Single Vision Lenses
Bringing new digital technology to the single vision lens
What is a single vision lens?
Standard single vision lenses are the original spectacle lens design – dating back over a hundred years, they provide a single fixed power and are the starting point for most spectacle wearers.
More modern developments of the lenses use digital, freeform surfacing techniques to provide more accurate vision across the lens including some power variation to provide increased comfort and versatility for wearers.
Who is a single vision lens for?
Up until about the age of forty most people’s eyes will naturally ‘accommodate – automatically adjust to focus on objects at different distances. So a single vision lens is used to correct your distance vision and your eyes will do the work to allow you to see close-up.
Over the age of forty the eye starts to lose this flexibility to accommodate on objects at arm’s length and you will need a different prescription for seeing close-up objects. If you are short sighted you may find removing your distance spectacles allows you to see close-up clearly, if you are long sighted, you will need a stronger powered lens for seeing close-up.
Many people choose to use bifocal or varifocal glasses at this stage, for the convenience of having one pair that will do everything, however some patients prefer to have single vision spectacles – in this case, you will need a separate pair for distance and for reading. If you use a computer or play music you might need an additional pair.
Personalised Lens Consultation
If this is already sounding confusing, at Airedale Opticians we won’t leave you to struggle with lens choices. Every spectacle wearer needs a different recommendation, based on your prescription, frame choice, work, hobbies and your current spectacles.
Our optometrists and dispensers have experience of a wide range of different lenses types and thousands of patient fittings, allowing us to provide the best recommendation for you. Call into the practice at any time to discuss lens options, if your last sight test was not with ourselves please bring a copy of your latest prescription to help us provide the best advice.
More about Digitally Enhanced Single Vision Lenses
Freeform Single Vision Lenses
A standard single vision lens is designed to provide clear vision only as you look straight ahead, through the middle of the lens. Looking towards the edge of your lenses, you may notice that vision is not as clear – this becomes more pronounced with stronger prescriptions.
Freeform lenses are digitally designed using the latest technology. Based on your prescription, the frames you have chosen and our careful measurements, each pair is individually calculated to give you the clearest vision all the way to the edge of the lens.
EyeZen and Sync III anti-fatigue Lenses
A new technological development from Hoya and Essilor, these anti-fatigue lenses are designed to reduce the strain on the eyes caused by long periods of close-up work – particularly from mobile phones, tablets and Kindle readers.
Based on the age of the wearer, the lenses include a dual-optical centre design, or a slight reading component to provide clarity in the lower portion, used for viewing computer devices. Call in for more information.
The Essilor EyeZen includes the Eye Protect System, an invisible filter which reduces the amount of blue light reaching the eye, from smart phones and similar devices. This may further help to reduce eye strain and alleviate the effect of blue light on sleep patterns.
Enhanced Reading Lenses
If you require a different prescription for reading and distance, single vision reading glasses have to be set for a fixed reading distance. While this is fine if you only read at one distance, if you like to read from a newspaper, book, magazine and tablet computer or smartphone, you will find that you read at different distances and some might not be as clear.
Enhanced reading lenses include a slight variation in strength across the lens, allowing comfortable reading from close-up to arms-length. Many designs are available for different ranges and prescriptions, including the Hoya AddPower and the Essilor 2V. You might also be interested in occupational lenses that provide a longer range if you spend a lot of time using a computer or playing music.