I have worked out a deal with RHO-Lens where you can get 10% off an order of custom corrective lenses for your Fatshark or Headplay goggles with coupon code: JB121510.
RHO-Lens produces custom FatShark and HeadPlay optical inserts, cut to your exact eyeglass prescription. When I went from FatShark Attitude v2 to Dominator HD2, the larger field-of-view of the Dominators made the edges blurry. A lot of people have this problem, but it was especially acute for me, since I have a pretty strong prescription--stronger than even the strongest -6 diopter that comes with the FatSharks. RHO-Lens custom diopter inserts make my HD2 goggles look as good as they can.
Thanks to RHO-lens for providing these lenses for review.