Different Strength Bifocals
Purpose
Sometimes, visual correction requires that each eye has unequal strength lenses. The unbalanced bifocal reading glasses below allow distant objects to be seen without the need to remove the glasses.
Description
These bifocals have a lower lens for reading and an upper section that is clear, without any correction. The range of strength combinations for the bifocal lenses is from +1 to +4.0 dioptre.