کشف شگفت انگیز ویتامین A، دانسته های دانشمندان را در مورد بینایی تغییر می دهد

A surprising vitamin A discovery is changing what scientists know about vision

Scientists at Johns Hopkins University have uncovered a surprising process that helps humans develop sharp vision before birth, challenging decades of assumptions about how the eye forms. Using miniature human retinas grown in the lab, researchers discovered that a vitamin A derivative and thyroid hormones work together to shape the foveola, the tiny region at the center of the retina responsible for our sharpest…