Single Vision lenses are used for either short sightedness or long sightedness. They also correct for astigmatism, which many people have. Most people find single vision lenses are ideal until their eyes undergo a natural age-related change called presbyopia, this usually occurs in your mid to late forties. When this happens you may decide to wear two separate pairs of glasses, one for distance vision and one for reading, or you might prefer to try one of the multifocal options described below.
There are many different options, materials and properties to consider when selecting your spectacle lenses.
Learn all about different lenses to help you better understand your opticians’ recommendations.
Single Vision Lenses
Bifocals provide vision at two different distances, usually for long distance and reading, so you can wear one pair of glasses for driving, watching TV, reading and using your smart phone. Bifocals have a visible line on the lens which divides the two areas of vision. One drawback of bifocals is that they don’t provide a specific area for intermediate vision so can be difficult for those who need to use a computer.
A varifocal provides vision at all distances, from far away to close up, including an intermediate area for computer use. Varifocals have no dividing line as the prescription changes gradually throughout the lens.
All varifocals have a somewhat compromised field of vision, as they have an out of focus area at the edges of the lenses. The amount of this blurred area depends on which type or ‘design’ of lens you choose. Our Dispensing Opticians are here to help you select the best lenses to meet your needs.
Occupational lenses are designed for people who spend a lot of time working at close range, such as at a desk. They allow comfortable vision at a range of distances, with the emphasis on the near or desk areas. As with varifocals, our Dispensing Opticians can help you choose the best lens type for your occupation.