- Reference Number: HEY-020/2016
- Departments: Ophthalmology Department
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This leaflet has been produced to give you general information about your procedure. Most of your questions should be answered by this leaflet. It is not intended to replace the discussion between you and your doctor, but may act as a starting point for discussion. If after reading it you have any concerns or require further explanation, please discuss this with a member of the healthcare team caring for you.
What is an Intravitreal Injection?
You have probably been troubled by some symptoms due to a problem with leakiness/ swelling or bleeding in the retina at the back of the eye, following discussion with your doctor he/ she has advised that a course of injections of a drug into the jelly inside the eye would be helpful.
There are now several drugs which are injected into the eye to reduce retinal swelling or bleeding;
- Ranibizumab (Lucentis),
- Aflibercept (Eylea),
- Dexamethasone (Ozurdex),
- Bevacizumab (Avastin).
- Fluocinolone (Iluvien)
With the exception of Iluvien, these drugs usually work best if given on more than one occasion so you will probably need the injection repeating in the next month or so (Lucentis, Eylea, Avastin) or in several months (Ozurdex) depending on how your eye responds to the treatment it is therefore essential that you keep any Eye Clinic appointments that you are asked to attend.
The injection is given with a very fine needle through the white part of the eyeball. This procedure is usually carried out as an out-patient visit or as a day-case procedure for Ozurdex and Iluvien implants.
Why do I need a course of Intravitreal Injections?
Common diseases treated with this type of injection include: age-related macular degeneration (sometimes called “wet” AMD), diabetic macular oedema (leakiness due to diabetic damage), retinal vein occlusion (blocked blood vessels in the retina causing leakiness), inflammation or short-sighted related abnormal blood vessel growth, or other rare problems with the blood supply to the retina.
Your doctor will have discussed other treatment options with you and will have explained the advantages and disadvantages of all the treatments available to you. These treatment options will vary depending on:
- The cause of your eye problem
- The location of the leakiness in your retina
- What other treatments you have previously had (laser if appropriate or other eye injection treatment) and how your eye has responded to those treatments
- Whether you have previously had cataract surgery
- Other factors such as whether you have glaucoma (which is a buildup of pressure in the eye that affects vision
Intravitreal injections of drugs are usually very effective treatments and the majority of patients get some benefit from the treatment. Your doctor will explain the specific risks and benefits for the treatment course recommended for you and there is additional information available in our disease specific information leaflets.
Can there be any complications or risks?
Each injection, regardless of the drug injected carries a 1:1000 risk of a complication, which may severely permanently reduce the sight in the eye injected. The most serious risks are
- Infection inside the eye
- Blockage of the main artery to the eye
Other rare complications include:
- Retinal detachment
- Bleeding inside the eye
- Damage to the lens in the eye
These are all treatable but can compromise the vision in that eye.
Ozurdex and Iluvien carry an additional risk of cataract or high pressure in the eye (see relevant patient information leaflets for more information).
How do I prepare for the Intravitreal Injection?
Please read the information leaflet. Share the information it contains with your partner and family (if you wish) so that they can be of help and support. There may be information they need to know, especially if they are taking care of you following this examination.
Before the injection you may continue with your daily activities as normal; this includes continuing with all routine medication and eye drops. You may eat and drink as normal prior to the injection.
You must not drive after your appointment as you will be having dilating drops in the eye under-going the injection treatment and these drops blur the vision for up to six hours.
What will happen?
On the day of the injection you will need to report to the reception desk either on the ground floor of Hull and East Yorkshire Eye Hospital within the grounds of Hull Royal Infirmary or the Eye Injection Clinic at Castle Hill Hospital as advised by your appointment letter/confirmation. You will then be directed to the waiting area.
