“…In summary, retinal organoids have very broad applications. However, there is still a long way to go to fully utilize retinal organoids in the clinical practice, and the universality and efficiency of their induced differentiation, the heterogeneity of organoid induced differentiation, and the differences between them and embryonic retinal development are urgent issues to be solved in the field [ 42 , 43 ]. We should further optimize numerous differentiation protocols and co-culture systems of retinal organoids and promote clinical application of retinal organoids.…”