Used to treat eye conditions involving abnormal blood vessel growth and leakage in the retina. It is primarily applied in the management of wet age-related macular degeneration (AMD), where it helps slow vision loss by inhibiting vascular endothelial growth factor A (VEGFA), a protein that promotes blood vessel formation. Also used in diabetic macular edema, macular edema following retinal vein occlusion, and diabetic retinopathy. Administered via intravitreal injection directly into the eye, it reduces retinal swelling and prevents further damage, helping to maintain or improve visual acuity in affected patients.