Abstract: A container suitable for holding at least one substance for use in a process for cleaning contact lenses using a fluid, includes at least one first and at least one second part assembled to form a sealed cavity for holding the substance, the first and the second parts being formed of a material having an expansion coefficient when embedded in the fluid. The dimensioning of the first and the second parts and the expansion coefficients are chosen so that, subsequent to the expansion of the first and/or the second parts, an opening is defined between the first and the second parts.

Abstract: In an apparatus for disinfecting contact lenses (19, 20), said contact lenses are immersed in a reaction vessel (1) with a 3% H.sub.2 O.sub.2 -solution (21). The contact lenses (19, 20) are placed in a lens holder (13, 14) on a frame (6) which also comprises a catalyst (9) in a compartment (7), to which the H.sub.2 O.sub.2 -solution has access. The catalyst (9) neutralizes the H.sub.2 O.sub.2 -solution, but said neutralization is delayed at first by the developed oxygen being collected and maintained in contact with the surface of an apertured system of spokes (10; 10a to 10h) of the catalyst (9) in such a manner that the disinfecting effect is improved.