Why is the nose the most common site of BCCs?

A study out of Australia attempts to explain why basal cell carcinomas are most commonly found on the sides of the nose. Here is the news article I found. It seems like a reasonable theory that our curved eyeballs would reflect UV rays onto the side of our noses, making skin cancer more common there than on other parts of our face that are equally exposed to sunlight. Also, the medial canthus (inner corner of the eye) is a common place to see skin cancers, but looks like it is pretty well-shadowed to direct sun. According to this study, it receives a focused ray of UV radiation reflecting from the eye, which might explain its susceptibility to BCCs. The study uses models to show how 60-100% of UV radiation is reflected from the eye surface and where this reflected radiation is eventually absorbed, helping to explain why some areas of the face are more likely to get skin cancers.

Now we need a study discussing the effects of wearing sunglasses on the distribution of skin cancers as the flatter lenses should prevent as much reflection onto the face.

Birt B, Cowling I, Coyne S, Michael G. The effect of the eye's surface topography on the total irradiance of ultraviolet radiation on the inner canthus. J Photochem Photobiol B. 2007 Apr 2;87(1):27-36

Birt B, Cowling I, Coyne S. UVR reflections at the surface of the eye. J Photochem Photobiol B. 2004 Dec 2;77(1-3):71-7.