Half the world will be nearsighted by 2050. 👓📉 We investigate the global Myopia Epidemic, a silent health crisis driven by screens and indoor living. We break down how Taiwan, facing one of the highest rates of myopia in the world, reversed the trend not with surgery, but with sunlight.

1. The "Dopamine" Mechanism: We analyze the biology. The eye needs sunlight to stop growing. We explain how Retinal Dopamine, triggered by bright outdoor light (10,000 lux), acts as a "stop signal" for eye elongation. Without it, the eyeball grows too long, causing myopia. We discuss why indoor lighting (500 lux) is biologically insufficient to keep our eyes healthy .

2. The "Tian-Tian 120" Solution: We expose the policy. Taiwan implemented a national mandate requiring 120 minutes of outdoor time every day for students. We detail how this simple, low-tech intervention successfully reversed a decades-long trend of worsening vision, proving that the cure for high-tech problems is often low-tech biology .

3. The "High Myopia" Risk: It’s not just about glasses; it’s about blindness. We explore the long-term danger of High Myopia (-6.00 diopters or worse). Stretched eyeballs are prone to retinal detachment, glaucoma, and myopic maculopathy—conditions that lead to permanent blindness. We ask: is academic pressure worth losing your sight?The full list of sources used to create this episode can be found on our Patreon under ⁠⁠https://www.patreon.com/c/Morgrain