Working at a computer compels our eyes to focus on very specific distances in the near and intermediate ranges.

Our vision needs at the workplace vary tremendously from one person to the next. They depend in part on the exact type of work you do. For example, do you spend a lot of your day talking to customers and colleagues? Or do you spend almost the whole day working on a computer? Another key consideration is the distance between your eyes and the screen. To meet people's individual needs, ZEISS developed what it calls Maximum Intermediate Distance (M.I.D.) technology. This provides clear and relaxed vision tailored to each individual, ranging from optimised reading glasses to progressive lenses for indoor use.

By introducing technology to determine each wearer's maximum intermediate distance (M.I.D.), ZEISS has created lenses which can be adapted to the specific visual distances required by each individual user.

ZEISS office lenses are available for three maximum intermediate distances (M.I.D.):

• Book – an office lens specially optimised for reading which offers clear vision from a reading distance up to a fixed M.I.D. of 100 cm.
• Near – an office lens specially optimised for near distances which offers clear vision from a reading distance up to a fixed M.I.D. of 200 cm.
• Room – a progressive lens for indoor use specially optimised for room distances which offers clear vision from a reading distance up to a fixed M.I.D. of 400 cm.

ZEISS individualised lenses for office and workplace use offer a customised M.I.D. which can be set between 100 and 400 cm to fulfil the specific requirements of each individual spectacle wearer.