What is the expiration date for the available packages?

January 2024 A box of 2 vials lasts me about 2 weeks at 3 drops/day in each eye. I have been using CAN-C since 2012 when cataracts were first diagnosed. eye eye drops IMO hsve helped stave off the inevitable progression. Am very short sighted -16 dioptre specs needed - have to hold newspapers up close to my eyes to read small print. Have come to "the end of the road" however, and getting more frustrated with my poor sight - so at next optician checkup (in 2 weeks time) will ask to be referred for an implant in each eye!