An Optical Illusion is a Visual phenomenon that tricks our brain with our eyes, whether they are working or not analyse the ...

Add Yahoo as a preferred source to see more of our stories on Google. These quizzes will all test your vision and attention to detail. The first few questions in each one will seem super easy, but ...

A cataract is a spot in your eye where the clear lens, the part that focuses light, becomes cloudy, making your vision blurry or dim. Cataracts develop slowly. An optometrist or ophthalmologist, ...

Whether you deal with conditions like dry, itchy eyes, blurred vision or cataracts -- or enjoy perfect 20/20 vision -- regular eye exams are essential for protecting your sight and maintaining eye ...

Part optometrist’s chart, part geek quiz and part typography nerd poster, this Sci-fi Eye Test features 36 letters pulled from the logos of games, comics and movie titles. We dare you to try and guess ...