Not bad - Wetley GGRX Prescription Lenses for Google Glass ™

First order arrived and would not fit my Google Glass Explorer Edition. Optics Planet was easy going and sent out a replacement (but took almost a month to get the new one).

The new one had almost 2 millimeters difference in size, so the first was definitely manufacturer's defect. The second fits perfectly on Glass.

I use the Glass while working out and the lens mount seems stable. The Glass feels much heavier. As I'm sure others have stated, some features such as wink do not work with the lens attached.

On a final note, I'm not sure if it's the index of the plastic or the anterior/posterior curvature lens, but it took a couple days to get used the asthenopia/dysphoria induced by the lens material that I have not previously experienced with the same Mrx in my glasses, sunglasses, and surgical loupes.

Overall, they are a good (not great product), but I would be happy to sell them in my optical if Glass becomes more readily available.
Pros: Adds Mrx to Google Glass
Cons: Needs refinement

This review was written in the old system and had content requirements that are different than reviews written today.