IL6 and glaucoma: A past study showed that the serum expression of IL‐6 was higher in patients with NTG, which was inconsistent with the results obtained by Gani et al.45, 46Moreover, the change in serum levels of IL‐6 is involved in the progression of glaucoma, indicating that disordered immune reactions may trigger the glaucomatous neuropathy in patients with NTG.