Hard lenses:
are recommended for all, virtually constantly lenses. They are sauerstoffdurchlässiger and hygiene, but have adapted perfectly to the eye, otherwise they will sit poorly, the eye must be accustomed.
Soft lenses:
lentils are soft in a few standard sizes, one day alone. You save the care, are a rare alternative to glasses.
Gleitsicht lenses:
an age same farsightedness. They use different areas and Power must individually adapted from the optician. For a beginning only farsightedness, there are also so-called mono-vision lenses.
