Playbuzz is known for its addicting quizzes and games, and this particular one is about to suck you in. It claims to test your vision by showing you colors in the same family and asking you to choose which one is different. We played several times and one time chose the wrong answers on purpose — only to still get the "healthy vision" result. So be warned: it's definitely probably not as accurate as other vision tests out there, but it sure is fun. Have at it!