Question

what is the difference between myopia and hypermetropia​

Answer 1

Answer:

Explanation:

Myopia is also called as Near-sightedness.In Myopia, the person can see nearby objects, but cannot see far objects clearly. In Hypermetropia, the person can see far objects clearly, but cannot see near objects clearly.In people with myopia, the image is formed in front of retina in the eye.The size of the eye-ball increases in the myopic people.Myopia can be corrected using Double-Concave lens.

Hypermetropia is called as Far-sightedness.In Hypermetropia, the person can see far objects clearly, but cannot see near objects clearly.In people with hypermetropia, the image is formed behind the retina in the eye.The size of the eye-ball decreases in the hypermetropic people.Hypermetropia is corrected using the Double-Convex lens.

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Answer 2

Answer:

MYOPIA VS HYPERMETROPIA

• Myopia is also called as Near-sightedness.

• Hypermetropia is called as Far-sightedness.

NATURE

• In Myopia, the person can see nearby objects, but cannot see far objects clearly.

• In Hypermetropia, the person can see far objects clearly, but cannot see near objects clearly.

IMAGE

• In people with myopia, the image is formed in front of retina in the eye.
• In people with hypermetropia, the image is formed behind the retina in the eye.

EYE-BALL

• The size of the eye-ball increases in the myopic people.

• The size of the eye-ball decreases in the hypermetropic people.

FOCAL LENGTH

• In myopia, the focal length of the eye lens decreases.
• In hypermetropia, the focal length of the eye lens increases.

CORRECTED USING

• Myopia can be corrected using Double-Concave lens.

• Hypermetropia is corrected using the Double-Convex lens.

LENS

• To correct myopia, we need to select a lens which forms an image at the far point for an object at infinity.

• To correct hypermetropia, we need to use lens which forms an image of an object beyond near point when an object is placed between near point and least distance of clear vision.

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