1.) Watch the little cross for long enough, and the dots will vanish.

2.) Keep an eye on one of the yellow dots and the other yellow dots vanish.

3.) If you stare at the red dot for long enough, the blue circle will disappear.

4.) The blue bars will fade away the longer you look at the black dot.

5.) Staring at the black cross will cause the pink dots to fade away. You may even see the pink dots replaced by green spots.

6.) Lock your eyes on the middle of this picture. It will disappear after a few seconds.

7.) The gray area fades away the longer you stare at the black dot.