A varifocal lens is a camera lens with variable focal length in which focus changes as focal length (and magnification) changes, as compared to a parfocal ("true") zoom lens, which remains in focus as the lens zooms (focal length and magnification change).

Here we explain everything about varifocal lenses, including how they were first developed, the different types, and the pros of cons to using this lens. Varifocal lenses provide continuous vision for all distances in a single lens, and correct presbyopia.

Here are all the varifocal options available to you in your local Vision Express store and online. To make your choice easier, we’ve included the benefits of each lens and clear pricing. Varifocals are the best solution when more than one prescription is needed to correct your vision.

2022年7月7日 · Varifocal lenses are an upgrade to trifocal and bifocal lenses. In most cases, these two traditional glasses have visible telltale lines in the lenses. In contrast, varifocal lenses have a seamless look.

2021年10月31日 · Progressive lenses allow smooth, clear vision from near to far in one lens – without image jumps or transitions. Progressive lenses are therefore a unique feat of optical technology, and producing them requires a lot of know-how, a vast amount of optical calculation and exact knowledge of the wearer's personal parameters.

Varifocal lenses (also called progressive or multifocal lenses) are a specialty lens that corrects both near and distance vision. This means that if you have presbyopia and another refractive error like nearsightedness (also known as myopia ), farsightedness (hyperopia), or astigmatism, these lenses can help you see at different distances for ...

2021年10月31日 · Progressive lenses allow smooth, clear vision from near to far with one lens – and all without image jumps or transitions. Dizziness and headache, a stiff neck, fatigue and constantly tripping when going up the stairs – there are many stories about the problems encountered by wearers as they get used to new progressive lenses.

A varifocal gradually changes the power from the top by the pupils, all the way down to the very bottom of the lens, which has got the strongest reading power. You've got the power there for every distance away from you.

If you’re debating the pros and cons of varifocal lenses and which type is right for you, this helpful guide breaks down the features of our three varifocal lens options, from entry-level to premium Omni-Vision HD lenses.

Varifocal lenses, also known as progressive lenses, are designed to give you clear vision at all distances, eliminating the need for multiple pairs of glasses. In this guide, we'll walk you through everything you need to know about these lenses, from …