So I wear multifocal glasses with 4 lenses in them and I understand how they work. But I can’t understand contacts. How do you look through the different lenses if the contacts move with your eyes?
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The answers regarding multifocal CL’s are good. I’d just add that your glasses do not have “4 lenses in them”. If they’re lined bifocals, there are 2 different zones of power. If they’re lined trifocals, there are 3 zones of power. Trifocals aren’t very common these days. If they’re unlined/”no-line” bifocals aka progressives, there are technically infinite powers bc the power changes gradually between the distance and near portions of the lens. Regardless, it’s still just one lens per eye.
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