Varionet News
The heatwave explained by Varionet
What is the heatwave?
A heat wave is defined as a level of very high heat during the day and night for at least three consecutive days . The definition of a heat wave is therefore based on two parameters: heat and duration.
What are the risks associated with the heat wave?
If you are exposed to high heat for too long you risk severe fatigue , dehydration or heat stroke , see hyperthermia .
The most fragile people and those most exposed to heat are particularly at risk .
Vuarnet and sunglasses: a long story!
Can returning to work cause eyestrain?
Work, re-entry and eyestrain
The month of September is here, synonymous with back to school and this is a sign that the holidays are beautiful and well over! Summer is coming to an end and autumn is on its way. We have to adapt to the days that are getting shorter and it is common for eyestrain to appear. No more idleness, little naps, the daily routine is back with the long hours spent in front of digital devices and paperwork.
Order your solar reading glasses from home!
Summer vacation: don't forget your reading glasses
Ray-Ban, the must-have summer sunglasses
The history of the famous Ray-Ban glasses
The brand Ray Ban was created in 1937 by a German eyewear manufacturer Bausch & Lomb.
Its origin is due to the renowned American pilot lieutenant John Macready who asked his optician to manufacture a pair of “panoramic and enveloping protective” sunglasses with glass filtering ultraviolet and infrared rays in order to regain optimal comfort when exposed to the sun .
