In long-sightedness (hypermetropia)

safaTerkawi

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2022-08-11

In long-sightedness (hypermetropia).

Objects at infinity cannot be focused sharply on the retina.
Objects at the usual near-point are focused behind the retina.
Ciliary muscle contracts more strongly to bring objects in mid-visual range into clear focus.
The range of unblurred vision (near-point to far-point) is greater than normal.
The near-point can be brought closer to the eye by the use of a biconcave lens.

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safaTerkawi

2022-08-11

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A. False This is true of shortsightedness (myopia).

B. True The eye is usually shorter than normal.

C. True This distance is closer than usual to the hypermetrope’s near point.

D. False It is less than normal; the far point stays at infinity but the near point is further away.

E. False A convex lens is required to augment the power of the eye’s refracting system.

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