bifocals


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bifocals

/bi·fo·cals/ (bi´fo-k'lz) bifocal glasses.
References in periodicals archive ?
The new Acuvue contact lenses, developed by Johnson and Johnson, are not so much bifocal as multifocal.
Soft bifocals exist but are less successful and therefore less available than RGP lens designs.
To prepare for a data breach now and understand what to do should a crisis occur is truly the definition of a bifocal view of cyber risk--and the source of security today and in the future.
Furthermore, although a significant difference in myopia progression rates between the bifocal and single vision lenses was reported for a three-year period, statistically significant changes only occurred in the first two years of the trial.
But please don't laugh too loudly: You, too, could someday sport Garfield bifocals.
Surprisingly, the children with bifocals also accommodate more accurately when looking over the top of their bifocals through the distance part of the lens.
to replace bifocals with electric lenses that can switch quickly from one type of focus to another.
These include bifocal (for close and distance seeing) or multifocal (for close, intermediate and distance viewing) contact lenses.
As Franklin aged, deteriorating eyesight inspired another invention: bifocals.
Besides experimenting with electricity, this great man invented bifocals, the Franklin stove, and the odometer (an instrument that measures distances).
Why are we running two pages of service anniversaries, when the type is so small that the very people we're supposed to be recognizing can't read their own name without putting bifocals on?
I wore bifocals when I bought my first computer and quickly realized there had to be a better way.