title: pH profiles: Part I--One pH, or many?
abstract: Examples of particular characteristics of tear pH are given for a contact lens patient, both previous to fitting and following.
mesh_terms: D000222:Adaptation, Physiological; D002940:Circadian Rhythm; D003261:Contact Lenses; D006801:Humans; D006863:Hydrogen-Ion Concentration; D013666:Tears / Q000502:physiology*