The glasses are then arrived and unpacked, I discovered that the had fallen out a spectacle lens. Since it has saved probably again at the final inspection in the production. I had some trouble, the fallen out part (or not even used) to carry into the socket back, and I was afraid to break the glass. However Adventure succeeded me, and I put on his spectacles. She was a little too far, but not shifted from the nose, and that's why I was all for good.
Now to look: the glasses are unfortunately potthässlich, and on the road I do not want to go with her. There are nicer models, but they are probably more expensive. Whether you really protects the eyes from cataracts macular etc., is also not guaranteed. This may or may not be.
Blue light is not dangerous, some people say otherwise would have those who work a lot outdoors and in sunlight, all be visually impaired or blind. For the blue light portion of the sun is much greater than that of a monitor. And these critics maintain such spectacles for wonâ. Others do not, who think it makes sense, so put on a pair of glasses.
If the fatigue resistance and improved clarity that is really available if you sit at the computer. But the same effect can be achieved, perhaps, if one uses a simple sunglasses, little toned, which may slightly reduces the proportion of blue light.
And then see also better. But then everyone must decide for themselves.