Effect of monovalent electrolyte solutions on the human tear ferning pattern.
Essam S AlmutlebGamal A El-HitiHesham A Al-DawasMohammed K AlanziMohammed AlquwayiAbdullah G AlotaibiMashaaer A BaashenBasal H AltoaimiSaud A AlanaziAli M MasmaliPublished in: PloS one (2023)
The TF test was used in vitro to assess the impact of the addition of a low concentration of sodium and potassium chloride solutions on tears collected from humans. The TF grades of human tears significantly improved after the addition of either sodium or potassium chloride solution. The mechanism for the improvement in TF grades due to the addition of electrolyte solutions must be investigated.