Ophtec Clear Dew SL Orthokeratology Expiration Date: December 2028 x 5 boxes, includes 2 lens cases Contains povidone-iodine disinfectant to eliminate 99% or more of microorganisms and viruses*3 Among hard lens care products where antibacterial function is mainstream, Clear Dew O2, which has a disinfecting function, thoroughly disinfects not only the lenses but also microorganisms and viruses attached to the lens case, protecting your precious eyes from infections and the like.