Bifocal, Multifocal & Progressive Eyeglasses
Eyeglass lenses with lines are still around, but progressive addition lenses are today's hot ticket for presbyopia.
Eyeglass lenses for presbyopia come in three varieties:
- Bifocals have two vision zones in the lens, for near and distance vision.
- Trifocals have three zones for near, intermediate and distance vision.
- Progressive addition lenses feature a smooth progression of power from the top to the bottom of the lenses, providing clear vision at varying distances.
Both bifocals and trifocal lenses come in a variety of types. For example, there are four kinds of bifocal eyeglass lenses:
- A flat-top or D segment bifocal has a small half-moon segment placed near the bottom of the lens that is dedicated to near-vision correction.
- The round segment bifocal operates the same way the flat-top lens does, except that the smaller segment is circular.
- A bifocal lens that has a ribbon segment has a band that extends from one side of the lens to the other that provides near-vision correction.
- In the case of the Franklin, executive or E style bifocal, the top half of the lens corrects distance-vision while the bottom half corrects near.
Each type of multifocal lens can be fit to the eyeglass frames of your choice. There are many varying types of frames available and you should decide which will be most comfortable for you.
You can also learn more from the manufacturers of these progressive addition lens products:
When in an environment that requires safety glasses and safety goggles it is important not to compromise your vision. Preventative eyewear to protect against eye injury may be available with a prescription for bifocal lenses; check with your eye doctor.
If you prefer contact lenses to traditional glasses there are a variety of multifocal lens options available as well. Ask your eye doctor about bifocal contacts or if multifocal contacts will work for you.
Need More Info?
Your eye doctor or optician can provide further advice, or you can visit the Consumer Guide to Eyeglasses. You can also find eyeglasses through optometrists, other eye doctors and optical stores near you.