Better delivery systems needed for retinal diseases

The most common drugs injected into the vitreous to treat posterior segment disease are steroids and anti-VEGF medication. To keep it simple, I will use trade names when available.
For steroid delivery to the posterior segment, we have Triesence (triamcinolone acetonide injectable suspension, Novartis), Ozurdex (dexamethasone intravitreal implant, Allergan), Yutiq (fluocinolone acetonide intravitreal implant 0.18 mg, EyePoint Pharmaceuticals), Iluvien (fluocinolone acetonide intravitreal implant 0.19 mg, Alimera Sciences) and Vitrasert (ganciclovir). These FDA-approved treatments allow

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