Light field processor system

1. A wearable ophthalmic device, comprising:

a head-mounted light field display configured to generate a physical light field comprising a beam of light and to direct the beam of light into a user's eye, thereby producing a retinal reflex;

a head-mounted photodetector array configured to receive the retinal reflex and to generate numerical image data; and

a light field processor configured to control the light field display, to analyze the retinal reflex using the numerical image data, and to determine an optical prescription for the user's eye based on the analysis of the retinal reflex.

2. The device of claim 1 , wherein the light field processor is further configured to computationally introduce an amount of positive or negative optical power to the beam of light based on the analysis of the numerical image data.

3. The device of claim 1 , wherein the photodetector array is part of a light field camera and the numerical image data comprises numerical light field image data.

4. The device of claim 1 , wherein the light field display comprises an integral imaging display.

5. The device of claim 1 , wherein the photodetector array is integrated with the light field display.

6. The device of claim 1 , further comprising a disc with at least two pinholes, the disc being positioned in front of the eye such that the beam of light passes through the pinholes.

7. The device of claim 1 , wherein the light field processor is configured to analyze the retinal reflex to determine the focus of the light on the retina.

8. The device of claim 1 , further comprising an outward facing head-mounted light field camera configured to receive light from a user's surroundings and to generate numerical light field image data, wherein the light field processor is configured to computationally modify the numerical light field image data based on the analysis of the retinal reflex.

9. A method of using a wearable ophthalmic device, the method comprising:

generating a physical light field comprising a beam of light and directing the beam of light into a user's eye using a head-mounted light field display, thereby producing a retinal reflex;

receiving the retinal reflex and generating numerical image data using a head-mounted photodetector array; and

controlling the light field display, analyzing the retinal reflex using the numerical image data, and determining an optical prescription for the user's eye based on the analysis of the retinal reflex using a light field processor.

10. The method of claim 9 , further comprising computationally introducing an amount of positive or negative optical power to the beam of light based on the analysis of the numerical image data using the light field processor.

11. The method of claim 9 , wherein the photodetector array is part of a light field camera and the numerical image data comprises numerical light field image data.

12. The method of claim 9 , wherein the light field display comprises an integral imaging display.

13. The method of claim 9 , wherein the photodetector array is integrated with the light field display.

14. The method of claim 9 , further comprising transmitting the beam of light through a disc with at least two pinholes, the disc being positioned in front of the eye.

15. The method of claim 9 , further comprising analyzing the retinal reflex to determine the focus of the light on the retina using the light field processor.

16. The method of claim 9 , further comprising:

receiving light from a user's surroundings and generating numerical light field image data using an outward facing head-mounted light field camera; and

computationally modifying the numerical light field image data based on the analysis of the retinal reflex.