Make a diagram to show how hypermetropia is corrected. The near point of a hypermetropic eye is 1 m. What is the power of the lens required to correct this defect? Assume that the near point of the normal eye is 25 cm.

When do we say that a particular person is suffering from hypermetropia ? List two causes of this defect. Name the type of lens used to correct this defect.

TextHypermetropia or Far-sightednessCorrection of Vision Defects Using Lenses

Assertion: Hypermetropia is due to increase in focal length of eye lens. Reason: Due to increase in focal length the rays coming from the object meet before retina.

Assertion-ReasonHypermetropia or Far-sightedness

A person is suffering from both myopia and hypermetropia.

CASE_STUDIESMyopia or Near-sightednessHypermetropia or Far-sightednessCorrection of Vision Defects Using Lenses

What kind of lens can correct it this defects?

TextMyopia or Near-sightednessHypermetropia or Far-sightednessCorrection of Vision Defects Using Lenses