These are the most simple and common form of lens to correct any prescriptions needed for distance or near vision. To correct distance vision, concave lenses are used. These are thinner at the centre than the edge. To correct near vision prescriptions, convex lenses are used. These are thinner at the edges than the centre.
These lenses are used when a combined prescription is needed for distance and near vision. The near vision part of the lens is placed at the bottom of the lens is either a D shape or a circle (rounded). As a segment is added to the lens, bifocals are not as aesthetically pleasing as varifocals, however a rounded segment is less obvious than the D shape.
These lenses have 3 parts to them; distance, intermediate and near vision. These are ideal for people with a combined prescription that need clear vision for distance, close up work/reading and for an intermediate range such as computers. Varifocal lenses are a little harder for first time wearers to get used to as they have a corridor vision. This means the vision is through the centre of the lens not to the edges like a single vision lens. the high quality freeform varifocal lenses we use have the widest corridor possible, making it easier for first time wearers.
Scratch Resistance Coating - will protect your lenses from being scratched as easily. It can protect against damage and prolong the life of your lenses.
Anti Reflective Coating - will eliminate any glare and reflection from light reflection, especially for night time driving and computers.
Tint - is used to at different gradients to protect eyes from UV light. A dark tint can be used to make prescription lenses into sunglasses.
Polarized - will eliminate glare from the special filter coating that blocks intense reflected light, reducing glare.
Transition - ideal for those wanting to combine sunglasses with prescription glasses. They are light adjusting lenses that react to sunlight getting darker on direct light exposure and lighter when light exposure is minimised.
Standard 1.5 - these lenses are FREE with all prescription glasses. More suitable for lower power prescription under +/-3. This is because the higher the prescription the thicker the lens and the heavier they become.
Thin 1.6 - these lenses are approximately 20-30% thinner than standard lenses. More Suitable for prescriptions from +/-3 Ideal for thinner frames.
Ultra Thin 1.67 - these lenses are approximately 30-40% thinner than standard lenses. More suitable for prescriptions from +/-4. As they are thinner and lighter they are ideal for delicate frames like semi-rimless
Extra Thin 1.74 - these lenses are approximately 50-60% thinner than standard lenses. More suitable for stronger prescriptions over +/-6. As these are the thinnest available they will work with all frame types.