How to Protect Sunglasses

The polarizing treatment

It removes glare that have no visual interest and enhances the perception of contrasts. They are very useful when reverb is large and perfect for driving and outdoor sports (biking, skiing, water sports).

They are also perfect for people who perceive contrasts poorly or who have eyes weakened by age or by an operation.

Advantages: UV protection and a better perception of reliefs and contrasts, more comfortable in high reflection areas (sea, mountain, road …).

The photochromic treatment

These glasses are also called variable tint lenses. photochromic glass processing allows the glasses darken or lighten gradually the brightness. The lenses darken under the effect of UV radiation and lighten under the influence of heat.

They will be very helpful to people who are disturbed by ambient light.

Advantages: it reduces glare and protect your eyes against UV.

Prices on average 70 euros per glass.

The anti-fog treatment

Placed on the market for the first time in 2011 by Essilor brand OPTIFOG® the glasses have a new layer to the anti-fog properties that are activated by the application of a specific concentrate. Learn more about sunglasses on Sunglasseswill.

Price: 30 euros per glass.

Slimming treatment

It is used for strong corrections: for her the appearance (30% decrease in the thickness of the glass), and also because he improves optical mink.

This treatment is recommended to optimize the aesthetic glasses sharp corrections (myopic or hyperopic) and it is also recommended for the semi-rimless frames and invisible.

The hydrophilic treatment

It is an inner coating that absorbs condensation, it can have no fog, so it is useful when wearing glasses for outdoors or when it rains.

coloring

This treatment involves giving a tint to the glass (gray, brown, green, plain or gradient). It protects the eyes against glare by reducing the brightness.

he types of lenses for spectacles

The uni-focal glasses or simple homes

single vision glasses glasses have a single focus and primarily used to correct myopia, hyperopia, astigmatism and near vision of presbyopic.

The lens surface is coated with a uniform layer, they only treat one disorder at a time.

These are the types of the most common glasses. They can be attached to all frame models and be very discrete.

Multifocal glasses

Lenses multifocal glasses consist of several homes, each dealing with a particular vision of the disorder.Associés, they complement, filling their own functions and to ensure double or triple correction.

Ocular adaptation, that is to say the passage of vision by various corrections, may take a few moments. Due to their thickness, such glasses usually arise over a relatively wide frame.

These glasses are little used today.

Progressive lenses

Their optical power varies progressively between the upper glass reserved for distance vision and the lower part for near vision, offering intermediate vision. They consist in fact of a single glass, whose surface is not uniform.

They can be adapted to most frames, even finer. Read more on progressive lenses and the latest generation of lenses .

Glasses nearby, or tapering glasses (in a half-moon).

They consist of a single focus and correct presbyopia and refractive errors (poor development of the perceived images). They allow to improve near vision (as the name implies) from 1 to 5 meters depending on the corrections.

They are well suited to computer work, but it will remove the glasses for distance.

Gallery

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How do sunglasses protect your eyes?

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