Snow disease.

In cornea damage displays photocreatitis, strong level of which calls a snow disease, as and strong ultraviolet affect on eyes are leading to cataract, dystrophy retina, as very bad affecting rays in aphacia, as in removing natural lens, but on a different peoples rays affect as not same, as level affects as depends from a day time, very bad time since 10.00 am til 16.00 pm, geographic  finding place, high over sea level, as more higher is more bad, reflecting rays as strong reflects are water, using drugs as diuretic, tetracycline, tranquilizers and other, and therefore sunglasses found and created for the eyes care against harmful affects, as they are needing caring from rays, as against blue high energetic rays, as for eyes are bad.
As good sunglasses are 95 percent for care. As are first needed for glasses are North edge peoples, they are used pieces of bark or bones cuted in holes for to see, they are saved against snow blindness, as cared for a calculation a low whole light size, entering in eye. As lenses are having as plasmas and glass, as first are light and tight, as glass's of transparent and scratching, but very heavy, as in buy for glasses you need to know, that eyes level against rays are not depend from a level eyes darkness lenses, do not buy a low prices plastic as of not known manufactures, they are not having ultraviolet filter, as sun damaging affect rising, as happening this,that pupil in dark glasses widening as ultraviolet size penetrating faster, but form of glasses is different, but selecting frame by your face form, coloured hairs, hairs styles. but better care as fitting form, as in long sun visiting they are optimal, but in anomalies as refraction using glasses with photo chrome lenses as at room they are transparent, as on street they are dark, as depends from a sun clear.