area of the patient's retina but are different in at least one of: spatial resolution, and span of eccentricity.
15. The system of claim 12 wherein at least two of the femtoprojectors project images of different colors onto a same area of the patient's retina.