The near point of a normal eye is 25 cm.
The near point of a Hypermetropic eye is 50cm, What is the power of the lens required to correct this defect? Assume near point of normal eye is 25cm.
The near point of a hypermetropic eye is 50cm. What is the power of the lens required to correct this defect? Assume that the near point of the normal eye is 25cm.
The near point of a person suffering from hypermetropia is at 50 cm from his eye. What is the power of the lens needed to correct this defect? (near point of normal eye is 25 cm)