Exhausted from squinting your eyes to read your favorite book or unable to see road signs? Or do you fit into both categories? If you are experiencing the same situation, bifocals could be the solution. But first, what exactly are bifocals, and why are they the perfect glasses for you? Continue reading to discover.
The Banana Republic Glasses provide additional degrees of vision, allowing you to transition between multiple visions more easily.
What are bifocals?
Let’s start with the fundamentals. Bifocals are spectacles or contact lenses with two strengths in one lens. ‘Bi’ indicates two, while ‘focal’ refers to the lens’s focus. Bifocals often have two zones. The lower half is for closed eyesight. Consider reading, writing, knitting, or any other type of close, focused viewing.
Distance vision is served by the top half of the lenses of your Banana Republic eyeglasses. That entails reading road signs, watching movie screens, and recognizing approaching blobs as genuine humans with faces. Aside from varied prescriptions, each portion of the lenses is also formed uniquely.
You most likely have presbyopia if you require two strengths for your Banana Republic sunglasses. The natural cause of the problem is the aging of the eyes, which is more common in older persons. As we age, our eye lenses thicken and stiffen, becoming less flexible and decreasing our close vision.
Apart from that, athletes and medical professionals are excellent candidates for bifocals. These are known as occupational bifocals, and they are particularly customized to the wearer’s prescribed tasks.
Let’s go a little deeper now.
Different kinds of bifocal lenses
The upper half of bifocals is for distant vision, and the bottom half is for near vision. However, that is only a half-truth. There are several varieties of bifocals based on the two vision zones of the lenses that are shaped. Let’s dissect it:
- Bifocal executive or straight
The bifocals are called executive bifocals. These have a visible line across the lens that separates the two prescriptions. The upper part of bifocal lenses allows you to look far away, while the bottom half allows you to see close up.
- D segment or half moon
The near vision portion of these bifocals resembles a capital D. This segment is positioned near the lens’s bottom, but it does not cover the complete bottom half of the lens, as with executive bifocals. It floats instead. The half-moon component of the lens is dedicated to distance vision.
- Round section
Within the lens, a round section bifocal appears as a circle. The circle contains the near vision portion. The near vision part floats towards the lower center of the lens, just like half-moon bifocals.
- Ribbon section
For the close vision prescription, a ribbon section bifocal lens has a center band that runs straight across the lens. The ribbon contains the distance vision portion on its above and below the surface.
Difference between progressive and bifocals
You may have heard the term “progressive lenses” if you’ve considered bifocals with your optometrist. But they are different from each other. Bifocals clearly separated the near and far vision parts of the lens. The line is even visible on the spectacles.
Progressive lenses, also known as multifocal lenses, provide a smoother change between multiple prescriptions. The Banana Republic glasses frames provide additional degrees of vision, allowing you to transition between multiple visions more easily. From top to bottom, progressive lenses integrate distance, mid-vision, and near-vision. Intermediate vision is required for computer use, TV viewing, and other multiple tasks that are at some distance.
Some individuals choose progressives because they are simpler to adjust to than bifocals. After all, the transition is more visible. Others prefer bifocals because the defined lines make it easy to understand where to focus via the lens for the sort of vision correction required.
How do bifocals differ from reading glasses?
It’s easy to mix up reading glasses and bifocals. Because the near vision component of your glasses does exactly that, bifocals are frequently advertised that let you read better.
However, there are a few important distinctions between readers and bifocals:
- Reading glasses, which are used to enlarge text on a digital device or page, can only aid with presbyopia. Banana Republic prescription glasses with reading lenses are referred to as single-vision lenses. Bifocals can correct both near and far vision.
- Bifocals can be worn all day. Reading glasses are often used only for tasks requiring close eyesight, such as reading and stitching.
Are bifocal lenses right for you?
If you notice that both your near and far vision is worsening and you want to avoid the trouble of switching glasses during the day, bifocals may be the solution for you. However, multifocal or progressive lenses may be preferable if you desire a more seamless transition between multiple prescriptions on your corrective lenses.