Retinal organoid (IMAGE) ETH Zurich Caption Detail of a cross-section of a retinal organoid. Different tissue structures are made visible with different colours. Credit Wahle et al. Nature Biotechnology 2023 Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND 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.