This optical illusion puzzle challenges observation skills by hiding an odd number among similar digits. Backed by visual ...

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

If you believe you possess eyes as sharp as a hunter and a mind as fast as a supercomputer, take this optical illusion ...

Optical illusions are the tricksters of the puzzle world; they are designed in such a way that they fool our brains and eyes.

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 ...

Please provide your email address to receive an email when new articles are posted on . The Hadassah Self-Visual Acuity Screener demonstrated high reliability, accuracy and alignment with standard ...

July 15, 2009 — Current evidence is insufficient to determine the balance of benefits and harms of visual acuity screening for the improvement of outcomes in older adults, according to a position ...

Theta 1 and Theta 2 Orionis are two multiple-star systems within the Orion Nebula (M42). Theta1 includes several stars; the four brightest comprise the Trapezium star cluster at the heart of M42. To ...

This story is part of a series on the current progression in Regenerative Medicine. This piece is part of a series dedicated to the eye and improvements in restoring vision. In 1999, I defined ...