Defects of vision and their correction - How do spectacles work?
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byjus.com
Defects of vision and their correction - How do spectacles work?
Watch to learn how and why spectacles/contact lenses are used to correct defects of vision and how exactly they affect the human eye. The demonstration in this video uses lasers and lenses to simulate what happens inside the human eye. You can see how an eye with myopia (shortsightedness, nearsightedness) and an eye with hypermetropia ...
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