“…a), thereby demonstrating the predominantly glial metabolism of glucose in the retina. The high‐energy metabolism of the retina, phototransduction, and aerobic production of lactate from glucose (Ola et al, ; Poitry‐Yamate and Pournaras, ) make this light‐sensing part of the CNS a highly specialized, if not unique, region, metabolically and functionally, and do not necessarily reflect glucose metabolism in other cerebral regions, i.e., cortex, hypothalamus, hippocampus. Moreover, the LEXRF results do not preclude oxidative ATP formation by retinal glia during net synthesis of glutamate and glutamine, which, when blocked by anoxia (Winkler et al, ) or methionine sulfoximine (Barnett et al, ), suppresses the b‐wave of the electroretinogram.…”