Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
eye myopia anatomy eyeball hypermetropia nearsightedness farsightedness retina reflective error cornea vector human diagram iris structure illustration optic lens organ short sightedness nerve ball section pupil body sclera vision ocular system long presbyopia hyperopia tissue surface view ophthalmology membrane sight eyesight orbit choroid astigmatism disorder disease focus disc blur