Most people think about putting on sunscreen before going out on a sunny summer day, but your eyes also need protection too, according to Prevent Blindness Iowa spokeswoman Amy O’Brien. O’Brien says you could possibly suffer a corneal sunburn which can be very painful and cause temporary blindness. She says unprotected eyes can also experience long-term damage as well.She says it can lead to cataracts later in your life.O’Brien says you need to check your sunglasses to make sure they’ll block out the U-V rays. And she says you don’t have to spend a lot to get good protection.She says you don’t have to buy an expensive pair of sunglasses, just be sure they block at least 99 percent of the u-v rays.O’Brien says there’s another simple way to protect your eyes.You can wear a hat to help block the sun from your eyes.There are almost 258-thousand Iowans over the age of 40 who suffer from a cataract.