Bimatoprost eye drops

Bimatoprost drops reduce the raised pressure in your eye.

Remember to use the drops every day.

The drops may alter the colour of your eyes, and cause your eyelashes to grow darker and thicker.

Type of medicine A prostamide anti-glaucoma eye drop
Used for To reduce high pressure within the eye
Also called Lumigan®
Ganfort® (bimatoprost in combination with timolol)
Available as Eye drops

A raised pressure within your eye can lead to damage to the optic nerve at the back of your eye. When this occurs it is called glaucoma. Glaucoma can lead to a loss of vision if it is not treated. If you have an increased pressure within your eye but without any damage to the optic nerve, this is called ocular hypertension. People with ocular hypertension have an increased risk of later developing glaucoma. Treatment with eye drops such as bimatoprost helps to reduce eye pressure in people with ocular hypertension, and to prevent further eye damage in people with glaucoma. Bimatoprost eye drops work by increasing the amount of fluid that drains out of your eye, which reduces the pressure.

Sometimes, more than one type of eye drop is needed to keep the pressure in the eye low. If this is the case for you, you may be asked to use two different eye drops, or you may be given drops which combine more than one type. Bimatoprost is available as a combination eye drop with a beta-blocker called timolol.

Some medicines are not suitable for people with certain conditions, and sometimes a medicine may only be used if extra care is taken. For these reasons, before you start using bimatoprost it is important that your doctor or pharmacist knows:

  • If you are pregnant, trying for a baby or breast-feeding.
  • If you have had surgery on your eye to replace or remove the lens (such as cataract removal).
  • If you have ever had a viral infection in your eye (such as herpes simplex).
  • If you wear contact lenses or use other eye drops.
  • If you have breathing problems.
  • If you have liver or kidney problems.
  • If you are taking or using any other medicines. This includes any medicines you are taking which are available to buy without a prescription, such as herbal and complementary medicines.
  • If you have ever had an allergic reaction to a medicine or another eye drop.
  1. Wash your hands before you use the drops.
  2. Remove the cap.
  3. Tilt your head back a little and pull the lower lid of your eye out to form a pocket.
  4. Hold the bottle upside down near to your eye.
  5. Apply enough pressure to the bottle to release one drop into your eye. Try not to touch your eye as you do this. (Do not use more than one drop - using several drops does not improve your glaucoma but will increase the risk of side-effects).
  6. Close your eye for a minute or two, and press gently on the side of your nose where the corner of your eye meets your nose. This helps to stop the drop from draining away and keeps it in your eye.
  7. Repeat the process in your other eye if you have been told to use the drops in both eyes.
  8. Replace the cap.
  • Before you start using these eye drops, read the manufacturer's printed information leaflet from the pack. The leaflet will give you more information about the eye drops and a full list of possible side-effects from using them.
  • Use one drop in the eye (or eyes) affected once a day, preferably in the evening. If you are using a combination drop (Ganfort® brand), your doctor may recommend you use the drops in the morning.
  • Remember to use the drops every day. If you do forget, do not double up on the next day to make up for a missed dose.
  • Take care not to touch the tip of the dropper with your eye, fingers, or any other surface. This is to prevent the drops from becoming contaminated.
  • If any of the eye drop solution runs on to your face, wipe it away as soon as possible with a clean tissue or hanky.
  • If you are using any other eye drops, leave 5-10 minutes between using the other drops.
  • When first put in, eye drops may sometimes cause blurred vision. If this happens it should quickly clear, but make sure you can see clearly before you drive or use tools or machines.
  • Do not wear soft contact lenses unless your doctor has advised you otherwise. This is because bottles of eye drops contain preservatives which can affect soft contact lenses.
  • Keep your regular appointments with your doctor so that your progress can be checked.
  • If you are having an operation or any medical treatment, remember to tell the person carrying out the treatment that you are using these eye drops.

Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. These usually improve as your body adjusts to the new medicine, but speak with your doctor or pharmacist if any of the following side-effects continue or become troublesome.

Very common bimatoprost side-effects - these are likely to affect more than 1 in 10 people who use these drops What can I do if I experience this?
Headache Ask your pharmacist to recommend a suitable painkiller. If the headache continues, let your doctor know
Irritation or redness in your eye, longer or thicker eyelashes, darker skin on your eyelids Many people using these drops notice these changes - discuss them with your doctor
Changes in the colour of the iris of your eyes (this may be permanent) Discuss this with your doctor
Sensitivity to light Wearing sunglasses may help
Increased blood pressure and changes to tests that show how your liver is working Your doctor will check you for these

If you experience any other symptoms which you think may be due to these drops, speak with your doctor or pharmacist.

  • Keep all medicines out of the reach and sight of children.
  • Store in a cool, dry place, away from direct heat and light.
  • Eye drops can be used for four weeks once the bottle has been opened. After this time use a new bottle, even if there is still some solution remaining.

This preparation is for use in eyes only. If someone swallows some of it, go to the accident and emergency department of your local hospital. Take the container with you, even if it is empty.

This medicine is for you. Never give it to other people even if their condition appears to be the same as yours.

Do not keep out-of-date or unwanted medicines. Take them to your local pharmacy which will dispose of them for you.

If you have any questions about this medicine ask your pharmacist.

Further reading & references

Original Author: Helen Allen Current Version: Peer Reviewer: Dr Helen Huins
Last Checked: 13/11/2012 Document ID: 3823  Version: 24 © EMIS

Disclaimer: This article is for information only and should not be used for the diagnosis or treatment of medical conditions. EMIS has used all reasonable care in compiling the information but make no warranty as to its accuracy. Consult a doctor or other health care professional for diagnosis and treatment of medical conditions. For details see our conditions.