New Preservative-free Combination of Trehalose, Sodium Hyaluronate and N-acetyl-aspartyl-glutamate (NAAGA) in Dry Eye

Inclusion Criteria: * Men and women aged over 18 years, * Able to give written informed consent prior the initiation of any procedure, * Dry eye diagnosis and/or dry eye symptoms in the last 3 months, * OSDI \>12, * Never been treated with artificial tears or with no artificial tears at least 1 month before the enrolment, or not satisfied with current artificial tears. Exclusion Criteria: Ophthalmic Exclusion Criteria in at least one eye •Far BCVA ≥+0.7 LogMAR (e.g., ≤0.2 in decimal value or ≤20/100 Snellen equivalent or ≤50 ETDRS letters). Systemic/non Ophthalmic Exclusion Criteria * Known or suspected hypersensitivity to one of the components of the IMD, * History of or active relevant systemic condition incompatible with the investigation or likely to interfere with the investigation results or the patient safety according to investigator judgment. Specific Exclusion Criteria Regarding Childbearing Potential Women * Pregnant or breast-feeding women, * Childbearing potential women neither surgically sterilised nor using an adequate contraception (oral contraceptive, intra-uterine device, subcutaneous contraceptive implant, vaginal ring, patch). Exclusion Criteria Related to General Conditions * Alcohol addiction and heavy smoker according to investigator's judgement, * Unable to understand the investigation procedures or to give informed consent, * Non-compliant (e.g., not willing to attend a visit or completing the self-questionnaire; way of life interfering with compliance), * Participant in this investigation at the same time as another clinical investigation/study, * Participant in this investigation within the exclusion period of a previous study/investigation with a minimum of one month, * Participant being institutionalized because of legal or regulatory order, inmate of psychiatric wards, prison or state institutions, or employee or family member of the investigation sites or of the Sponsor's company. Exclusion criteria related to previous and concomitant treatments (medications/non-medicinal therapies/procedures) •Participant with previous, current or anticipated prohibited listed treatment (or prohibited modification of treatment regimen).