adjective
definition
Having two focal lengths
definition
(of a correcting lens) Divided into two parts, one of which corrects for distance vision and the other for near vision
Examples of bifocal in a Sentence
You can get bifocal eyeglasses for as low as $25.00 for the whole package.
If you don't want to be bothered with a pair of reading glasses, consider bifocal contacts.
Eventually those lenses became available in a progressive (line-free bifocal) style.
Some frame styles are not suitable for bifocal lenses and, on the website, these do not offer the bifocal option.
No line bifocal reading glasses are sometimes known as progressive bifocals.
What could be better than inexpensive bifocal glasses without lines?
You can get the bifocal eyeglasses for as low as $79.
While that is expensive compared to most drugstore readers, compared to most eyeglass frames with no line bifocal lenses, it's quite a reasonable price.
If you're finally at the point where you need reading glasses to make it through the day, no line bifocal reading glasses might fit the bill.
This can be corrected with a higher diopter measurement for glasses or the adoption of bifocal or trifocal lenses as needed.
They are clear at the top and have a bifocal power of +1.50 at the bottom.
Because they aren't custom made with your own prescription in the top and a bifocal power in the bottom, you can get them at a reasonable price, often between $25 and $65.
The bifocal section (there is a line) is positioned on the back of the lens, so it's less obvious that you're wearing a pair of bifocal lenses at all.
Choose a frame that is deep enough to hold a bifocal.
Polarized prescription lenses are available in single vision and bifocal versions.
The prescriptions are slightly different between the left and right contacts; they don't work like bifocal glasses where your distance and reading prescriptions are in each lens.
Safety Glasses has prescription and even bifocal safety glasses.
Roughly two millimeters below your pupil is where the top edge of the bifocal should go.
New bifocals wearers will, of course, have an adjustment period just as they would with any type of bifocal.
There are a few reasons you may want to skip the stick on type of bifocal and opt instead for a set of reading glasses if the cost of bifocal lenses is what's putting you off.
This is done to encourage use of the power of the bifocal.
The effect of newer, bifocal, intraocular lens implants is uncertain.
His most direct contribution to medicine was the invention for his own use of bifocal eyeglasses.
Acuvue Bifocal contacts might be the ideal solution for those who suffer from presbyopia.
Presbyopia can be treated in myriad, if not traditional, ways, including reading, bifocal or multifocal eyeglasses.
However, now there are Acuvue Bifocal contacts that are specifically designed for presbyopia.
However, that isn't to say that bifocal wearers cannot find a great match within this line as there are some deep frames in the lineup.
If you are looking for an alternative to reading glasses, bifocal contact lenses may be an option for you to consider.
If reading glasses are not of interest to you, consider bifocal contact lenses.
Each style uses various powers much like an eyeglass bifocal lens does.
The advantage of bifocal contacts is that you won't need to take your reading glasses off and on.
Bifocal contacts are less noticeable than reading glasses since you will not need to look over or under the frames or take them off and on like you would with glasses.
You will be able to instantly see the object clearly no matter what distance it is at when wearing bifocal contacts.
Most bifocal lenses take a period of adjustment.
Acuvue Bifocal are made with a unique design called Pupil Intelligent Design.
Acuvue Bifocal will allow 88 percent of oxygen to your eye.
Another bifocal lenses from Acuvue is the Oasis for Presbyopia.
They are the only bifocal lens that comes in silicone hydrogel, which allows oxygen to the eye.
Ask your eye care professional if wearing bifocal contacts is right for you.
The bifocal portion of the lens will not interfere with your driving if positioned properly.
The difference comes in when it comes to the placement of the bifocal itself.
That way, when you look down in regular reading position, your eyes automatically find themselves looking through the special bifocal lenses.
In a way, though, it is up to you to decide where to put the bifocal lenses.
Also, the measurement is different from the straight top bifocal.
Also, you'll want to ask for a gradient tint so that the bifocal lenses will be darker at the top and get lighter toward the bottom.
However, they are available in progressive or traditional straight top bifocal lenses.
The traditional bifocal design has a prescription for seeing at a distance in the top part of the lens.
In most cases, the bifocal portion is called a "straight top" because the line, as the name suggests, is horizontal across the bottom of the lens (a little lower than halfway down the lenses).
Bifocal lenses like these are not available at the drugstore and will have to be custom-made for you.
You might want to invest in frames that are a little more durable if you can afford it, and you can get bifocal lenses if they fit your needs better.