A varifocal lens is a lens which have varying focal length, so the focus keeps changing due to the change of focal lengths as compared to parfocal lens which remain in focus. The different apart of lens are optimized for various distance to help to see near to far and everything in between. It is the most advanced type of lens.
Types of varifocal lens
There are three types of varifocal lens standard, advanced and elite. These types are on the bases of the way they are made and can be tailored for specific purposes.
Standard varifocal lens
They have wide focal area for distance and reading in between. They can be used instead of bifocal as they have clear vision. It offers a standard view from all distances. If you have never worn varifocal lens, then you should start with this one because you can wear them for a very long time without having a headache or feeling fatigue.
Advanced varifocal lens
They have a wider vision area. They offer much clear vision at all points and they are more significant in terms or vision, clarity, focus and ease to adaption. You will have a less distortion in your peripheral view. If you know how to use varifocal lens, then you should go for this type of lens.
Elite varifocal lens
They have the widest field vision of all focal points and they are tailor made to your exact vision. They are customized to best fit within your frame, these both generates an optimized varifocal to provide you with best vision at greater distance.
Do varifocal lens make your eyesight worse?
No, they do not make it worse, but some people may not have the ability to tolerate varifocal lens which can cause in headache or pain in eyes. Some people move their eyes a lot instead of their head and people having neck problems or vertigo may have the difficulty in using varifocal lenses.
Common problems with varifocal glasses
The most common problem with varifocal lens or glasses is that people are unable to focus. They may feel dizziness, headache. The varifocal glasses are a bit tricky as there might be a slight distortion in your peripheral vision around the edge of the frame. Thus, when you roll your eyes from one point to another your vision may be a little bit distorted or blurry. So, to avoid this distortion on should move or tilt their head as well with the movement of eyes. You are not able to focus because your eye and brain needs some time to adjust to different zones of focal length and refractive index.
Who Makes the Best Varifocals in 2021?
Here are some of the more popular brands and varifocals in 2021:
Essilor - “Varilux Comfort NE”, “Varilux Physio 3.0” & “Varilux X Series”
Nikon - “Presio”, “SeeMax Master”
Hoya - “GP”, “iD Lifestyle”, “Summit”. “Balansis”, “MyStyle”
Carl Zeiss - “Zeiss Progressive Individual 2” & “Zeiss Progressive Plus 2”
FAQS
Do I really need varifocals?
Varifocals are ideal for correcting your slightness. It will be useful if you need intermediate correction. The lens in our eye loses its elasticity and varifocal helps to maintain our focus. It gradually changes the distance power to reading power
Should varifocals be worn all the time?
Varifocals lens are designed to correct your vision at different distances intermediate or close. So, it is completely safe for you to wear them all the time because you need them for your eyesight. At the beginning it can be a bit difficult to adjust but eventually it will be easier as you will develop its habit.
What is the difference between bifocal and varifocal lenses?
A bifocal will provide you with only two distances but on the other hand varifocal lens will provide you with different distances so you can see at any distance. Bifocal consist of two different power strengths in on lens and varifocal is the modified version of bifocal and advanced technology lens.