From Rugby Virginia (but this applies equally to College and Club.):
Some parents have inquired about getting protective eyewear for their child. In an effort to allow people who need to wear corrective lenses to do so safely while playing rugby and to accommodate people with monocular vision or chronic eye conditions who wish to wear goggles while playing Rugby, World Rugby has developed specific goggles – “Rugby Goggles.” Rugby Goggles have been developed with a view to posing no additional risk to the wearer and other players.
Here is the link to order the goggles: http://www.irbplayerwelfare.com/goggles
No other eyewear is permitted during play, so this is our one and only option.