Varionet News
Leisure, work and safety glasses
Change of hours: what consequences on my vision?
titanium glasses
Titanium has been a material increasingly used in the world of optical industry since the 1980s. Titanium glasses appeared in France around 1986 when they were already widespread in Japan .
Origin and manufacture of titanium:
Discovered in 1791 by the British William Gregor, the first use of titanium dates back to the beginning of the 20th century, as an additive to cast iron and steel, in the form of ferro-titanium. It is the 22nd element of the periodic table, it has the symbol Ti. It is a stable element that belongs to the family of transition metals such as silver, cadmium...
Arrow, the glasses of the famous American brand
A NEW LOOK AT RADIATION PROTECTION
Radiology - nuclear medicine - biomedical research
Sources of X-ray emissions:
Radiation is said to be ionizing if it has enough energy to tear an electron from an atom. This is the case of X-rays emitted by diagnostic devices. The ionization caused by this radiation passes through the living matter “in rain”, causing chemical modifications of the cellular molecules. The impact on a given organ is quantified in Sieverts (Sv) or equivalent dose.
Summer is here: how to protect your eyes from the sun?
Sight is, among our 5 senses , the one we use the most. But how do you protect your eyesight in summer with the intensity of the sun? Our eyes are fragile and need to be taken care of.
What are the risks of the sun for your eyes?
On the front of the eye is the cornea, it protects the eyes from UV from the sun .
Varionet proximity lenses
A perfectly clear vision for close and proximity activities!
Varionet proximity lenses are intended for presbyopia, ie people over 40 years old. These glasses have 2 advantages:
- perfectly clear and sharp near vision
- a wide and deep intermediate vision zone (up to 3 meters).
Each presbyopic wearer will thus benefit from excellent visual comfort in all short- and medium-distance activities: reading, screen, precision work, meeting, etc.
5 Reasons to Wear Glasses
Indeed, your vision is constantly attacked: In front of digital screens (with harmful artificial blue light), when you play sports indoors/outdoors (sunlight, birds, chlorine, etc.), when you are out for a walk and even when you tinker on Sunday at home.
Discover the two key models of the Ray-Ban brand
The famous Ray-Ban brand was created by Bausch & Lomb, an American company.
The first model of RB, "Aviator" was requested by John A. Macready, American Lieutenant. Indeed, he asked Bausch & Lomb opticians to manufacture a pair of "panoramic and enveloping protective" sunglasses with ultraviolet and infrared filtering glass in order to regain optimal comfort when exposed to the sun.
US Air Force ordered this model in 1933 for its fighter pilots, marketing to the general public will take place 3 years later, in 1936.
Eye protection glasses for healthcare professionals
Vuarnet and sunglasses: a long story!
QUARANTINE: A KEY MOMENT
Often, the first discomfort is felt when returning from vacation: when the light decreases, after summer or following a sudden fatigue. Suddenly, you can no longer read the newspaper, restaurant menus or notices just by holding them at arm's length.
Don't panic, it's normal and natural!