"This study aimed to evaluate the equivalence of a smartphone-based visual acuity chart with a standard 6-m Snellen visual acuity (6SVA) chart." Researchers first reviewed Snellen chart apps that were ...

Bear Glacier, photographed here in September 2019, has retreated about 3 miles from 1984 to 2021, according to the new study. (Deborah Kurtz/U.S. National Park Service) Over the last 20 years, glacial ...

Around 1900 many American educators advocated the use of objects in teaching mathematics and the sciences. R. O. Evans Company of Chicago published this set of twenty chromolithographed charts. They ...

Hundreds of scientists around the globe have shared data to create the world's first brain growth chart. The project incorporated MRI scans from subjects of all ages to offer a unique portrait of how ...

Increased consumption of ultra-processed foods has been linked to higher greenhouse gas emissions by a new study charting 30 years of dietary change. Ultra-processed foods include reconstituted meat ...

A new study on why college tuition fluctuates concludes that changes in state appropriations are the most significant factor for public institutions, while private-college tuition is most closely ...

In a retrospective study believed to be one of the largest of its kind, researchers say they have successfully charted the health risks, growth patterns, and medical and surgical outcomes of 1,374 ...