L-E-Ds – or light emitting diodes - are turning up in everything from automobile taillights, to TVs, to the Christmas lights we string on our house. The good news is, LEDs are super-efficient, and use a lot less energy – so they cost a lot less to use. But the new bulbs are bad for our eyes! 

According to the journal Photochemistry and Photobiology, LEDs emit a type of UV radiation that damages our retinas, particularly, the cells that carry images to our brain.

And the C-F-Ls – or compact fluorescent bulbs – aren’t any better. Those are the squiggly bulbs we’re encouraged to use instead of standard light bulbs – because they use a lot less energy. 

But environmental biologist Dr. Helen Walls says that fluorescent bulbs also emit damaging UV light. In fact, studies show that being exposed to more than 45 hours of fluorescent light a week increases our chances of cataracts and other lens-related eye diseases by more than 10-percent.

But if you’re thinking you’d better stock up on old-school incandescent light bulbs before they’re gone, hold up. Incandescents haven’t really been banned. The regulations just require them to be more energy efficient. 

And several manufacturers have already developed incandescents that meet the new standards. 

Of course, the best thing you can do for your eyes is to use natural light whenever possible. 

And nothing’s cheaper than sunlight. Some experts estimate that you could save more than $150 dollars a year just by opening your blinds during the day.