what is myopia plz complain it
Answers
Answer:
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MYOPIA :
Some people cannot see objects at long distances but can nearby objects clearly. This type of defect vision is known as "Myopia".It is also known as Near Sightedness. For these people the maximum focal length is less than 2.5 cm.
To correct this type of defect vision we need to choose a lens which forms a clear image on retina. Therefore the lens is Bi - concave lens.
Explanation:
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MYOPIA :
Myopia (nearsightedness) is a refractive error. Refractive error is when the eye does not bend (refract) light properly. Light does not focus correctly so images are not clear. In myopia, close objects look clear but distant objects appear blurred.
CAUSES OF MYOPIA :
→Myopia occurs when the eyeball is too long, relative to the focusing power of the cornea and lens of the eye. This causes light rays to focus at a point in front of the retina, rather than directly on its surface.