A study looking at the operational feasibility of an intervention under normal or field conditions.
A study looking at the technical feasibility, where a meaningful response to treatment or intervention is sought under closely supervised conditions.
Laboratory based studies looking at the solubility of pharmaceutical compounds.
Superficial foamy patches forming on the eye. These resemble small dark spots on the whites of the eyes.
Dryness resulting from inadequate function of the lacrimal glands, which supply water to produce tears.
The amount of a compound absorbed into the body.