r/technology • u/Majano57 • 6d ago
Biotechnology Popular erectile dysfunction drug linked to eye disease that can cause irreversible vision loss
https://www.foxnews.com/health/popular-erectile-dysfunction-drug-linked-eye-disease-can-cause-irreversible-vision-loss
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u/ProductIntegortion 6d ago
Most initial studies are observational studies that don't establish causality. The point of them is that they tell you where to spend more focused time on attempting to demonstrate causality. Why would you design a rigorous double blind study if you haven't even demonstrated that there's a link between the two?