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 .
Myopic and presbyopic, possible?
Visual fatigue affects the work of employees
Visual disturbances at work
8 out of 10 employees say they feel visual discomfort and eye disorders at work . Headaches, dry eyes, neck stiffness, glare and visual fatigue are the various symptoms. Many of them take up to 5 breaks per day to rest the vision. Of the more than alarming figures which endanger the eyesight of employees as well as the economy of companies.
5 tips and tricks to relieve tired eyes
No more dark circles
There are two types of dark circles, brown; linked to a natural overproduction of melanin. The eye contour is darker, in shades ranging from golden to brown. Hereditary, these dark circles are more common in Mediterranean skin.
And those more bluish; they are linked to poor blood circulation often induced by fatigue.
THE BLUE LIGHT SEASON
Autumn or the season of blue light
The change of hours, the All Saints holidays, the days getting shorter are all signs to announce blue light season .
We come home from work, the children from school, it is 5 pm, the sun is already setting, night is approaching. Unlike the long summer evenings spent outside, autumn and winter send us back inside our homes face to face with our different screens , sources...
Eye protection glasses for healthcare professionals
Winter tips for your eyes
On the way to the holidays
Reading problems? What if it was presbyopia?
Presbyopia, what is it?
As we age, we all experience annoying changes in our vision:
- it becomes more difficult to concentrate
- it is more and more difficult to see clearly on close objects .
Which mask to use in 2021?
For almost a year, wearing a mask has become normal to protect yourself from the coronavirus and now from its variants.
Faced with the shortage of masks, many have turned to their sewing machine to develop them by following the "AFNOR standards": no sagittal seam, 3 folds etc...
Then gradually came disposable masks, washable ones, surgical ones, FFP1, FFP2, UNS1, UNS2, cat1, cat2, KN95... a whole barbaric language for the average consumer!
