The lids on the 64-ounce stainless steel bottles can eject and strike consumers, two of whom reported permanent vision loss as a result, safety regulators said.

The recall by Walmart covers “Ozark Trail 64 oz Stainless Steel Insulated Water Bottles” which have been sold at Walmart’s stores across the US since 2017.

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.