Question

a person with a myopic eye cannot
See objects beyond a distance of 1.5m.
what would be the power of the
corrective lens used to restore proper
vision ?​

Answer 1

Answer:

concave lens

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Answer 2

Answer:

The power of myopic corrective lens with vision at 1.5 m  =  -0.66 D

Explanation:

To correct myopia or nearsightedness concave lens is used.

Myopic persons cannot see objects beyond a distance of 1.5 m and hence the correction must be to reduce the eye’s focusing power, so minus lenses are used.

The minus lenses focus the image directly on the retina. The power of lenses is expressed in Diopters.

The lens power for a corrective myopic glass begins with a minus sign. The power of lens according to the lens formula is: , where D is the lens power in Diopter and f the focal length.

So if the focal length is 1-5 m, then the power of corrective lens for myopic patient would be:

                                        

So, the power of myopic corrective lens with vision at 1.5 m  =  -0.66 D.