[Glucose and lactate concentration in tears of rabbits following mechanical stress and wearing of contact lenses].

The concentration of glucose and lactat in tears is significantly different after slight or strong irritation of the eye. More glucose and lactat can be washed out of alterated tissue compared to normal one, although we estimate that the metabolits are primary more secreted after irritation. Under soft contact-lenses the concentration of both metabolits increase continiously during a certain period. Under hard contact-lenses the single measurements are very different. We have to estimate many disturbing factors.