What are Optrex Double Action Eye Drops for Dry & Tired Eyes?nOptrex Double Action Drops for Dry & Tired Eyes 10ml works with your eyes to help restore their moisture. Provides instant relief as required. It contains two times more hydrating ingredients compared to current Optrex base dry drops. These polymers form a mesh like network on the ocular surface to help stabilise the tear film therefore helping to rebalance the natural moisture of the eye.nHow should I use Optrex Double Action Eye Drops? nWash your hands thoroughly before administering this product. When using for the first time, remove its tamper-evident seal followed by removing the cap. While tilting your head backwards, slowly squeeze the medicine bottle until 1 to 2 drops fall into each eye.n nFor use in eyes only. Boric Acid, Sodium Chloride, Hydroxypropyl Methylcellulose, Sodium Hyaluronate, Sodium Borate, WFI