Contact lense cases : member question

From the Medicines and Healthcare Regulatory Agency (MHRA).

There is no direct requirement to include contact lens cases with every contact lens solution in the regulations, and I checked the international standards for contact lenses and contact lens care products as well, and found no requirement for this there either. 

Manufacturers may require that contact lens cases are included with every contact lens solution for various reasons, which may include regulatory requirements for reducing risk as far as possible. Therefore, if the manufacturer requires contact lens cases are included with every contact lens solution, then this requirement should be followed.