This NHS content is written for people in England. Medicine names, availability, prescribing and services may differ in other countries.
How to use carmellose sodium eye drops
If you wear contact lenses, you may need to remove them before using your carmellose sodium eye drops, then wait 15 minutes after using the drops before putting the lenses back in.
The drops may make your vision blurred if you use them with contact lenses. Read the leaflet that comes with the eye drops.
To use carmellose sodium eye drops:
- Wash and dry your hands first.
- If you're using a bottle, remove the lid. If you're using the single-dose dropper, twist the top off.
- Make sure the tip of the bottle or dropper does not touch anything, including your eye, eyelashes, eyelid or skin.
- Use your finger to gently pull down your lower eyelid and tilt your head back.
- Hold the bottle or dropper over your eye, look up, and let 1 drop fall into your lower eyelid.
- Close your eye. Gently press your finger over the inside corner of your eye (over the eyelid) for about 1 minute. This helps to keep the drop in your eye.
- Wipe away any extra liquid with a clean tissue.
- Repeat in your other eye if you need to. There is enough liquid in 1 single-dose dropper to put a drop in both eyes if needed.
- Put the cap back on the bottle. If you're using the single-dose dropper, throw it away.
If you missed your eye when putting in the drop, you can try again straight away.
View the original NHS website page ↗. Refreshed 19 August 2026.
Licensed under the Open Government Licence v3.0 ↗. MyPHU is independent and is not endorsed by the NHS.