How to Protect Eyeglasses

Eyeglass lenses are distinguished by their technical characteristics: geometry, material, salaries, thickness, filtration indices, shades, …

The lens material is an essential part of the corrective lens: It will be used for corrective function and will impact both your comfort (to share the weight of the glasses), the impact resistance ability and aesthetic (share the thick glasses).

The glass will also be the holder of one or more treatments: anti-glare, anti-fouling, anti-scratch, Polarizer, slimming, photochromic, anti-fog, anti blue light or hydrophilic. You will find below in this article the advantages and price for each of sunglasses collected by Homosociety.

Choose only the treatments you need because the price of your glasses may rise considerably with them.

Choose the material for his glasses

There are 3 distinct families as regards the composition of spectacle lenses: the mineral, the organic, the polycarbonate.

  • The mineral glass is hardly used. It has the advantage of good scratch resistance but is breakable and relatively heavy.
  • Theorganic glass: Currently, most glasses are made. They are lighter, more comfortable, thinner, more scratch resistant and more, they adapt to all frames.
  • The polycarbonate is a synthetic material that has the distinction of being very light and provides a high impact resistance. It has more effective protection against ultraviolet and high heat resistance. It is particularly recommended for children or for sports activities. The disadvantage of this material is that it is quite soft and scratches easily.
Organic glass properties

Thermosets

Thermoplastics

Excellent impact resistance.

  • high refractive index (1.59)
    • extremely light
    • Effective protection against UV

Note: The polycarbonate should be routinely coated with a scratch-resistant varnish.

Surface treatments

Various treatments may be applied on the surface of the spectacle lenses. They improve visual comfort and quality of vision.

These are listed below with their advantages and their average cost observed:

• The anti-reflective coating

It removes unwanted reflections-handy for driving a car or when working on a computer-and improves the perception of contrasts. It removes the glowing effect of the glass, so it also allows others to see your best look.

It is a treatment for comfort but also aesthetics, it provides more transparency glasses, it improves vision by eliminating glare.

Advantages: Reduction of eyestrain and headaches disappear sometimes caused by glare glasses.

Prices on average 50 euros per glass.

The antifouling treatment or hydrophobic

The antifouling treatment makes the glass surface of adherent anti glasses: water beads rolling on the surface and traces of fat (our fingerprints) were not taken.

Benefits: Greater transparency of the glasses and easier cleaning.

Prices on average 90 euros per glass.

The anti-scratch (or hardened)

The hardening treatment consists of applying a polish on glasses to increase their resistance to scratching and rubbing. This protective layer thus increases the life of the lenses.

Only organic glass and polycarbonates in need, inorganic glasses are naturally resistant to scratches.

Advantage: lifetime spectacle lens is extended.

Prices on average 40 euros per glass.

The anti blue light treatment.

Especially recommended for people spending much time on computer or on LED screens, it allows to filterthe harmful rays of blue light. The glasses have a yellow or brown tint more or less pronounced depending on the filtering rate. It is always associated with an anti-reflective coating. Learn more about the anti blue light glasses.

Advantages: less visual fatigue, improved sleep.

Price: 20 euros per glass.

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