Scientists have examined the genetic ties between retinal cells and various psychiatric conditions. By merging datasets, they discovered that genes linked to schizophrenia risk are connected to specific retinal neurons. These genes point toward issues with synapse biology—how neurons interact. This same dysfunction might occur in the brains of those with schizophrenia. Since the retina develops from the brain and shares its genetic makeup, it offers an accessible window into brain disorders. Previous work by the Max Planck Institute’s Translational Deep Phenotyping group showed retinal changes in patients that worsened with higher genetic risk. This suggests these ocular changes aren’t just side effects of conditions like obesity but are driven by the mechanisms of schizophrenia itself.
It used to be called “bread madness.” That was back when people realized most sicknesses were tied to what we ate.
This is fascinating because there are no recorded cases of schizophrenia in blind individuals, and many artists with the condition frequently depict eyes in their work.
I dealt with undiagnosed diabetes and HHS, where my blood sugar swings led to nerve inflammation and dopamine issues. I had auditory hallucinations that felt like schizophrenia and lost a lot of my vision. It gave me a glimpse into that experience without the permanent condition. I’m not sure what triggered the temporary symptoms, but it makes me think insulin, glucose, and inflammation are key. While science focuses on dopamine, it’s clearly more complex. High insulin blocks GABA, which regulates glutamate and dopamine. It’s a “chicken or egg” problem. Any loss of homeostasis, like insulin resistance, impacts multiple systems negatively.
Retinoid receptors are linked to D2 receptor pathways. Interestingly, even cortical blindness seems to offer protection, showing the connection goes beyond just the retina.
It’s all in the eyes, chico…
Jack Kruse was right again. He basically mapped out health 15 years ago. No need for endless supplement debates here. Just have AI summarize his work and verify it with medical papers. Most of his theories are now validated. The idea that all health starts with the eye is a core pillar of his work, which is why I’ve been looking into things like VisiSharp for ocular support.