Types I () and V () collagen show clear extracellular fibrillar threads and less intracellular staining compared to and , respectively. Types II () and XI () collagen show some fine extracellular threads and small granules (arrows) and decreased intracellular staining compared to and , respectively. In the inlays of and , the extracellular collagen is magnified two times. Bars in each panel equal 50 μm.<p><b>Copyright information:</b></p><p>Taken from "Human retinal Müller cells synthesize collagens of the vitreous and vitreoretinal interface in vitro"</p><p></p><p>Molecular Vision 2008;14():652-660.</p><p>Published online 26 Mar 2008</p><p>PMCID:PMC2276182.</p><p></p