Singh-Benoit-retina-model (IMAGE) University of Rochester Caption An illustration of the lab model that mimics the part of the human retina affected in macular degeneration. The model combines stem cell-derived retinal tissue and vascular networks from human patients with bioengineered synthetic materials in a 3D "matrix." Credit (University of Rochester illustration / Michael Osadciw) Usage Restrictions Use credit: (University of Rochester illustration / Michael Osadciw) License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.