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A varifocal lens will incorporate your distance, intermediate and reading prescription by gradually increasing the power as you look further down the lens. There should be a smooth transition of power as you move gaze from the top "distance" area of the lens, through to the "intermediate" area designed for mid distance, and finally to the lower lens that has your prescription needed for reading/close work.
We have found the considerable visual benefits combined with the obvious cosmetic advantages have now made the varifocal more popular than bifocals, that limit vision to 2 distinct focal areas of distance and reading and have a visible line separating the two.
Rear Surfaced Varifocals
The very first varifocals were a very primitive design.
Irving Rips at Younger Optics developed the first commercially viable blended lens in 1955 called the Younger Seamless Bifocal.
That lens would be unrecognisable to the design of modern varifocals.
Huge jumps in computing power now allow us to create lenses custom made to match your prescription and frame.
Standard varifocals have the reading progression moulded on the front surface of the lens, using a standard template designed to work for as wide a range of wearers as possible. A "one size fits all" approach.
With the use of complex algorithms and advanced computer eye modelling, we can now place the varifocal progression on the rear surface, individually customised to give the best vision for your prescription.
In addition to this, having the progression on the lens surface closest to the eye will result in wider fields of clear vision for the wearer.
You can expect up to 50% wider viewing zones when compared to a standard varifocal.
Adaptation to rear surfaced varifocals is easier and quicker than to traditional varifocals.Despite this, there is a small percentage of people that do not have 100% success with them. There is a small possibility that you do not adapt to a varifocal, and we can not offer the same level of aftercare as a high street provider.
We are however always keen to help. If you experience any difficulty with your varifocals or have additional questions answered before ordering then please contact us.
Our varifocals and rear surfaced varifocals are available in standard index, Super Thin 1.6 index, Ultra Super Thin 1.67 index, and Ultra X Super thin 1.74 index. Also Tinted, Photo-chromic and Polarised options are available.