These correct either your distance or near vision, but not both using the same lens. For example, single vision lenses can be used for driving and watching TV – or for reading and other close work. Around half of all people wearing glasses have single vision lenses.
These correct both distance and near vision with the same lens. They’re mainly used by people with Presbyopia, a condition which starts to affect nearly everyone over the age of 45. It’s part of the eye’s natural ageing process and means you gradually lose your ability to focus on close objects. You’ll also find you need more light to read.
Bifocals are the traditional solution. The lens is divided into two segments, with distance vision at the top and reading vision below. But there are several drawbacks to this. Bifocals cannot correct intermediate vision, and you may get a feeling of ‘visual jump’ when moving between segments. Having an obvious dividing line across the lens can also make your glasses look old fashioned.
Varifocal (sometimes called ‘progressive’) lenses are the modern choice. These offer you a seamless transition between close, intermediate and distance vision. There are no unsightly dividing lines and you won’t experience a sudden change in focus.
There are many different designs of varifocal lenses. Which one is best for you depends on your prescription and lifestyle requirements. Our dispensing opticians are very experienced in varifocals and will ensure you receive the right design for your individual needs.
If you regularly use a computer, you are likely to experience ‘tired eyes’. This is especially so if you have Presbyopia, because you may find it difficult focusing on both the screen and keyboard.
We can provide a special type of varifocal called degressive lenses. These provide a larger area of intermediate and near vision correction, thus giving proper coverage of the keyboard without unnecessary eye strain. They also enable you to reduce head movement and maintain a more comfortable posture.
Under EU law, your employer may have to pay for you to have an eye test and spectacles for computer use. For further details of eligibility, please contact one of our practices.