A property of a material that changes the speed of light, computed as the ratio of the speed of light in a vacuum to the speed of light through the material. When light travels at an angle between two ...
Please provide your email address to receive an email when new articles are posted on . At this year’s American Academy of Ophthalmology meeting, I was asked by the International Society of Refractive ...
To compare focometer and autorefractor in the measurement of refractive errors among students in an underserved community of sub-Saharan Africa. A total of 230 students were studied. Mean age of the ...
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