What are the two most common defects of vision (or defects of eye) ? How are they corrected ?

Discuss various common defects of vision.

Name common optical defects of eye. How are thry removed ?

What are the two main defects of vision? State how these are rectified.

What is hypermetropia ? What are the causes of this defect ? How can this defect of the eye be corrected ?

What are main defects of vision? Describe clearly with diagrams how are they corrected?

What are refractive defects of vision ? Why these defects arise ?

Name the three main common refractive defects of vision.

Name one of the common defects of vision and the type of lens used to remove it.