Optical illusions with hidden images are amazing for testing your visual powers. These illusion images challenge your brain's ...

Optical illusions are tricky images that test how we see and understand things. They help us understand how our brain handles ...

Credit: Shutterstock. Individuals can complete the test in approximately 6 minutes, at which point the test results will be made available to an eye care professional. The Food and Drug Administration ...

Three visual acuity tests taken at home produce results comparable to those achieved with standard tests taken in the office, researchers say. All the tests are free. Two measure near vision, and the ...