Colormax.org expands its guaranteed color blind test support with custom contact lenses designed to help users pass Ishihara and other major standardized color vision exams.

Unfortunately, this book can't be printed from the OpenBook. If you need to print pages from this book, we recommend downloading it as a PDF. Visit NAP.edu/10766 to get more information about this ...

A new report by researchers from City St George's, University of London for the Rail Safety and Standards Board (RSSB) has revealed the potential for safer and fairer color vision assessment protocols ...

The previous testing methods have shown inconsistencies, including inadequate standardization in the administration of current color vision tests. These factors have raised concerns about whether the ...

Many aspects of security positions require the discernment of colors to determine meaning. Air traffic controllers, Transportation Security Officers, pilots, and unmanned aircraft system (UAS) ...

OMAHA, Neb. (AP) — The federal government has joined more than a dozen former workers in suing Union Pacific over the way it used a vision test to disqualify workers the railroad believed were color ...

For many people, spotting blood in the urine is often the first warning sign of bladder cancer. But for those with color ...

A large electronic health record study suggests that difficulty recognizing painless blood in urine may delay diagnosis and worsen long-term survival for bladder cancer patients with color vision ...