Are there no line bifocals

Most people are wearing an anti-reflective coating to prevent their eyes from irritating mirror-like effects on their lenses. What happens in classic bifocals is that the edge of the reading window is more visible and can produce such effects.

You are constantly aware of the window for near range tasks. Some people love it because they can find the reading window so easy compared to progressives where you need to test where the sharp reading area is. We recommend going with progressives first. Because the benefit you get from a smooth transition between distance and the reading power oftentimes outweighs the smaller area of reading. If you need a lot of power in your reading glasses the reading area will be a lot smaller in a progressive lens compared to a bifocal one.

The size of the reading area varies for the progressives and the stronger it has to be the smaller your field of view gets. Going back and forth with your classic bifocals such as with the line between the distance and the reading power can cause some dizziness because most traditional bifocal lenses produce a slight jump of the picture while switching the field of view. If your glasses are not perfectly fitted like the pantoscopic tilt is higher than it should be another angle does not sit like it should be aberrations will come up.

Those effects usually tend to make the image a little blurry. You can experience this effect if you look through your glasses and while you grab the temples tilt it and watch what happens. In progressive glasses, this effect comes more into play. It can even change the size of the reading area or the part which is meant to be for distance vision. It largely has to do with you looking through the glass from another angle.

Oftentimes people experience this effect while driving. While driving a lot of people are used to do big eye movements. Looking into the mirrors from side to side while switching the lanes. However, with progressive lenses, you are practically forced to move your head more with you as you look in a certain direction.

The reasons are aberrations that cause a blurry image on the sides. This effect is enhanced if you are looking behind you because you want to cross lanes and make sure there is no other car.

A lot of people hold their heads in an oblique position and what happens is they are looking straight through the blurriest part of the progressive lenses. That usually does not happen with bifocal lenses because there is still a sharp area for you to see depending on the size of the reading field you choose.

While some people struggle to adapt to the progressive lens design, including the peripheral distortions, there are several tips that can ease the process. First and foremost, remember to look through the central portion of the lens. If you are trying to look at an object that is off to your side, point your nose towards the object first so your eyes are directly facing the correct direction. This reduces the fishbowl effect of the peripheral distortions.

Also remember to take caution with stairs and steps when you are first getting used to the lenses, as your depth perception may be off when looking through the bottom of the lenses. Most people are able to easily and happily adjust to progressive lenses within a few weeks of wear.

Presbyopia is Nothing to Fear Read Post. Schedule Appointment. The No-Line Bifocal Design Progressive lenses incorporate a power gradient which provides three different prescriptions in one lens. Advantages of Progressive Lenses There is a big cosmetic appeal for no-line bifocals. Adapting and Adjusting While some people struggle to adapt to the progressive lens design, including the peripheral distortions, there are several tips that can ease the process.

That being said, many customers who are already accustomed to progressives like our zero top multi focals. Keep in mind that they're NOT good for driving, as that variable magnification is located right in your line of site. Multi focals are best for office use, where people often need different powers for reading their computer monitor, phone and papers on their desk.

The BEST products if you like bifocals but don't want others to see a line are "hidden bifocals". They're easy for your eyes to use, but they have the added advantage of disguising themselves so when other people look at you, it's less obvious that you're wearing bifocals.

Again, there really is no such thing as a bifocal with no line. Check out our clearance and every day low price sale items. Related Posts. Recent posts.