Healthy normal eye (emmetropia):Without refractive errors the light rays from an object enter the eye and are focused on the retina and the image is perfectly sharp. REFRACTIVE ERRORSNearsightedness (or Myopia)Nearsighted people have good near vision, but they need glasses for far away.Nearsighted people have a longer eyeball so that … Continue reading The Eye
Copy and paste this URL into your WordPress site to embed
Copy and paste this code into your site to embed