The large diameter contact lens case is an alternative lens case to hold large diameter lenses (11 mm-23 mm) in Menicon Progent solution. The lens case is capable of holding the 10 ml of Menicon Progent protein remover A/B mixed solution for effective protein removal. After cleaning, lenses should be stored in daily storage case; this case is only used for cleaning large diameter lenses using Menicon Progent cleanser. It is not designed to be used with any other gas permeable contact lens cleanser.