yes ,1 month after the open date
Yes but it will not work as well as unexpired eye drops!
yes..24hrs after opening the bottle..
solution
Well, they can get lost in your eye.. Luckily it rarely happens. They do expire aswell. First of all it depends on what you mean by "bad" They can tear, but most likely not. As i mentioned, they can get lost in your eye You may have a reaction or something, which will make your eye red and itchey. They might infect your eye's, thats why its really important to soak them in the Solution Liquid for 2 hours before applying them. Obviously they never go mouldy, dusty, ect.
10-14 days
7-14days
no
That depends on your state policy. In Texas it is the eye doctors decision. I do not have an expiration on mine.
Yes, all cosmetics expire. Sometimes its because the volatile compounds have all evaporated, and sometimes because it's possible that they are old enough that bacteria might have grown in them.
They are glands near the eye that produce tears, or the solution that covers your eye.
pink eye
for minior injuris an opthamologist should evaluate you