Use of operating telescopes with multifocal corrective lenses

Many older practitioners who wear spectacles with multifocal lenses for surgery work have been told that they cannot use flip-up magnifying telescopes with these owing to the difficulty of positioning them over the appropriate part of the lens and therefore must resort to normal bifocals. They thereby lose the advantages of clear vision at all distances which multifocals give. This article describes a way of overcoming this problem.