Artificial Tears (Hyaluronate Sodium / Trehalose)

What it is and how it works

Sodium hyaluronate is a viscoelastic, water-retaining glycosaminoglycan that stabilises the tear film and promotes corneal epithelial healing. Trehalose is a disaccharide bioprotectant that protects corneal epithelial cells from desiccation and oxidative stress by stabilising cell membranes and proteins.

Indications

Symptomatic relief of moderate to severe dry eye and ocular surface discomfort, including after refractive surgery and with contact lens wear.

Dosage and administration (summary)

1 drop into each affected eye three to six times daily, or as required.

Contraindications

Hypersensitivity to any component.

Warnings and precautions

Transient blurred vision may occur after instillation. Avoid touching the dropper tip to the eye to prevent contamination. Seek medical review for persistent pain, redness or visual change.

Pregnancy

Considered safe for use in pregnancy.

Storage and supply

Store below 25 °C; use within the period stated after opening (commonly 3 months for preservative-free multidose systems).

Source: reference summary prepared from the EU SmPC/EPAR, BNF and WHO Model Formulary. The approved product information in Iran governs.