Non Interventional Study to Evaluate the Efficacy and Tolerability of Ectoin Containing Ophthalmic Solution

Inclusion Criteria: * Male or female person aged 18 years * Demonstrated mild to moderate keratoconjunctivitis sicca ( "dry eye") * Acute symptoms of dry eye: DEWS 1-3 * tear break-up time TBUT \<10s * agreement to abide by the routinely provided doctor's appointment for follow-up (reflected in the planned visits of observation plan resist) Exclusion Criteria: * inflammation of the anterior segment or trauma * Contact lens wearers * Any disease that can, in the opinion of the treating physician to affect the outcome of the study. * Patients with known intolerance to one of the substances used * Surgical procedures to the eyes in the last 6 weeks before inclusion in the trial * patients with addictive disorders or substance abuse fallow in the past 12 months, as well as persons incapable of giving consent