Vision
- the need for each person, but in time it usually loses its sharpness. Then
fans of literature and those who spend a lot of time on the computer monitor,
is necessary to resort to the help of an ophthalmologist, who will tell you how
to, according to the individual need to choose and buy a pair of metal
reading glasses.
Many
people believe that rimless
reading glasses and a computer together are no different. In fact it is
not. Let's see, what's the difference? Models for the computer using multilayer
interference filter system. On the glass is applied to vacuum deposition.
Purpose of these filters - to cut out part of the spectrum, which are harmful
to the eyes. The rest goes smoothly.
Single
Vision - a folding reading glasses. They are inexpensive and are sold in
pharmacies. The negative side of them - distracted by extraneous things, you
will need to remove the glasses, so how to parse items in them is not far
possible. Prices start at a few dollars, different from the aluminum
sunglasses.
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