Walmart is recalling 850,000 water bottles after two people suffered permanent vision loss trying to open them. Customers reported being hit in the face with the lid when opening the Ozark Trail brand stainless steel bottles.

The CPSC and Walmart have issued a voluntary recall notice for consumers to get a full refund and stop using or return the Ozark Trail water bottle immediately.

Walmart is recalling about 850,000 stainless steel water bottles because the lid can “forcefully eject” and unexpectedly strike consumers — resulting in permanent vision loss for two people to date.