Spot the difference types of puzzles or optical illusions and ask the viewers to find a set number of differences between the similar-looking images under a given period of time. Having almost ...

Test your visual acuity with this engaging optical illusion! Hidden within a bustling classroom scene, a pair of glasses ...

Given below is an online test for visual acuity using the E Chart, a chart with the letter 'E' in different directions (up, down, right and left) and sizes. This E chart visual acuity or eye vision ...

You only get 7 seconds to find the odd number in the next image. This puzzle is not for the weak. It demands unwavering focus and sharp eyes.

[Becca] will need visual acuity testing much earlier than most toddlers, but a standard eye chart is meaningless to kids before they get their letters. This is where Lea shapes come in – a set ...

Optical illusions provide a fun way to challenge visual perception and boost cognitive skills. This particular challenge ...

Optotype acuity is the measurement of a person's ability to see fine details and distinguish between different visual elements, like the letters O and Q. An eye chart is used to measure how well a ...