Comparison of the Efficacy and Safety of T2762 Versus Optive® in the Treatment of Moderate to Severe Dry Eye Syndrome

Inclusion Criteria: * Signed and dated informed consent. * Male or female aged ≥ 18 years old. * Diagnosis of moderate to severe dry eye syndrome Exclusion Criteria: * Pregnancy, lactation. * Childbearing potential woman who is not using a reliable method of contraception and is not surgically sterilised. * Inability of patient to understand the study procedures and thus inability to give informed consent. * Non-compliant patient * Participation in another clinical study at the same time as the present study. * Participation to the present study during the exclusion period of another clinical study. * Already included once in this study. * Ward of court. * Patient not covered by government health care scheme