Spectacle Lenses

Pearl Optics A corrective lens is a lens worn in front of the eye, mainly used to treat myopia, hyperopia, astigmatism, and presbyopia. Glasses or "spectacles" are worn on the face a short distance in front of the eye. Contact lenses are worn directly on the surface of the eye. Intraocular lenses are surgically implanted most commonly after cataract removal, but recently for purely refractive purposes. Myopia (near-sightedness) requires a divergent lens, whereas hyperopia (far-sightedness) requires convergent lens.

When ordering new spectacles, choosing the lenses is as important as choosing the frame. The choice need not be strictly dictated by the ophthalmologist's prescription; rather, the prescription is a starting point. Today, you can choose from a great variety of spectacle lenses. The same POWER can be provided by lenses that differ greatly in the quality of eyesight correction, the amount of comfort and convenience, esthetics, and, of course, the price. Some lenses provide increased image quality; some provide quality below the average. Some lenses will quickly make the eyes weary, others will protect from tiredness. Some lenses will add to the impression made by a stylish expensive frame, others can ruin it.

Here we would like to acquaint you with the basic, general parameters of quality for modern spectacle lenses. You might be already familiar with many of the lens features we describe below, but even in this case, we hope that our information about lenses will be useful and will help you choose high-quality, flawless eyewear.

Glass or plastics

"Its a million dollar question"

So let's look at the advantages of cr39 (plastic) / polycarbonate over glass.

-- Cr and poly are lighter than glass lenses. Density of optical plastic is two times smaller than that of the glass, which is why your glasses with plastic lenses will be much lighter.
-- They are impact resistant.
-- They are lighter than glass.
-- Suitable for rimless frames.
-- Higher options of lenses are available in cr / poly compare to glass.
-- They are the only choice of lenses for the children considering the safety.
-- Safe the risk of injuring your eyes with fragments of broken lenses is much smaller if the lenses are plastic - both because plastic resists breakage better and because plastic fragments are not so dangerous.
-- The plastic lenses can be coloured to our choice and requirement. Unlike glass, plastic gives lens manufacturers and optician freedom in coloring the lenses, using complicated cosmetic combinations of color tints


-- Some px the lenses are thicker than glass

Anti-reflective lenses

Are you getting the most out of your eyeglasses? With anti-reflective lenses, you can see better and look better! New anti-reflective technologies reduce lens glare and provide the clearest vision during everyday activities, like night driving and computer use. Anti-reflective lenses can also enhance your appearance, by eliminating lens reflections for a more natural look. Plus, today's anti-reflective lenses also resist smudges, scratches and fingerprints - making it easy to keep your lenses clean. Ask about anti-reflective lenses today!

Computer lenses
Do you have sore or tired eyes? Are you straining to focus? Ninety percent of computer users experience eye strain from computer use. In addition to taking steps to reduce eye strain, like blinking more often and taking breaks from the screen, computer lenses can also help to prevent computer related vision problems. Ask today to find a custom solution for your computer eye strain.

Hi-index lenses
Do you have a high prescription? Today's technologies offer customized solutions to find the right lens for your needs. Instead being weighed down by thick lenses, ask about hi-index lenses. These thin and lightweight lenses allow for a slim profile with clear and crisp vision.

Photochromic lenses
Every day, whether it's sunny or cloudy, we are exposed to the sun's harmful UV rays. For those with an on the go lifestyle, photochromic lenses are a great option to protect your eyes from UV rays. Today's lens technology allows photochromic lenses to change from clear when indoors to dark when outdoors in only a matter of seconds, providing both convenience and UV protection.

Polarized lenses
Sun glare can be a big problem, especially while driving. Today's polarized lenses eliminate glare, improving contrast and visibility while reducing squinting and eye strain. Polarized lenses are also great for snow or water sports providing maximum UV protection and enhancing contrast. Ask today if polarized lenses are right for you.

Polycarbonate lenses
Active lifestyles often require special gear - including eyewear. For sports enthusiasts, polycarbonate lenses are a smart choice to protect your eyes. Polycarbonate lenses are impact-resistant providing much-needed eye safety and are also thinner and lightweight, making them comfortable to wear. For parents, polycarbonate lenses are also a great choice for children.

Bifocal lenses
Bifocals as the name suggests offers two focal lengths to the wearer namely distance and near.  These lenses are usally required once a person crosses the age of 40 and the natural accommodation in the eye is reduced thus creating difficulty in focusing at near objects. These lenses will  have a clear visible demarking between the two zones.

Progressive lenses
As our eyes age, reading fine print on menus and books can become increasingly difficult. If you need bifocals, progressive lenses can be an appealing alternative to help you see clearly. Progressive lenses offer uninterrupted fields of vision helping us work comfortably on the office desk. Progressive lenses, or no-line bifocals, provide a gradual change in prescription, allow you to see at multiple distances with ease. If you're looking to get rid of that tell-tale bifocal line, ask today about progressive lenses.