Will eyedrops expire?

summary

Many people use eye drops again, but they don't use them up in time, or they accidentally expire. Not only that, they continue to use expired eye drops. This is not feasible, because eye drops contain preservatives, the eyes are fragile, and the components in the drugs may have been oxidized or polluted, It can easily cause eye allergy and even toxicity. Will eyedrops expire? Now let me tell you something.

Will eyedrops expire?

As we all know, food is about the "shelf life", and drugs will also have, but the name is different, drugs should be called the "expiration date". " The term of validity of eye drops refers to the useful period of eye drops when they are not opened. It is useful to open at any time during the period of validity. It will be invalid whether it is opened or not after the period of validity.

Now that you know that eye drops can't be used when they are expired, let me introduce some other aspects of eye drops. Don't forget to wash your hands before eyedrops to avoid infection; After the eyedrops (ointment) are finished, it is possible that your fingers will touch the eyedrops or tears. It is best to wash your hands again.

There is also a problem that we need to pay attention to, and we are very concerned about, that is, how long is the shelf life of the eye drops after opening the bottle cap? After opening the bottle cap, the validity period of eye drops is generally 1 month. Why is it that most eye drops are not marked with this period? That's because the length of this "moment" is closely related to the season, the environment of the place where it is placed, and the habits of the patients (such as whether they touch their eyes when dropping medicine), so it can't accurately determine this moment.

matters needing attention

Generally, it's better to close your eyes for a few minutes after using eye drops, which is conducive to absorption. After getting up in the morning, before taking a nap and before going to bed at night, the effect of eyedrops is better. Other time point eye drops should pay attention to choose time more abundant, don't finish at one point, immediately go to do other things.