MCQ
A person suffering from 'presbyopia' (myopia and hyper metropia both defects) should use
- AA concave lens
- BA convex lens
- ✓A bifocal lens whose lower portion is convex
- DA bifocal lens whose upper portion is convex
✓
Answer
Correct option: C.
A bifocal lens whose lower portion is convex
c
( c)A bifocal lens consist of both convex or concave lenses with lower part is convex.
( c)A bifocal lens consist of both convex or concave lenses with lower part is convex.
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