If kept refrigerated, they'll hold up for a year. They should be discarded after that. If they discolor under refrigeration after a while, they should be discarded then.
A bottle of normal saline is considered sterile for up to 24 hours after opening. After this period, the saline solution may no longer be considered sterile and should be discarded to prevent the risk of contamination and infection.
They start out at about 10" but made smaller with use & should be discarded when too short to be practical or uncomfortable.
1 day
On your ointment container it will tell you the date of when it goes bad. if not i suggest you go to a pharmacist.
It should take 4-7 days depending on what eye infection it is
Unfortunately, potentially hazardous food (which pea soup is) left out that long should be discarded.
As long as the food was kept properly refrigerated and refrigerated soon after cooling it should be fine. After 3 days even refrigerated it should be discarded.
1o years
Leftovers should be refrigerated within 2 hours of cooking, so the safe time you're looking for is about 2 hours.
10 years
the answer is a hypothesis