A short sighted person may read a book without specs. Comment.

A short - sighted person may read a book without spectacles. Comment.

A short-sighted person can read a book only up to 15 cm from his eyes. To read a book placed at a distance of 25 cm from him what type of spectacles should he use? What be the power of the spectacles?

A far sighted person has a near point of 60 cm. What power lens should be used for eye glasses such that the person can read a book at a distance of 25 cm.

A short sighted person is wearing specs of power -3.5 D . His doctor prescribes a correction of + 2.5 D for his near vision. What is focal length of his distance viewing part and near vision. What is focal length of his distance viewing part and near vision part ?

Write short note on : Red data book

Down's syndrome may occur in both sexes. Comment.

A hypermetropic person has problem in driving without specs.

A short sighted person cannot see clearly beyond 2m. Caclulate the power of lens required to correct his vision.

A short sighted person cannot see clearly beyond 2 m . Calculate power of the lens required to correct his eye to normal vision.