Lens Types

At Zoom Optics, we know that no two people are the same, and we’re dedicated to finding the best lens type for you. Whether you’re after a glasses lens replacement or just want to find out more about different lens types, we’re sure we have something to suit. Our expert staff will guide you through the options and ask questions about your lifestyle in order to find the lens most suited to your needs.

Single vision lenses

The most commonly prescribed lenses; these have the same focal power over the whole lens. They’re set to be used for one viewing distance only, and correct the wearer’s vision either up close or at long distances for an affordable yet perfectly serviceable option.

Bi-focal lenses

Bi-focals are a versatile option that are designed to offer two fields of vision. They have no correction for the intermediate distance, though. The lenses are sectioned into two distinct parts. The larger top part of the lens allows the wearer to see distant objects, whilst a small part of the bottom section allows the wearer to see objects in close distance. Generally, the wearer looks up when focussing on points further away, and down when focussing on reading material or any other objects within 18 inches.


These revolutionary lenses allow the wearer to see both close-up and far off objects seamlessly. Instead of just having two lens powers like bifocals, progressive lenses are true “multifocal” options with a progression of lens powers. With a continuous, gradual change from distance to intermediate to near vision, you get the best of both worlds, from the one set of lenses. They may take a bit of getting used to, but once you’ve had a bit of experience wearing these innovative lens types, you’ll wonder how you did without it.


Compared to glass lenses, plastic lenses are more impact-resistant and lighter than glass lenses, making them the standard in the optical industry. UV protection and tinting can also be added to the lens to further meet your needs. Because of their cost-effective nature, safety and versatility, plastic lenses are a popular and attractive option.


Polycarbonate is one of the strongest, safest materials around, and lenses made of this material are very popular for several reasons. Because of their innovative construction, polycarbonate lenses are up to 27% lighter than ordinary plastic lenses, allowing the wearer a higher degree of comfort. They’re also a lot thinner than other lenses; making them less noticeable when fitted to a wearer’s frames, as well as being 10 times more impact-resistant than ordinary plastic lenses, reducing the risk of eye injury. Need protection against the elements? These lenses block 100% of UV rays for a comprehensive option.


Hi-Index lenses are perfect for those with higher strength prescriptions. Available in a number of indexes, these lenses can be made thinner, lighter and flatter than was previously possible for a convenient option. The lenses are compressed, which allows for better optical viewing without compromising their aesthetics. Previously, people with a high prescription would have to suffer through the discomfort of wearing heavy, bulky lenses, but Hi-Index lenses feel lighter on the nose. The flatter shape also prevents distortion of images, making them a great option for many people.

Now that you know more about the different types of glasses lenses, why not pop into our stores now or book your eye test online?