This study will evaluate the efficacy, safety and tolerability of perfluorohexyloctane (NOV03) at two different dosing regimens compared to saline solution in subjects with Dry Eye Disease (DED).

Inclusion Criteria:

• Signed ICF (Informed Consent Form)
• Subject-reported history of Drye Eye Disease (DED) in both eyes
• Ability and willingness to follow instructions, including participation in all study assessments and visits

Exclusion Criteria:

• Women who are pregnant, nursing or planning pregnancy
• Unwillingness to submit a blood pregnancy test at screening and the last visit (or early termination visit) if of childbearing potential, or unwillingness to use acceptable means of birth control
• Clinically significant slit-lamp findings or abnormal lid anatomy at screening
• Ocular/peri-ocular malignancy
• History of herpetic keratitis
• Active ocular allergies or ocular allergies that are expected to be active during the study
• Ongoing ocular or systemic infection
• Wear contact lenses within 1 month prior to screening or anticipated use of contact lenses during the study
• Intra-ocular surgery or ocular laser surgery within the previous 6 months, or have planned ocular and/or lid surgeries over the study period
• Presence of uncontrolled systemic diseases
• Presence of known allergy and/or sensitivity to the study drug or saline components
• Use of any topical steroids treatments, topical cyclosporine, lifitegrast, serum tears or topical anti-glaucoma medication within 2 months prior to screening