An optical illusion featuring a grid of “38” challenges viewers to spot the odd pair hidden within. This brain teaser tests your observation skills and cognitive sharpness. Optical illusions like this ...

Ophthalmology Times - ophthalmology news, articles, and events in a timely and accurate manner for members of the ophthalmic ...

Wearable screens, heads-up displays, color-changing lenses, and automatic caption glasses stood out at the Consumer ...