TNF and glaucoma: The link between tumor necrosis factor-α (TNFα) and retinal ganglion cell (RGC) loss in glaucoma and traumatic optic neuropathies has been extensively investigated in humans (Yuan and Neufeld, 2000; Tezel et al., 2001) and animal models (Agudo et al., 2008; Tezel, 2008; Roh et al., 2012; Cueva Vargas et al., 2015; Tse et al., 2018; Wei et al., 2019).