In general, in the presence of sunlight too bright, eyes responded by using natural systems of protection, such as blinking The eyelid, the change of the pupil, the function of the lens and screen Eye pigments of the retina, which filter the light while protecting the nerve cells.
Under conditions of prolonged exposure to sunlight is nevertheless useful to repair lenses, adequately protective, likely to represent an effective defense by solar radiation that can damage them.
Lenses solar fulfill their protective function as they eliminate harmful radiation: ultraviolet rays and purple - blue. Also attenuate light intensity, reducing the glare.
What are the sunglasses?
Sunglasses are more than just a fashion accessory: perform it functions much more prominence to the point that the EU will have classified as "protective equipment", for going protect them from hazards due to solar radiation. If equipped with suitable lenses can be used when driving a motor vehicle.
The filters do not meet the requirements for road use must be accompanied from warnings "unfit to drive."
Among the personal protective equipment sunglasses belong to the first three categories are in fact designed taking into account that the person who uses them having to evaluate the efficacy, in relation to possible risk from which he wants to protect themselves.
It is important that the glasses are PURCHASED AT DEALERS KNOWN AND TRUST, able to advice on the basis personal needs.
Care and conservation of glasses
1) It must never support the glasses with lenses down because may scratch.
2) Do not let the glasses exposed to heat or cold: heat generated For example, the sun on the windshield of the car on a hot day can permanently damage some types of glasses.
3) Keep the glasses still in their carton for protect them from shocks, better if the box is rigid.
The lens should provide scratch resistance and ensure a wide field of view and adjust in order to sufficiently cover the eye (the child is obliged to raise his face to see the adult world).
The choice of frame is just as important. The material must be soft, deformable and biocompatible (children often gnaw the rod terminals).
There must be no sharp edges or protrusions, auctions be flexible and adherents.
The eyeglasses are at the forefront of the sector in both the materials used such materials based on metal (monel, nickel, steel, titanium, aluminum) and plastics (acetate, polycarbonate), both for the design and colors taken .
There are many different types of prescription eyeglasses. These types of prescription eyeglasses are lighter and thinner and offer much better optics. If you frequently suffer from headaches because your eyeglasses are heavy then it is worth it to get high index prescription eyeglasses.
Under conditions of prolonged exposure to sunlight is nevertheless useful to repair lenses, adequately protective, likely to represent an effective defense by solar radiation that can damage them.
Lenses solar fulfill their protective function as they eliminate harmful radiation: ultraviolet rays and purple - blue. Also attenuate light intensity, reducing the glare.
What are the sunglasses?
Sunglasses are more than just a fashion accessory: perform it functions much more prominence to the point that the EU will have classified as "protective equipment", for going protect them from hazards due to solar radiation. If equipped with suitable lenses can be used when driving a motor vehicle.
The filters do not meet the requirements for road use must be accompanied from warnings "unfit to drive."
Among the personal protective equipment sunglasses belong to the first three categories are in fact designed taking into account that the person who uses them having to evaluate the efficacy, in relation to possible risk from which he wants to protect themselves.
It is important that the glasses are PURCHASED AT DEALERS KNOWN AND TRUST, able to advice on the basis personal needs.
Care and conservation of glasses
1) It must never support the glasses with lenses down because may scratch.
2) Do not let the glasses exposed to heat or cold: heat generated For example, the sun on the windshield of the car on a hot day can permanently damage some types of glasses.
3) Keep the glasses still in their carton for protect them from shocks, better if the box is rigid.
The lens should provide scratch resistance and ensure a wide field of view and adjust in order to sufficiently cover the eye (the child is obliged to raise his face to see the adult world).
The choice of frame is just as important. The material must be soft, deformable and biocompatible (children often gnaw the rod terminals).
There must be no sharp edges or protrusions, auctions be flexible and adherents.
The eyeglasses are at the forefront of the sector in both the materials used such materials based on metal (monel, nickel, steel, titanium, aluminum) and plastics (acetate, polycarbonate), both for the design and colors taken .
There are many different types of prescription eyeglasses. These types of prescription eyeglasses are lighter and thinner and offer much better optics. If you frequently suffer from headaches because your eyeglasses are heavy then it is worth it to get high index prescription eyeglasses.
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