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UV Exposure in Car Side Windows

babyIn North America cataracts and skin cancers happen more often on the left side of the face.  It’s probably due to drivers getting more exposure to UV light in the car.  A new study show that most cars’ side windows don’t filter out UV-A light.  The recent report in the JAMA Ophthalmology found that in all of the autos tested, the windshields consistently blocked an average of 96 percent of UV-A.  The 29 cars were from 15 manufacturers and were all ages from new to 26 years old.  But the driver-side windows blocked much less UV-A light with only 4 blocking more than 90 percent of the radiation. And the amount of UV-blocking was not better in luxury models than the others.

So to decrease your risk of cataracts and skin cancers, we recommend wearing sunglasses in the car as well as outdoors and applying sunscreen to your face, neck, arms and hands every day.