FRESHFIL MONO 0.5 ML is a single-dose, preservative-free eye drop solution containing Carboxymethylcellulose Sodium as its active ingredient. It serves as an ocular lubricant, mimicking natural tears to provide temporary relief from dryness, burning, irritation, and discomfort of the eyes caused by factors such as dry eye conditions or exposure to wind and sun. The single-use vials ensure sterility and are typically used by instilling one drop into the affected eye(s) as needed, making it a convenient option for on-the-go relief.