Zeiss Contact Day 30 Spheric lenses are monthly-use contact lenses from one of the most popular companies in the optical industry – Zeiss. These lenses are manufactured using a high quality material called Ocufilcon F. Due to their combination of excellent material properties, the ability to work thin margins and their very good stabilization in a wide range of prescription lenses, Zeiss Contact Day 30 Spheric lenses are also suitable for those who have, until now, been limited to wearing spectacles only. Their balance between water content and oxygen permeability ensures a seamless fit even during extremely intense working periods, such as time at the computer or being in heated or air-conditioned spaces. These lenses are also equipped with a UV filter. The UV filter in contact lenses increases the protection of the cornea from the dangerous ultraviolet radiation. However, lenses do not cover the entire eye or eye area, so the combination of contact lenses that have UV filter and sunglasses is the ideal protection against harmful UV rays.