A process for producing a synthetic tear drop suitable for forming a liquid contact lens film, comprising the steps of providing a drop of liquid comprising a lipid phase, an aqueous phase, and optionally a mucous phase, and a meniscus between the lipid phase and the aqueous phase, and treating the drop by electrowetting to change the shape of meniscus and provide a modified tear drop suitable for forming a liquid contact lens. Also disclosed is a synthetic tear drop having a lipid phase comprising oil, an aqueous phase comprising water, electrolytes, surfactant such as an amino acid and optionally metabolites, optionally a mucous phase containing mucins, and a meniscus between the lipid phase and the aqueous phase, wherein the shape of the aqueous phase has been modified by electrowetting. The modified tear drop is generally compositionally and volumetrically similar to a natural human basal tear.