We are going to have a Christmas holiday very soon with Christmas is just ten days away. The three of us—Simon, Emma and I—are planning a trip to the lake to enjoy some boating and fishing during the holiday. Since the sun of this time is still pretty strong here in Australia, one of my friends advised us to wear sports sunglasses to protect against the reflection of the sunlight. According to him, water is among the typical objects that can polarize the sunlight which will cause damages to our tender eyes if no appropriate measurements are taken to block the reflection. So we decided to buy each a pair of sports prescription sunglasses before we set out. (more…)