Eye Injections: Taking the Fear Out of Intravitreal Treatment
If you’ve been told you need eye injections, it’s natural to feel anxious. The idea of a needle going into your eye can be unsettling. However, intravitreal injections are a common and effective treatment for many eye conditions. This guide aims to address common concerns and explain the procedure in patient-friendly terms, helping you feel more comfortable and informed about your treatment.
Understanding Intravitreal Injections
Intravitreal injections are a way to deliver medication directly into the eye. The term “intravitreal” means “into the vitreous,” which is the jelly-like substance that fills the middle of your eye. These injections are used to treat various eye conditions, including:
- Age-related macular degeneration (AMD)
- Diabetic retinopathy
- Macular oedema
- Retinal vein occlusion
- Ocular inflammation
The medications used in these injections often work by blocking a protein called vascular endothelial growth factor (VEGF), which can cause abnormal blood vessel growth and leakage in the eye. By delivering the medication directly into the eye, doctors can effectively target the problem area while minimizing effects on the rest of the body.
The Injection Procedure: What to Expect
Understanding the procedure can help alleviate fears and prepare you for what to expect. Here’s a step-by-step breakdown of what typically happens during an intravitreal injection:
1. Preparation: When you arrive, a nurse will check your blood pressure and go through a pre-procedure checklist. Eye drops will be used to dilate your pupil.
2. Meeting with the Doctor: Your doctor will discuss the procedure with you, answer any questions, and ask you to sign a consent form.
3. Getting Comfortable: You’ll be asked to lie back in a reclining chair. The entire procedure usually takes only 5-10 minutes, with the actual injection lasting just seconds.
4. Numbing the Eye: Anesthetic eye drops will be applied to numb your eye and minimize discomfort.
5. Cleaning: Your eyelids and the surface of your eye will be cleaned with an antiseptic solution to reduce the risk of infection.
6. Keeping the Eye Open: A small device called an eyelid speculum will be used to keep your eye open during the injection. While this might sound uncomfortable, remember that your eye will be numb.
7. The Injection: You’ll be asked to look in a specific direction. It’s important to keep as still as possible during this part. The medication will be injected using a very small needle. You may feel a slight pressure, but this sensation lasts only a few seconds.
8. After the Injection: Your vision will be checked, usually by asking you to count the doctor’s fingers. Your eye will be cleaned again, and antibiotic drops may be applied.
9. Post-Procedure: You’ll receive instructions for aftercare and any necessary prescriptions. A follow-up appointment will typically be scheduled.
Addressing Common Concerns
1. Pain and Discomfort
· One of the biggest concerns patients have is about pain during the injection. It’s important to know that while the idea of an eye injection might sound painful, most patients report that the procedure is much more comfortable than they expected. The anaesthetic drops used before the injection are very effective at numbing the eye. After the procedure, you may experience some mild discomfort or a feeling of pressure in your eye. This is normal and usually subsides within a day or two. Over-the-counter pain relievers can help if needed.
2. Vision Changes
· Immediately after the injection, your vision may be blurry. This is normal and usually clears up within a few hours to a day. You might also notice some small air bubbles in your vision, which look similar to floaters. These are harmless and will disappear on their own, typically within a day or two.
3. Redness and Irritation
· It’s common to have some redness on the white part of your eye after the injection. This is often due to a small amount of bleeding under the surface of the eye (subconjunctival haemorrhage) caused by the injection. While it may look alarming, it’s harmless and will clear up on its own within a week or two. You may also experience some eye irritation, which is often due to the antiseptic used to clean your eye before the injection. This irritation usually resolves quickly.
4. Frequency of Injections
· Many patients require multiple injections over time to manage their condition effectively. The frequency can vary depending on your specific condition and how you respond to treatment. Initially, you might need injections once a month, but over time, you may need them less frequently. Some patients eventually stop needing injections, while others require ongoing treatment to maintain their vision.
5. Risks and Complications
· While intravitreal injections are generally safe, it’s important to be aware of potential risks. Serious complications are rare, but they can include:
- Eye infection (endophthalmitis): Less than 1 in 2000 injections
- Severe bleeding into the eye: Less than 1 in 1000 injections
- Retinal detachment: Less than 1 in 1000 injections
- Persistent high pressure in the eye: Less than 1 in 100 injections
- Cataract formation: Less than 1 in 1000 injections
- Allergic reaction: Less than 1 in 1000 injections
· Your doctor will monitor you for any signs of these complications and provide prompt treatment if needed.
6. Aftercare and What to Watch For
· After your injection, you’ll be given specific instructions for aftercare. Generally, these include:
- Avoiding rubbing your eye or getting water directly in it for the first day
- Using any prescribed eye drops as directed
- Avoiding swimming or using hot tubs for a few days
- Wearing sunglasses if your eyes are sensitive to light
· It’s important to contact your doctor immediately if you experience:
- Increasing pain or discomfort in your eye
- Worsening vision
- Increasing redness of the eye
- Light sensitivity
- Discharge from the eye
· These could be signs of infection or other complications that require prompt attention.
7. The Importance of Consistency
· For many eye conditions treated with intravitreal injections, consistency is key to maintaining and improving vision. It’s important to keep all your scheduled appointments, even if you’re not noticing any vision problems. These treatments often work by preventing further damage rather than dramatically improving vision, so you might not always notice an immediate difference.
8. Coping with Anxiety
· It’s normal to feel anxious about eye injections, especially if you’re new to the treatment. Here are some strategies that might help:
- Ask questions: Don’t hesitate to voice your concerns to your doctor or nurse. They can provide reassurance and explain anything you’re unsure about.
- Relaxation techniques: Deep breathing or visualization exercises can help calm your nerves before and during the procedure.
- Bring a support person: Having a friend or family member with you can provide emotional support.
- Focus on the benefits: Remember that this treatment is helping to preserve your vision.