Figure 3. The immunohistochemical localization of retinal homocystinylation sites at days 7, 15, 45, 90 after a homocysteine-thiolactone (Hcy-T) injection to reach a final intravitreal Hcy-T concentration at 200 μM. A: Blank control without any injection. B: 0.9% NaCl sham injection control at day 90. C: Day 7 after injection. D: Day 15 after injection. E: Day 45 after injection. F: Day 90 after injection. Scale bar: 40 μm.