A needle injection directly into the gel-filled interior of the eye, performed by an ophthalmologist in a clinical setting — the only effective way to deliver drugs to the retina.Bypasses the blood-retinal barrier to deliver therapeutic concentrations directly to retinal tissue. Used for anti-VEGF biologics (ranibizumab, bevacizumab, aflibercept) and being studied for somatostatin analogs in diabetic retinopathy. The procedure carries a risk of endophthalmitis (intraocular infection causing potential permanent blindness) even under sterile surgical conditions. This is categorically not a route for self-experimentation. No research peptide context, no community discussion of any compound in this cluster changes that fact.K↑ Top