Prior to the Maui Jim's I had a pair of Wiley X's. For the most part they were great and they worked for what I wanted them for. I had recently gone through two eye surgeries for a pterygium that went South. By South I mean it would have turned into eye cancer had it not been caught by an Ophthalmologist and removed by a surgeon. Here's a link explaining a normal ptergium:

Pterygium (Surfer's Eye): Causes, Symptoms, and Treatment

In a nutshell, pterygium's are caused from not protecting the eyes from UV, wind, dust, cold and other irritants. A pterygium on the eye is kind of like a callus on the hand. In my youth I can remember laughing at people who had to wear prescription eyeglasses on cold mornings complaining about fogging and such. Not anymore. So the Wiley X's really are the ticket with that membrane that seals out the elements. My only compliant was that the membrane does wear out and is expensive to replace, and the transitional lenses do not really get dark enough in the sun. That was back in the 2010/2011 time frame. It may be different now.

The bottom line is protect your eyes!!! You are doing the right thing.

Matt