Anti-VEGF Eye Injections

What are anti-VEGF eye injections?

Anti-VEGF eye injections are medicines given into the eye to reduce leakage and abnormal blood vessels in the retina. VEGF is a natural substance that, in excess, drives the growth of fragile new blood vessels and causes fluid to leak, both of which can damage the retina and blur vision. Anti-VEGF medicines block this process.

These injections treat a number of important conditions, including wet age-related macular degeneration, diabetic macular oedema, where diabetes causes swelling at the centre of the retina, and retinal vein occlusion, where a blocked vein leads to leakage and swelling. In each of these, controlling the leakage and abnormal vessels helps to stabilise the retina and protect sight. Because these conditions are ongoing, treatment is usually given as a course rather than a one-off, and the exact schedule is guided by how your retina responds. The injections are a well-established part of modern retinal care and have transformed the outlook for many conditions that once led to significant sight loss. Your consultant will explain which condition you have, why injections are recommended, and what your treatment plan is likely to involve.

What eye injections involve

Mr Paritosh Shah gives the injection after numbing the eye, in a quick and carefully controlled clinic procedure. The eye and surrounding skin are cleaned thoroughly to keep everything sterile, anaesthetic drops or a small amount of local anaesthetic make the eye numb, and a fine needle is used to deliver the medicine into the jelly of the eye. The injection itself takes only moments, and although the idea can feel daunting, most people find it far more comfortable than they expected.

The procedure is carried out in the clinic in Yeovil, and you can usually go home shortly afterwards. Most conditions need a course of injections, often starting with several given a few weeks apart, followed by a maintenance phase where the interval is adjusted to suit your eye. Your treatment is guided by retinal scans, which show whether the leakage or swelling is under control and help decide how often you need to be seen. Because the same consultant assesses your scans and gives your injections, your care is closely coordinated, and the plan can be fine-tuned to give your retina the protection it needs while keeping visits to the minimum necessary.

What to expect on the day of your injection

Anti-VEGF eye injections benefits and considerations

Regular injections can stabilise and sometimes improve vision affected by retinal leakage, and for conditions such as wet AMD and diabetic swelling they are the most effective treatment available. For many people, injections preserve sight that would otherwise decline, and some regain vision they had begun to lose, particularly when treatment starts early.

The main consideration is that treatment is usually ongoing and needs commitment to appointments, because the benefit is maintained by keeping the leakage controlled over time rather than by a single treatment. Missing injections can allow the condition to worsen, so a reliable routine matters. The injections are generally very safe, but as with any procedure there are risks, including irritation, a small bleed on the surface of the eye, a temporary rise in pressure and, very rarely, a serious infection inside the eye, and your consultant will explain the warning signs to watch for. The number of injections needed varies from person to person and is guided by your scans. Outcomes cannot be guaranteed, but anti-VEGF treatment has an excellent track record for protecting sight. If you have been told you need injections, or want a specialist opinion, an assessment in Yeovil will explain your options.

According to the NHS, around 40% of people with diabetes will develop some form of diabetic retinopathy, which can be treated with anti-VEGF injections. Additionally, studies show that over 90% of patients receiving these injections maintain vision without further loss.