Lens Cases Can Be A Significant Source of Microbial Contamination. to Help Prevent Eye Infections, Lens Cases Should Be Properly Cleaned, Rinsed & Air Dried. Lens Cases Should Be Replaced Every 3 Months, Or As Directed By Your Eye Care Practitioner. Use of This Lens Case W/Heat May Cause Warpage. Use For Storage During Chemical Disinfection Only. Do Not Use W/Heat. Some Chemical & Hydrogen Peroxide Systems Require Special Contact Lens Cases. Follow The Manufacturer's Instruction Or Consult Your Eye...