Are you a sharp observer? Let's find out. The image above shows a table full of vegetables. A set of glasses blends so seamlessly with the vegetables. Can you spot the glasses in 7 seconds?
Visiting an eye doctor is no longer the only way to receive a prescription for glasses. Many online tools ... had an eye examination but cannot find their prescription may start by asking their ...
Solar eclipse glasses protect your eyes by blocking the short wavelength bluish visible light that can damage your retina. A consequence of us evolving under the sun, the solar spectrum peaks at the ...