Methods and apparatus for making a determination about an eye in ambient lighting conditions

A method comprising:

• capturing, using an image capture device, an image of an eye of a subject, wherein said image is captured using only ambient lighting conditions and wherein non-relevant reflections from a cornea and a lens of the eye of the subject are managed while capturing the image;
• determining, using a computing device, an overall intensity of light from a plurality of pixels located within at least a portion of a pupil captured in the image, wherein the plurality of pixels comprise red, green, and blue pixels;
• determining, using the computing device, an average red intensity from the plurality of pixels located within the at least a portion of the pupil captured in the image;
• determining, using the computing device, an average blue intensity from the plurality of pixels located within the at least a portion of a pupil captured in the image;
• and
• determining, by the computing device, using the average red intensity , the average blue intensity and the determined overall intensity an optical quality of the eye.