Web22 aug. 2013 · Your eyes see, but how does vision happen? Find out how the eyes and brain work together in this eye video. WebYour eye care specialist will perform a visual acuity test each time you visit them to track any changes in your vision. A visual acuity test can help diagnose common conditions that affect your vision, including: Nearsightedness (myopia). Farsightedness. Astigmatism. Presbyopia. Color blindness. When should I have my eyes examined?
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