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 ( WMT, Financials) is recalling approximately 850,000 Ozark Trail 64-ounce stainless steel bottles due to a dangerous lid malfunction that has caused serious injuries, including permanent vision loss in two individuals, according to a July 10 alert from the U.S. Consumer Product Safety Commission.

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.