from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Spectacles with corrective lenses that have three different powers per eye.


Sorry, no etymologies found.


  • Got exam, two pairs of graduated trifocals and frames for a little over $2000 pesos recently. johanson

    Eye Care

  • I need new trifocals — where can I send you my bill?

    The Volokh Conspiracy » Just Wondering

  • Bartleby said, looking over the top of his trifocals at a smallish stack of documents that I concluded must be important, as well as the reason I was at that moment sitting in the Chief Executive Officer's office.

    Things You Can Do, Some Can't Be Done

  • Progressive lenses and trifocals have intermediate-range correction built in but it's typically so narrow that you have to hold your head at precisely the right angle to hit the sweet spot, which can wreak havoc on neck muscles after just a few minutes.

    Becoming a Squinter Nation

  • Previous studies have found that multifocal glasses, which include bifocals, trifocals and progressive lenses, compromise depth perception and impair balance.

    How Acupuncture May Work

  • But, it's taking me a while to get used to the whole bifocal thing, especially since, really, they're trifocals.

    Day in the Life of an Idiot

  • She set her magazine on a small table next to the rocker and adjusted her trifocals, beaming when she realized who I was.

    The Viognier Vendetta

  • Her dark-framed glasses were, despite her youth, trifocals, I could see by the way her head bobbed slowly as she took in the office and me.


  • Somebody is working on an automatic version, but these are gonna be something for folks who need bi- or trifocals; who wear one pair of glasses at the computer and a different pair for reading or driving.

    Archive 2009-08-01

  • A number of readers wrote in with questions about working at a laptop while wearing bifocals and trifocals.

    Bifocals and Laptops


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