Question

A bifocal lens is used for the correction of ___. The upper part of the bifocal lens is a ___ lens and the lower part is ___.

• A. presbyopia, converging, diverging
• B. presbyopia, diverging, converging
• C. hypermetropia, diverging, focusing
• D. myopia, converging, diverging

Answer 1

The correct option is B presbyopia, diverging, converging

A bifocal lens is used for the correction of presbyopia. A bifocal lens is created with two different areas of vision correction, which are divided by a distinct line that sits horizontally across the lens. The top portion of the lens is used for distance, while the bottom portion of the lens is used for closer vision. So the upper part of the bifocal lens is a diverging lens and the lower part is converging.