LENSES FOR SPECIALISED USE

COMPUTER LENSES are designed so the monitor and papers next to it are in focus when the head is held in a natural position.

DOUBLE D TRIFOCALS are sometimes prescribed for people who need close vision overhead.

These lenses have a reading area at both the top and the bottom of the lens
and are often helpful to pilots, electricians and others who need clear near
vision when looking up as well as down.