Lenses

In recent years there have been major developments in spectacle lens technology, all designed to improve your vision and to make your spectacles more comfortable to wear and to look more attractive.

We are happy to discuss and advise the most suitable lens required for your life style and individual visual requirements. There being so many lens combinations now available, we feel that our expert advice can help you make the correct choice for your needs within your budget. Ask us if there are any offers on at the moment or click here.

There are three main types of lenses available:

Single Vision Lenses

Single Vision Lenses have only one prescription incorporated into the lens. They are usually used for distance, intermediate (computer length / VDU) or reading.

AdvantagesDisadvantages
Easiest to adapt to

Inconvenient as you might need to have multiple pairs for different reasons / tasks and will have to swap and store multiple pairs
No distortionCan be more expensive when you have multiple pairs
Normally the cheapest type of lens

Bifocal Lenses

Bifocal Lenses have two prescriptions incorporated into the lens. This is done by using a segment of different shapes and sizes, the most common being a sideways D shape causing a visible line across the lens. Usually the distance is in the top and reading in the segment.

AdvantagesDisadvantages
Cost effective way of having more than one prescription in the lensCosmetic as some people are very conscious of the line
Easier to adapt to compared to VarifocalsThe floor is blurred when walking around as are looking through the segment
There are no distortions and a large reading areaDependent on what prescription is used in the segment there is a reduced focal range so usually no middle vision
Usually cheaper than having a separate pair of distance and reading single vision glasses because there is just one frame

Progressive Powered Lenses (PPL) also known as Varifocal Lenses

Varifocal lenses are the most complex lens type, gradually blending multiple prescriptions in one lens. They are the modern alternative to bifocal lenses (without the line). They are generally advised to people over the age of 40, normally when separate distance and near prescriptions are required giving you clear vision at all distances as an all-in-one pair when looking through the correct part of the lens. There are many options of lens designs to choose from which we will be able to advise you on and the latest developments.

AdvantagesDisadvantages
This is the nearest you will get to getting your old vision back. They are harder to adapt to, due to the design of the lens, there will always be distortion to the edges but going for a better lens reduces this amount.
Multiple lengths of focus within the lensThey can be more expensive than other options.
Cosmetically looks the same as single vision as they don’t have the line
Varilux X Series

Other Lens Options and Upgrades

Lens Coatings

They are advised to reduce annoying reflections, improve the appearance of your spectacles and most importantly to enhance you vision. More recent advances in technology now means you can get the added benefit of them being anti-scratch, anti-dust, repellent to water, grease and dirt making them more durable and a lot easier to clean.

Crizal Sapphire UV

Photochromic or Transition Lenses

They are fast acting variable tinted lenses which darken in sunlight. Indoors they are clear, but outside they rapidly darken effectively changing them into conventional sunglasses. Photochromic lenses are available in grey or brown tints and Transitions offer a load more options and all offer 100% protection against damaging UV light.

High Index Lenses

In the past, some patients who have had a more complex prescription have had to put up with thicker and heavier lenses in their spectacles. Thankfully today’s advances means the super thin and light weight Hi-index lenses now make them look great and feel more comfortable.

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