See Also: trifocal lens(medicine)
trifocal(medicine)
trifocal(dictionary)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
Medicine Lodge Memorial Hospital- Medicine Lodge(health)
Orthomolecular medicine (orthomolecular nutritional medicine, orthomolecular therapy)(health)
lens(2)(dictionary)
lens(encyclopedia)
plus lens(medicine)
lens(1)(dictionary)
trifocal lens (medicine)
trifocal lens
A lens with segments of three focal powers: distant, intermediate, and near.
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