MATERIALS, COATINGS AND TINTS AVAILABLE

What lens material and design should you choose?

POLYCARBONATE

Polycarbonate is resistant to impact. This material is the most resistant of all. Polycarbonate is 10% thinner than glass and 15% thinner than plastic. Whilst being less sensitive to scratches, polycarbonate is the perfect material for safety spectacles and sports glasses. Excellent resistance to extreme temperatures: -80°C to +135°C. Polycarbonate also has the advantage of absorbing all ultraviolet rays from 280 nm to 380 nm (99.99%). It is more resistant over time with regard to mechanical risks (impacts, scratches, etc.). This material is especially recommended for protection at work.

Transitions

Transitions photochromic lenses are variable tint lenses which activate when exposed to Ultra Violet radiation (UV rays). When the UV light diminishes, Transitions photochromic lenses fade back to clear. Transitions lenses help reduce glare as they automatically adapt to outdoor light Intensity, improving contrast and reducing eye fatigue.

SINGLE VISION

Single vision is the most common type of prescription lens. This lens type has one prescription power throughout the entire lens, for correcting short-sightedness (myopia) or long-sightedness (hypermetropia). Single vision lenses are crafted to help people see clearer at a single distance.

AR coating

Anti-reflective (AR) coating eliminates reflections from the front and back surfaces of lenses. It enables transparent and clear vision, reduces eye strain and permits reflection-free vision for the wearer. AR coating makes your eyes look clearer to other people and have fewer reflections.

Anti-fog

Anti-fog coating prevents the rear lens surface from fogging up. It does this by adsorbing the fog that accumulates on the lens. With anti-fog coating water droplets are absorbed into a thin smooth layer that does not scatter light, hence maintaining clear vision.

PROGRESSIVE

Progressive lenses work the same way as bifocals, helping wearers see clearly at all distances. Unlike bifocal, progressive lenses are line-free and gradually change in power from the top half of the lens to the bottom, and thus contain many lens powers.

POLARISED

Polarised lenses enhances visual quality in bright light by eliminating glare. Ideal for use in all outdoor activities in which there is a high risk of glare. In addition to blocking blinding glare, polarised lenses also help wearers see better by improving contrast and visual comfort.

OPTIONAL EXTRAS

Trivex

Trivex lenses are thin and lightweight (8% lighter than polycarbonate). Trivex lenses may produce sharper central and peripheral vision with less chromatic aberration (coloured halo effect around lights) than polycarbonate lenses. Trivex is not adversily affected by chemicals.

Blue-Shield

Blue-Shield lens coating absorbs blue light that is harmful to the eyes. It transmits as much light as ordinary lenses, while deflecting a significant proportion of the damaging blue light. In addition, it improves contrast and reduces eye strain, is easy to clean, highly durable, and its improved anti-reflection enhances visual comfort.

Bifocal

Bifocal lenses are split into two sections to accommodate both near and far sightedness, so only one pair of glasses is required for different uses eg for distance and near vision. These lenses contain two lens powers with a visible dividing line on the lens. Bifocal lenses usually provide wider lens area for reading and computer work than progressive lenses.

Extended near

Extended near are special progressive lenses designed for people requiring intermediate and near focus. Unlike regular progressive lenses, extended near lens has large viewing area for intermediate distance (around 65cm away) which allows wearers to see intermediate distance objects.