Lithium as a Potential Neuroprotective Strategy in Glaucoma: Mechanisms and Therapeutic Perspectives.

Research overview

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Glaucoma is a major global health concern, identified as the foremost cause of irreversible blindness, affecting nearly 95 million individuals. It is characterized by the progressive degeneration of retinal ganglion cells (RGCs), leading to significant vision-related disabilities and an extensive socio-economic impact. The concept that glaucoma should be viewed not solely as an ocular condition but also as a neurodegenerative disorder, sharing pathophysiological features with diseases like Alzheimer's and Parkinson's, is now widely accepted. This review examines the convergence of molecular mechanisms, including the roles of amyloid precursor proteins and neuroinflammation, that contribute to RGC loss. Notably, lithium, traditionally used as a mood stabilizer, has emerged as a potential neuroprotective agent for the treatment of Alzheimer's disease. In light of the common neurodegenerative mechanisms linking glaucoma with central neurodegenerative diseases, here, we review the current evidence supporting lithium's therapeutic potential in glaucoma, emphasizing the need for further clinical studies to determine its effectiveness in preserving optic nerve health and improving patient outcomes.

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