This product is a lens made to your exact eyeglass prescription and slots into the diopter slot of the fatshark goggles.
It's very high quality (if I held them against my eyes I see just as clear as I do through my glasses). I had/tried the fatshark diopter kit but they were terrible - they don't correct for astigmatism at all and are only in set intervals of -2 -4 -6 prescriptions, so I never used those. I'm glad I finally have the RHO Lens for my fatsharks as I can see much clearer now.
Disclaimer: I have no affiliation with RHO Lens other than purchasing their product. I may be receiving a partial cashback on the product for doing a review (you may be able to do so as well, check their website for information).
Product Link: http://rho-lens.com/rho-lens-fpl-v2/
