Frequently Asked Questions
Presbyopia is a form of farsightedness, which means good long but not good near vision. Over time the lens of human’s eye hardens progressively, thus presenting a difficulty in changing its shape and therefore reducing the adaptability.
The polarized lenses are specially treated lenses, which internally contain filters horizontally. They are able to prevent reflections due to sunlight, rain or snow. This type of lenses is suggested and for sunglasses, also those who drive long hours. Their use in children is considered necessary.
Yes, even in not sunny days and with clouds on the sky, it is suggested to wear sunglasses, because they protect from the dangerous ultraviolet rays, which is hidden behind the clouds, as they absorb part of them, not all.