What is the reason for eye drops to sting the eyes? Can they be used interchangeably?

Eye drops are used to relieve eye fatigue, but sometimes using eye drops is so uncomfortable. What is the reason why eye drops sting the eyes? Can eye drops be used interchangeably?

What causes eye drops to sting your eyes?

1. Excessive fatigue

If you feel a stinging sensation in your eyes when you put eye drops in, it may be because your eyes are overly tired. The sudden application of eye drops may cause your eyes to be unable to react quickly, resulting in pain and a stinging sensation in your eyes.

2. Adrenaline

Some eye drops contain adrenaline, which has the effect of constricting blood vessels. If your eyes are uncomfortable, the blood vessels will constrict when you put in eye drops, and you will feel a burning sensation.

3. Preservatives

Eye drops contain preservatives. The eyes are relatively fragile and will contract when they come into contact with preservatives, causing pain. This is one of the reasons why eyes feel stinging after using eye drops.

4. Get stimulated

For the eyes, eye drops are foreign matter. When the eye drops are applied, the eyes feel that there is a foreign matter entering the eyes, and then are stimulated by the eye drops, which will produce a stinging and painful feeling.

Can eye drops be used interchangeably?

Don't use eye drops on each other

Family members should not use eye drops on each other to avoid cross infection.

This is the end of the introduction on how to deal with irritating eyes caused by eye drops. Eye drops cannot be used interchangeably as they will cause cross-infection.