#number #ilusion #curiosidades #curiosity

The image works with different planes and, those who cannot identify all the numbers, have a low sensitivity to see them. This difference is called contrast which, according to ophthalmology, is nothing more than the human being's ability to distinguish an object and the background behind it.
Contrast sensitivity depends on several factors, including people's habits. A recent study, for example, indicated that playing action games for about an hour a day can improve contrast perception. Having a high contrast sensitivity is important for cases such as driving at night in places with poor visibility, in addition to identifying objects in different planes.
A low level of this ability can indicate the existence of eye diseases, such as cataracts or glaucoma, or just be a symptom of aging. What do you see?
The correct answer is 3452839, but a lot of people take time to see all the numbers or don't even manage to.