June 23, 2026Download PDF Story at-a-glance GLP-1 drugs such as Ozempic and Wegovy have been linked to serious vision concerns, including diabetic retinopathy and optic nerve damage that can result in lasting vision loss Research suggests the highest risk of sudden vision loss may occur within the first year of starting these drugs, with symptoms sometimes appearing overnight without pain or warning Case reports document that even healthy adults using GLP-1 drugs for weight loss with no history of diabetes or eye disease have experienced lasting vision loss Sudden changes in vision such as blurriness, blind spots, or loss of color perception may be early warning signs of optic nerve damage
Many patients notice mental clarity and improved mood within weeks, reflecting the medication's effects on brain regions governing motivation and reward
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There is now tremendous interest in the heterogeneity of astrocytes across the CNS and there is an ongoing explosion of studies that are expanding and correlating information about structural, genetic and functional diversity of astrocytes across the healthy CNS
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