Neuregulin-1 promotes survival of retinal ganglion cells42 whereas dysbindin is localized to Müller glial cells that support neuronal growth43 and contribute to the electroretinogram b-wave,44 in which deficits have been observed in schizophrenia.45 The retinal layer changes detected by our study may help reconcile previous findings to focus biomarker research. The gene discussed is DTNBP1; the disease is schizophrenia.