Hi Index Lenses are spectacle lenses that are made of plastic materials designed and
manufactured to reduce the thickness of the lens and to provide a better fitting lens.
Hi index lenses look much nicer in your glasses than a standard plastic lens, fit better
and are lighter and more comfortable to wear.
Not all prescriptions require hi index lenses and there are different types of hi index
materials but the most common ones are 1.6, 1.67 and 1.74.
The diagram below shows the thickness reductions of different prescriptions and
in hi index materials.
index comparison image
Multifocals or progressives are spectacle lenses that correct the 3 main areas
of vision, namely distance, intermediate and near/reading.
In the last few years, technology and lens advancements have led to much improved vision for multifocal wearers. We are now able to offer new advanced freeform multifocals that are customised to every type of prescription.
The vision through these lenses is enhanced and optimised to reduce peripheral distortions and create improved distance and reading vision. Free form lenses achieve this by incorporating the multifocal digital surfacing with your prescription onto the surface of the lens closest to your eyes.
We recommend Free Form multifocal lenses.
Alternatively we also still can provide traditional type multifocal lenses that have very basic designs, as the progression is built into the front surface, and the person’s distance prescription is ground onto the back surface.
Enhanced reading lenses are similar to progressive lenses but instead of having
vision for distance, intermediate and reading, they have just intermediate and reading.
They are the best option for desk and computer work
Zeiss lenses – quality materials and coatings to give excellent visual clarity.
Photochromatic lenses – These lenses adjust automatically to bright sunlight, changing from light to dark, and then inside they return to clear.
One popular brand of photochromatic lenses is Transitions ® lenses. These lenses are excellent for general wearing day to day, as they provide 100% UV protection from the sun’s harmful rays,