i have amazing eye sight.
[{"role": "system", "content": "Visual acuity (VA) commonly refers to the clarity of vision. Visual acuity is dependent on optical and neural factors, i.e., (i) the sharpness of the retinal focus within the eye, (ii) the health and functioning of the retina, and (iii) the sensitivity of the interpretative faculty of the brain. A common cause of low visual acuity is refractive error (ametropia), or errors in how the light is refracted in the eyeball. Causes of refractive errors include aberrations in the shape of the eyeball, the shape of the cornea, and reduced flexibility of the lens. Too high or too low refractive error (in relation to the length of the eyeball) is the cause of nearsightedness (myopia) or farsightedness (hyperopia) (normal refractive status is referred to as emmetropia). Other optical causes are astigmatism or more complex corneal irregularities. These anomalies can mostly be corrected by optical means (such as eyeglasses, contact lenses, laser surgery, etc.). Neural factors that limit acuity are located in the retina or the brain (or the pathway leading there). Examples for the first are a detached retina and macular degeneration, to name just two. Another common impairment, amblyopia, is caused by the visual brain not having developed properly in early childhood.\n"}, {"role": "assistant", "content": "So, is your eyesight 20/20? Do you have visual acuity?"}, {"role": "user", "content": "I have 20/20 eyesight, just had it checked last week. "}, {"role": "assistant", "content": "The eye charts used were developed in 1862?"}, {"role": "user", "content": "Wow, I did not know that. That was a long time ago. One of the oldest professions. "}, {"role": "assistant", "content": "Yes.  It is. Visual acity is dependent also on the  sensitivity of the interpretive faculty of the brain."}, {"role": "user", "content": "How do they test for that? "}, {"role": "assistant", "content": "I don't exactly know how they test the interpretative faculty of the brain except for the combination of retinal focus and health of the retina"}, {"role": "user", "content": "Any truth to foods helping?"}, {"role": "assistant", "content": "I believe lumine found in egg yolks helps with visual acuity."}, {"role": "user", "content": "I eat a lot of eggs so that is good"}]