Methods and systems for diagnosing and treating presbyopia
Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.
1. A wearable ophthalmic system for addressing presbyopia comprising:
a display device comprising:
a stacked waveguide assembly comprising transmissive beamsplitter substrates configured to be worn on a person and to output light into an eye of the person to form an image in the eye, wherein the transmissive beamsplitter substrates are waveguides, and wherein at least one of the transmissive beamsplitter substrates is configured to project light appearing to originate from a different depth plane than an other of the transmissive beamsplitter substrates; and
a light source configured to output light, for forming the image, into the stacked waveguide assembly;
a sensor configured to determine an orientation of a gaze of the person; and
an adaptive optics element through which light from an ambient environment and the light output from the light source are directed to the person, wherein the adaptive optics element is configured to modify respective focuses of the light from the ambient environment and the light output from the light source in the eye based on the orientation of the gaze of the person.
2. The device of claim 1 , wherein the orientation of the gaze of the person is determined based on a position of a head of the person.
3. The device of claim 2 , further comprising gyroscopic sensors configured to determine the position of a head of the person.
4. The device of claim 1 , wherein the orientation of the gaze of the person is determined by tracking a position of the eye.
5. The device of claim 1 , wherein the stacked waveguide assembly is configured to output the light from the light source with a divergent wavefront towards the adaptive optics.
6. The device of claim 5 , wherein the waveguide is part of a stack of waveguides, wherein waveguides of the stack comprise diffractive optical elements providing optical power and configured to output light with wavefront divergence corresponding to a discrete depth plane associated with an individual waveguide.
7. The device of claim 5 , further comprising an other adaptive optics element on a side of the stack of waveguides opposite the adaptive optics element.
8. A wearable ophthalmic device comprising:
a light source configured to output light for forming an image; and
wearable optics comprising a stacked waveguide assembly comprising transmissive beamsplitter substrates each configured to receive the light from the light source and to output the light with wavefront divergence corresponding to an associated discrete depth plane,
wherein the wearable optics are configured to direct the light into the eye of the person wearing the wearable optics to form the image in the eye, the wearable optics configured to correct for presbyopia based on an optical prescription for the eye.
9. The device of claim 8 , further comprising user interface controls configured to receive input from the person specifying the person's optical prescription.
10. The device of claim 8 , configured to present the person with different wavefront corrections to identify an optical prescription of the person.
11. The device of claim 10 , further comprising a user interface configured to receive input from the person specifying the preferred optical prescription correction.
12. The device of claim 10 , further comprising a biofeedback system configured to determine the wavefront correction based on monitoring one or more properties of the eye while viewing the image.
13. The device of claim 12 , wherein the biofeedback system receives inputs from at least one of a phoropter, an autorefractor, and an eye tracking system.
14. The device of claim 12 , wherein the properties of the eye is at least one of: changes in a convergence point of the eye, changes in a position of a head of the person, and changes in a size of a pupil of the eye.
15. The device of claim 8 , wherein the wearable optics comprises adaptive optics in the wearable optics configured to be adjusted to implement the optical prescription correction.
16. The device of claim 15 , wherein the adaptive optics comprises a variable focus element.
17. The device of claim 15 , wherein the adaptive optics comprises a deformable optical element.
18. The device of claim 17 , wherein the deformable optical element comprises a deformable mirror.
19. The device of claim 8 , wherein the waveguide stack is configured to provide the prescription correction.
20. The device of claim 19 , wherein the waveguide stack comprises a combination of waveguides configured to provide optical power providing the optical prescription correction for light propagating through the combination of waveguides.
21. The device of claim 20 , wherein different waveguides of the waveguide stack have different optical power.
22. The device of claim 8 , wherein the wearable optics are configured to output the light with wavefront divergence corresponding to different depth planes, the wearable optics configured to provide different image content corresponding to the different depth planes.
23. The device of claim 8 , wherein the wearable optics comprises at least one waveguide comprising a dynamic optical element having variable optical power.
24. The device of claim 8 , further comprising a sensor to determine an orientation of the person's head, wherein the wearable optics is configured to alter the focus of the image based on the head orientation.
25. The device of claim 8 , further comprising an eye tracking system configured to determine a person's convergence point.
26. The device of claim 25 , wherein the wearable optics is configured to alter a focus of light forming the image based on the determined convergence point.
27. The device of claim 8 , wherein the device comprises an augmented reality system configured to provide the optical prescription correction to augmented reality image content.
28. The device of claim 27 , wherein the wearable optics are configured to apply the optical prescription correction to light from the light source and to light from and forming images of an ambient environment beyond the wearable optics.
29. The device of claim 8 , further comprising electronics configured to determine the person's gaze based on movement of one or more of the person's eyes, wherein the wearable optics is configured to alter the focus of light forming the image based on the determined gaze.
30. The device of claim 8 , further comprising electronics configured to determine if the person is focusing at a near-field focal depth based upon a tracking of the person's head, wherein the wearable optics is configured to increase the optical power based on the optical prescription for the person's eye and the tracking.
31. The device of claim 8 , further comprising electronics configured to determine the person's gaze based on glint detection, wherein the wearable optics is configured to alter the focus of light forming the image based on the determined gaze.
32. A wearable ophthalmic system for addressing presbyopia comprising:
a display device comprising:
a stacked waveguide assembly configured to be worn on a person and to output light into an eye of the person to form an image in the eye, the stacked waveguide assembly comprising a plurality of waveguides separated by weak lenses, wherein each of the weak lenses is configured to add wavefront divergence to light propagating therethrough; and
a light source configured to output light, for forming the image, into the stacked waveguide assembly;
a sensor configured to determine an orientation of a gaze of the person; and
an adaptive optics element through which the light is directed to the person, wherein the adaptive optics element is configured to modify a focus of the light in the eye based on the orientation of the gaze of the person.
33. A wearable ophthalmic device comprising:
a light source configured to output light for forming an image; and
wearable optics comprising a stacked waveguide assembly comprising a plurality of waveguides separated by weak lenses, wherein each of the weak lenses is configured to add wavefront divergence to light propagating therethrough, wherein the stacked waveguide assembly is configured to receive the light from the light source and to output the light with wavefront divergence corresponding to an associated discrete depth plane,
wherein the wearable optics are configured to direct the light into the eye of the person wearing the wearable optics to form the image in the eye, the wearable optics configured to correct for presbyopia based on an optical prescription for the eye.
34. The device of claim 8 , wherein each transmissive beamsplitter substrate has an associated diffractive out-coupling optical element and is configured to output light from the light source via the associated diffractive out-coupling optical element.