These eye drops are a form of 'artificial tears'.
They do not contain any pharmacologically active ingredients as such, but do contain polyvinyl alcohol, which is a lubricant that relieves dryness and irritation of the eyes.
Contains: The active ingredient Liquifilm (polyvinyl alcohol) 1,4% (w/v) in a buffered hypotonic vehicle preserved with benzalkonium chloride and disodium edetate. sodium chloride, sodium phosphate dibasic, sodium phosphate monobasic, purified water and hydrochloric acid or sodium hydroxide to adjust pH.