Here is an optical illusion challenge that will test your visual processing speed, attention to detail, and focus. There is a number 739 hidden among the pool of 789s, and your challenge is to spot ...

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

Optical illusions with hidden images are amazing for testing your visual powers. These illusion images challenge your brain's ...

Visual acuity (VA) commonly refers to the clarity of vision, but technically rates an examinee's ability to recognize small details with precision. Visual acuity is dependent on optical and neural ...

Optical illusions are the tricksters of the puzzle world; they are designed in such a way that they fool our brains and eyes.

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 ...