Designed specifically for use during chemical disinfection of soft (hydrophilic) contact lenses, the ReNu leak proof lens case is compact, durable, and easy to use. To prevent lens mix-ups, left and right caps are clearly marked. Caps form a leak-proof seal, and they open and close easily. Lens cases can be a significant source of microbial contamination. To help prevent eye infections, lens cases should be cleaned, rinsed, and air dried every day and replaced monthly.