Walmart has issued a recall for 850,000 metal water bottles after two customers suffered permanent vision loss from faulty lids forcefully ejecting in their faces, according to a July 10 U.S. Consumer Product Safety Commission (CPSC) notice.

Walmart is recalling its Ozark Trail 64 oz Stainless Steel Insulated Water Bottles because the lid can forcefully eject when someone tries to open the bottles after food or carbonated or perishable beverages, such as juice or milk, have been stored in it for a period of time.

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.