Do you really need to discard eye drops after 30 days? i mean, you don't use all of 10 ml eye drops in 30 days. i never throw eye drops away.

You are correct: Eyedrops expire on the date listed on the bottle. If there is some left in the bottle and you have used it properly (not touching the tip to your eye), then you can cap it and store it. Better to store it in the refrigerator until needed again. Don't share eye drops, however, .

No: You don't need to throw eye drops away after a month. You should determine when to discard drops based on the expiration date on the bottle.