Visual acuity tests are a form of brain teaser puzzles that test the reader's critical thinking and problem-solving skills.

Visual acuity tests are a form of brain teaser puzzles that test the reader's critical thinking and problem-solving skills. These challenges have the potential to boost intelligence and improve ...

Optical illusions are tricky visuals that make us see things differently from how they are. These illusions show how our ...

ABU DHABI, UAE — Thrombolysis to treat central retinal artery occlusion, also known as “eye stroke,” appeared to improve visual acuity compared with oral aspirin but this did not reach ...