Retinal image capturing

1. An apparatus for producing a fundus image, the apparatus comprising:

a processor and a memory;

an illumination component including a light source;

a camera; and

a display,

wherein the memory stores instructions that, when executed by the processor, cause the apparatus to:

display a target element on the display;

display a light source reflection from a cornea of an eye on the display;

update a position of the light source reflection on the display as a caregiver manipulates a position of the apparatus relative to the eye;

as time elapses, modify the display to allow the light source reflection to more easily be positioned within the target element; and

automatically initiate fundus image capture with the camera when the light source reflection is within the target element on the display.

2. The apparatus of claim 1 , wherein the display is modified to change a size of the target element or a threshold for the light source reflection.

3. The apparatus of claim 2 , wherein the light source is an infrared light source.

4. The apparatus of claim 2 , wherein the size of the target element is increased as the time elapses.

5. The apparatus of claim 2 , wherein the size of the target element is increased multiple times as the time elapses.

6. The apparatus of claim 2 , wherein the threshold for the light source reflection is lowered as the time elapses.

7. The apparatus of claim 1 , wherein the target element is shaped as a diamond.

8. The apparatus of claim 1 , wherein the target element increases in size in periodic intervals.

9. The apparatus of claim 8 , wherein an area of the target element increases in size one hundred percent.

10. A method for capturing a fundus image, the method comprising:

displaying a target element;

displaying an infrared light source cornea reflection from an eye;

updating a position of the infrared light source cornea reflection as a position of the apparatus relative to the eye changes;

as time elapses, increasing a size of the target element; and

automatically initiating fundus image capture with the camera when the infrared light source cornea reflection is within the target element on the display.

11. The method of claim 10 , further comprising increasing the size of the target element multiple times as the time elapses.

12. The method of claim 10 , further comprising decreasing a threshold for the light source reflection as the time elapses.

13. The method of claim 10 , further comprising shaping the target element as a diamond.

14. The method of claim 10 , further comprising increasing a size of the target element in periodic intervals.

15. The method of claim 10 , further comprising increasing an area of the target element in size one hundred percent.

16. A method for capturing a fundus image, the method comprising:

displaying a target element;

displaying an infrared light source cornea reflection from an eye;

updating a position of the infrared light source cornea reflection as a position of the apparatus relative to the eye changes;

as time elapses, lowering a threshold for the infrared light source cornea reflection; and

automatically initiating fundus image capture with the camera when the infrared light source cornea reflection is within the target element on the display.

17. The method of claim 16 , further comprising increasing a size of the target element multiple times as the time elapses.

18. The method of claim 16 , further comprising shaping the target element as a diamond.

19. The method of claim 16 , further comprising increasing a size of the target element in periodic intervals.

20. The method of claim 16 , further comprising increasing an area of the target element in size one hundred percent.