Dorzolamide eye drops — what they do and who uses them

Dorzolamide is an eye drop used to lower pressure inside the eye. Doctors prescribe it for open-angle glaucoma and ocular hypertension. It works by reducing fluid production in the eye, which helps stop damage to the optic nerve and loss of vision over time.

This guide gives clear, practical advice on using dorzolamide safely, what side effects to expect, and simple tips to get the most from your treatment. If you have any doubts, check with your eye doctor or pharmacist before changing how you use the drops.

How to use dorzolamide eye drops

Follow the exact dose your doctor gives you. Most people use one drop in the affected eye(s) two or three times a day. Wash your hands first. Tilt your head back, pull the lower lid down, and place one drop into the pocket formed by the lid. Close your eye gently for 1–2 minutes — don’t blink hard or squeeze — and press the inner corner of the eye (near the nose) to reduce drainage into the throat.

If you use other eye medicines, wait at least 5–10 minutes between drops. If you wear contact lenses, remove them before using dorzolamide. Don’t put contacts back in until at least 15 minutes after the drop, unless your doctor says otherwise.

Side effects, warnings and smart tips

Common side effects are mild and usually short-lived: stinging or burning when the drop goes in, blurred vision for a few minutes, a bitter or metallic taste, tearing, and mild eye redness. These often fade after a short time.

Serious reactions are rare but need quick action. If you get severe eye pain, sudden vision changes, swelling, or signs of an allergic reaction (rash, swelling of the face, difficulty breathing), stop using the drops and get medical help right away.

Tell your doctor if you have a sulfonamide allergy. Dorzolamide belongs to the sulfonamide family, and a history of severe sulfa reactions can be important. Also mention if you have kidney disease, liver problems, or take other medications — your doctor will check if dorzolamide is right for you.

Store drops as directed. Some bottles need refrigeration before opening; others can stay at room temperature. Check the label for storage and expiry info. Don’t use drops past the expiry date or if the bottle looks cloudy or damaged.

Want fewer surprises? Keep a simple checklist: follow the dose, wait between different eye meds, remove contacts, store properly, and report persistent problems. Regular eye pressure checks are the only way to know the drops are working, so keep scheduled visits with your eye doctor.

If you're ever unsure about side effects or how to apply the drops, call your clinic. Dorzolamide can protect vision when used correctly — but only if you use it the right way and stay in touch with your eye care team.