Optical illusions with hidden images are amazing for testing your visual powers. These illusion images challenge your brain's perception, boost concentration, enhance pattern recognition, and ...

This optical illusion puzzle challenges observation skills by hiding an odd number among similar digits. Backed by visual ...

Please provide your email address to receive an email when new articles are posted on . Mobile apps can successfully mimic paper-based visual function tests, results showed. Such apps may expand ...

Please provide your email address to receive an email when new articles are posted on . Children had better near and distance visual acuity than adults before receiving visual aids. Optical aids were ...