Tangible Fill
Tangible Fill is a preservative-free unbuffered saline (0.9% sodium chloride solution). It is packaged in 5mL vials and sold in a box of 60 vials.
Scleralfil
Scleralfil is a preservative-free saline packaged in 10mL vials and sold in a box of 30 vials. It is a buffered saline, i.e. it has additives which stabilize the pH at a level similar to the eye.
Scleralfil vials are exceptionally user-friendly as they are easy to open and designed to stand up on their own.
Nutrifill
Nutrifill is a preservative-free saline solution with electrolytes (Calcium, Magnesium, Potassium, Phosphate, Sodium). As a buffered saline, it has additives which maintain the pH at a level similar to the eye.
Nutrifill is packaged in 10mL vials and in a box of 35 vials. It is particularly popular with people who have ocular surface diseases.