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1. A far sighted person’s right eye has a near point that is 1200 mm in...

1. A far sighted person’s right eye has a near point that is 1200 mm in front of the eye. To enable the
eye to see an object at a normal near point of 25 cm,

(a) What is the power in diopters of a contact lens needed?

(b) What is the power of lens needed in diopters that is placed 15 mm from the front of the eye?

2. A near sighted person’s left eye has a far point that is 8000 mm in front of the eye. To enable the
eye to see an object at a normal far point of infinity, what is the power of a contact lens in diopters that
should be used.

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