Blue-light glasses needless: study

A University of Melbourne study concluded the lenses, marketed with claims they ease eyestrain for computer and smartphone users, are “unlikely” to reduce eyestrain. The researchers said their findings “do not support the prescription of blue-light filtering lenses to the general population.”Proponents of the lenses say blue light emitted from digital devices may not only cause eyestrain but could hurt sleep. While it readies the streaming service, the space agency is updating its website (beta.nasa.gov) with several new features. The state Department of Motor Vehicles asked for the reduction after a Cruise vehicle without a human driver collided with an emergency vehicle. The DMV said Cruise will have no more than 50 driverless vehicles in operation during the day and 150 at night.