Humans develop sharp vision during early fetal development thanks to an interplay between a vitamin A derivative and thyroid hormones in the retina, Johns Hopkins University scientists have found. The ...
Optical illusions are a fun way of fooling our brains and trying our patience. They play with the way we perceive the world and compel us to concentrate harder. On initial impression, the image ...
Robert J. Johnston Jr., associate professor of biology at Johns Hopkins, holds a petri dish enclosing a retinal organoid grown in his lab. Humans develop sharp vision during early fetal development ...