Gas permeable (GP) and scleral lenses provide optical precision and therapeutic value that soft lenses often cannot achieve. Whether prescribed for keratoconus, high myopia, irregular astigmatism, or post-surgical corneas, these lenses interact with the ocular surface in fundamentally different ways. Their material properties and tear film dynamics require care systems that are not merely compatible—but specifically formulated.

Tear film stability is a central determinant of contact lens tolerance, optical consistency, and long-term ocular surface health. While all contact lens modalities influence tear dynamics to some degree, specialty lenses, such as scleral lenses used in keratoconus management, introduce distinct physiological considerations.

The development of a modern multi-purpose solution (MPS) requires a careful balance between antimicrobial efficacy, material compatibility, and ocular surface tolerance. As contact lens materials continue to evolve, particularly in the areas of specialty lenses such as GP and scleral designs, formulation strategy becomes increasingly relevant.