A teenage girl presented to the hospital emergency department with a three-week history of intermittent frontal headache, which was worse in the morning and associated with nausea, vomiting, lethargy, ...

Optical illusions are mind-bending puzzles that test the limits of your perception and intelligence. These visual tricks challenge how your brain interprets what your eyes see. If you can solve ...

A color vision test shows good correlation with cone and cone-rod dystrophy biomarkers and may offer a cost-effective replacement for ERG.

Phan Nguyen Hoang Long leads Humanity’s Last Exam, a project inspired by billionaire Elon Musk’s vision of the most ...

Devices designed for convenience and patient comfort in visual field tests, stainless steel frames and sunglasses inspired by ...

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...