glutathione and diabetic retinopathy DR - Oxidative Stress in Diabetic Retinopathy:
Description
B12 deficiency can cause anemia, neurological symptoms, and cognitive impairment

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Azhar, G., Wei, J

Neuroprotective molecular mechanisms of (-)-epigallocatechin-3-gallate: a reflective outcome of its antioxidant, iron chelating and neuritogenic properties

If noninvasive options arent adequate to address the issue, there are surgical options as well