A nurse will verify your medical details including any recent changes to your health or medication so please bring a list of any new medication with you. You will have a vision test and dilating drops (identical to those used in the Eye Clinic) will be put in the eye/s to be injected. These take 20-30 minutes to work and will blur your vision for several hours particularly for close work. You will then have an OCT Scan performed on both eyes. An OCT scan is an Optical Coherence Tomography Scan which is a sophisticated scanning system that produces highly detailed images of the retina. It is often likened to an MRI or x-ray of the eye.
You will then be transferred to the injection suite where you will receive anaesthetic drops into the eye to numb the eye. The injection is performed with you lying on a couch where the area around your eye will be covered with sterile drapes. Once the eye is numb, the injection itself should take less than a minute or so to perform. Almost immediately you will feel well enough to return to the waiting area, you can then sit for a while if you wish before going home.
What happens afterwards?
Do not drive for 6 hours after the injection as your vision will be blurred by the dilating drops. It is normal for your eye to feel slightly gritty, uncomfortable or watery and the white of the eye may be red for a day or so after the injection. This should settle within 2 days. Please do not rub your eye after the injection as there is a risk of you causing a scratch to the surface of the eye whilst the numbing drops are still working.
If your eye feels gritty after the injection lubricating/ “dry eye” eye drops can help to make the eye feel more comfortable. You should use a new bottle after each injection to minimise the risk of infection in the eye. We recommend you arrange a repeat prescription of these lubricating drops from your GP.
Some patients notice floating dots or shadows in the eye being treated straight after the injection, these should gradually fade over the next 2 days. If you have had treatment with Iluvien or Ozurdex the floating dots will take a few weeks to fade away.
All these symptoms should steadily improve on a daily basis.
If you experience:
- Increasing pain/ ache in the eye
- Pus or discharge
- Deteriorating vision
Please contact the department immediately via the phone numbers below. These symptoms may be a sign of infection in the eye which is serious complication. Serious complications must be treated quickly to minimise damage to the eye.
If you suspect you have any of the above symptoms please contact us on:
Monday-Friday 9 am- 5 pm: (01482) 608788
Evenings, weekends and Bank Holidays: (01482) 604385
It is very important that you keep all appointments for review and treatment.
Depending on the drug injected you will be given a follow-up appointment either for review in the clinic or for a further injection, this will vary according to your eye condition and will have been explained in detail at your consultation with more detailed information given.
Should you require further advice on the issues contained in this leaflet, please do not hesitate to contact the Ophthalmology Department on tel no: (01482) 608788
For further information visit http://www.hey.nhs.uk/Patients/confidential-information-about-you.htm
General Advice and Consent
Most of your questions should have been answered by this leaflet, but remember that this is only a starting point for discussion with the healthcare team.
Consent to treatment
Before any doctor, nurse or therapist examines or treats you, they must seek your consent or permission. In order to make a decision, you need to have information from health professionals about the treatment or investigation which is being offered to you. You should always ask them more questions if you do not understand or if you want more information.
The information you receive should be about your condition, the alternatives available to you, and whether it carries risks as well as the benefits. What is important is that your consent is genuine or valid. That means:
- you must be able to give your consent
- you must be given enough information to enable you to make a decision
- you must be acting under your own free will and not under the strong influence of another person
Information about you
We collect and use your information to provide you with care and treatment. As part of your care, information about you will be shared between members of a healthcare team, some of whom you may not meet. Your information may also be used to help train staff, to check the quality of our care, to manage and plan the health service, and to help with research. Wherever possible we use anonymous data.
We may pass on relevant information to other health organisations that provide you with care. All information is treated as strictly confidential and is not given to anyone who does not need it. If you have any concerns please ask your doctor, or the person caring for you.
Under the General Data Protection Regulation and the Data Protection Act 2018 we are responsible for maintaining the confidentiality of any information we hold about you. For further information visit the following page: Confidential Information about You.
If you or your carer needs information about your health and wellbeing and about your care and treatment in a different format, such as large print, braille or audio, due to disability, impairment or sensory loss, please advise a member of staff and this can be arranged.