I had Lasik 4 weeks ago and my eyes are still kind of red.It is not red all the time but sometimes it is really red. It doesn’t hurt that much anymore. I do have bit dryness. I live in Toronto and it is very cold now. Like currently the weather is feels like -19, with 25 km wind and 79% humidity. Does this cause the redness of my eyes? I kind of feel like that my under eye might be a bit puffy than other days…I am still using Refresh tears and Refresh Ultra.