The defect of vision in which the eye-lens of a person gets progressively cloudy resulting in blurred vision is called:

A student sitting on the last bench in the class cannot read the writing on the blackboard clearly but he can read the book lying on his desk clearly. Which of the following statement is correct about the student?

A man driving a car can read a distant road sign clearly but finds difficulty in reading the odometer on the dashboard of the car. Which of the following statement is correct about this man?

A person cannot see distant objects clearly. His vision can be corrected by using the spectacles containing:

A person finds difficulty in seeing nearby objects clearly. His vision can be corrected by using spectacles containing :