Single Vision Lenses.
Single vision lenses are prescribed if you need correction for one field of vision, either for distance (driving), intermediate (computers) or items up close (reading). A single vision lens has the same optical focal point over the entire surface area of the lens from the centre to the periphery allowing the wearer to experience perfect vision from any angle.
A bifocal lens is created with two different areas of vision correction, which are divided by a distinct line that sits horizontally across the lens. The top portion of the lens is used for distance, while the bottom segment of the lens is used for closer vision. Bifocals are available with different size reading segments ranging from 24mm up to the full width of the lens. The most common is the flat top D28 as shown below.
Varifocal Lenses (ultra wide design)
Varifocals are lenses with no visible line or reading segment that are used to correct distance vision, intermediate or computer vision and close-up reading vision. Our most advanced Varifocal design is the computer generated ultra wide or free form varifocal which offers superior optical quality with less peripheral distortion. Varifocal glasses are very easy to use and you will adapt to them very quickly. Varifocal glasses are positioned so that as you look through the top of the lens your distance vision will be clear and in focus. To read, the gaze is simply lowered so that your eyes will now be looking through the lower reading portion of the lens. Varifocal lenses also have an additional benefit in that they have an intermediate power range which is useful for ‘in between’ distances such as looking at shelves in a supermarket or the dashboard of your car and you simply lower or raise your head slightly until the view comes into focus.
High Index Lenses
High-index lenses are made from materials that allow them to be made thinner, lighter and flatter than standard lenses thus making them cosmetically appealing to people with stronger than average prescriptions. High Index lenses also offer superior visual performance and clarity. We currently manufacture a comprehensive range of thinned plastic lenses in 1.61, 1.67 and 1.74 index.
Polycarbonate lenses are up to 10 times more impact-resistant and 30% thinner than standard plastic or glass lenses and they have the added bonus of being ultra lightweight. It's this combination of durability and weight that make them ideal for rimless and sports glasses.
Transitions are plastic lenses that darken automatically when exposed to sunlight, then fade back when you return indoors. Transitions also offer 100% UV protection making them the ideal choice for active people who love the great outdoors.
Polarised lenses are coated with a special chemical film that helps reduce unwanted glare. Glare is caused when light from the sun is reflected off water or a solid surface. By neutralizing glare, polarised lenses help you see objects more clearly, and also help reduce the harmful effects of UV light.
Anti-reflection coated lenses (or 'AR' coated) will not only improve your vision and reduce eye strain they will also make your glasses look more attractive. This fantastic coating significantly reduces glare from car headlights at night, fluorescent/strip lighting and tv, tablet and computer screens.
Coloured Tint & UV Block
The most common reasons why spectacle wearers have their lenses tinted are for fashion and to look good, as sunglasses to reduce glare and to protect their eyes from Ultra Violet light. Increasingly people are requesting a wide variety of tint colours to match their frames, clothes, makeup or their personality.