Anti-VEGF (vascular endothelial growth factor) treatments are commonly used to treat eye conditions such as age-related macular degeneration (AMD), diabetic retinopathy, and retinal vein occlusion. While these treatments can be highly effective, they may also cause side effects. Understanding these potential effects helps patients and healthcare providers manage risks and expectations.

Common Side Effects of Anti-VEGF Treatments

Most side effects of anti-VEGF injections are mild and temporary. However, some patients may experience more significant reactions. It is important to discuss any concerns with an ophthalmologist before starting treatment.

Local Side Effects

  • Eye pain or discomfort: Some patients report mild pain or a sensation of pressure after the injection.
  • Redness and inflammation: Temporary redness or swelling around the eye is common.
  • Bleeding: Minor bleeding at the injection site can occur but usually resolves quickly.
  • Increased intraocular pressure: A temporary rise in eye pressure may happen immediately after the injection.

Systemic Side Effects

  • Headache: Some patients experience headaches following treatment.
  • Nausea: Feeling nauseous can occur, though it is less common.
  • Blood pressure changes: Rarely, blood pressure may fluctuate temporarily.
  • Increased risk of blood clots: There is ongoing research about the potential risk of blood clots, but this remains rare.

Serious but Rare Side Effects

Although uncommon, some patients may experience serious side effects. These include:

  • Eye infections: Such as endophthalmitis, which requires prompt treatment.
  • Retinal detachment: A rare but serious complication that can threaten vision.
  • Vitreous hemorrhage: Bleeding into the eye that may impair vision.

Patients should seek immediate medical attention if they experience sudden vision loss, severe pain, or persistent redness after an injection.

Conclusion

Anti-VEGF treatments are a vital tool in managing serious eye conditions. While side effects are generally mild, awareness and prompt reporting of any adverse reactions are essential for safe treatment. Regular follow-up with an eye care professional ensures the best outcomes and early detection of any complications.