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What is a corrective lens
and how does it work?
A corrective lens is a lens that is put in front or even right onto the eye in order to change the speed and angle of the light so that the rays land right on the retina and produces a clear image.
How+corrective+lenses+work - Google Search. (n.d.). Retrieved March 01, 2016, from https://www.google.com/search?site=&tbm=isch&source=hp&biw=1366&bih=599&q=how%2Bcorrective%2Blenses%2Bwork&oq=how%2Bcorrect&gs_l=img.3.0.0j0i8i30l9.1939.3498.0.6326.11.11.0.0.0.0.132.963.8j3.11.0....0...1ac.1.64.img..0.11.962.28BKH6Aen_Q#imgrc=MuyBz223XEeD0M%3A
How corrective lenses work
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