A human being has five senses, namely touch, taste, smell, hearing and sight, by which all things are perceived. Among them, the visual part is an extremely complex and important sense. More than 80% of the information that humans obtain outside is relied on the vision.

The formation of the visual ability requires the integrity of the visual analyzer, including eye balls, occipital cortex as well as the visual network between them. Due to the attribute of the incoming light, human’s eyes can produce a very complicated reaction towards the simulation of the light.

When a human see an object, the object will be focused by the lens before landing on the retina. Later, the retinal cells in the optic nerve are stimulated by the incoming light and then they send out optical signals via the nerve impulse to be channeled to the brain. Next, the brain will take a role to interpret the object according to an individual’s experience, memory, judgment and recognition.

Not all shapes or objects can be distinguished by the human’s eyes. The eyes have a limitation towards slightly dark, gray, shaded and some colored objects. When dealing with these objects, the visual analyzer will attempt to coordinate with the surrounding stimuli to create some optically incoherent objects that are termed optical illusions.

Misconceptions in general, refer to things that a human perceives inaccurately. The most common phenomenon is a visual illusion. The wrong perception towards things may due to many reasons, but for the most cases the illusion is related closely to an individual’s physiological and psychological properties. The physiological property is formed through the characteristics of one’s sensory organs and body condition, while the psychological part is more related to one’s living condition and life experience.

Keep staring at four vertically arranged black dots in the middle of this picture for about 15 to 30 minutes. Then, blink your eyes quickly, and you will see one hoop shining with bright light. Now, keep focusing at the four dots in the middle for 30 seconds, then close your eyes and gradually raise your head up. Next, open your eyes gradually by looking the ceiling above your head, then back to this picture, and you will see Jesus.

It is said that people who can see nine faces from this picture have an IQ of 180.

Keep staring at the dot in the middle of the picture. Gradually, move your head backwards and you will see the inner circle is moving. This time, move your head forward and you will see the inner circle is moving another way round.

Is the girl wearing a red cloth a real one or from the puzzle?

Keep focusing on the black dot in the center of the round shape. Look at the dot for a while, you will see the gray shadow around it gradually appears to shrink and finally disappear from your vision.

Where has the lion gone? Can you see the lion? It is located inbetween two trees in the picture.

How many black dots are there? Keep on counting them.

Focus on the cross at the center for few minutes. You will find that the surrounding purple dots gradually had its color faded out.

What is inside this picture? Is this an old man or a group of people?

Move your head forward and backward, you will see a moving plateau in the middle. Next, move your head to the left and to the right, this time you will see a moving wave stretching outward.

My eyes get irritated looking at this picture. It seems like there is an isolated eye in the middle of the picture.

What happen when this young man grows old? To find the answer, invert this picture and you will see his old appearance.

What can you see? Can you see a fork, a cock opener, a pair of pliers, a spoon and etc. in this picture?

Is this a clown or a circus? Here, you can clearly see a face of a clown and at the same time you can also see a circus inside his face.

How many legs does an elephant have?

Shake this picture and you will see some fantasy spots there.

Use your mouse to scroll somewhere around the image from its top to a bottom. At this stage, you will see several moving small boxes. They seem as though they are going to fall off.

Each of the small circular lines is transmitted outward as large circular lines, and thus creating a circular spiral effect for our eyes to look at. Now, cover half of the picture with your palm, and again your eyes are deceived with very strange optical illusion effect.

There are so many wheels that create very special visual effect and interpretation. The wheels seem like moving themselves.

Focus your eyes on the eye’s image in the middle of the circle. Then, move your head forward and backward gradually, what strange phenomenon will you see then?

Look at the two lines with arrows attentively. Which one is longer? In fact, these two lines have the same length.

Keep staring at this picture for few minutes. The bridge seems to change gradually into a ship.

Keep staring at this picture for few minutes. The fish gradually turn into many flying ducks.

This image deceives my eyes to interpret either as a donkey or a seal.

The vertical lines appear to our eyes as bending lines, but in fact they are straight and parallel to each other.

Do the objects appear to you as humans or arrows?

Is this a frog? Is this a horse?

Are the two parallel straight lines appearing to you bending or straight? Are these two lines really curved? No, they are actually parallel.

Can you see four faces from this picture?

Is this a face of an old man, or two couples who are kissing each other?

Which line is longer, AB or BC? Try to measure with a ruler to get the answer.

In between two middle circles in this picture, which one is bigger? In fact, they are both equal in sizes.

Though the circle is a perfect round shape in nature, it appears to our vision that it is not a perfect round shape.

Which one is taller between these two rectangular black boxes?

Keep staring at the diamond-shaped for few minutes. Can you see its edge appears not straight enough for your eyes to capture?

Can you see a whirlpool? In fact, they are all concentric circles.

Looking at this picture, are you in vertigo? This picture really makes me feeling dizzy and whirling. Focus on the middle circle, then move your head upward, downward, to the left and right quickly, what will you see then?

This is a circle which deceives your eyes. Hold your mouse and let it rotate around the circle. You will see the external lines curling inward to the middle of the picture.

This is a rectangular box packed with some unusual matrix codes. They are arranged irregularly. One cannot see anything unless he moves backward two meters away from this picture. One will find these incredible codes written in five Chinese characters, which means “I like you very much!”