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Tonicity describes the amount of solute in a solution. The measure of the tonicity of a solution, or the total amount of solutes dissolved in a specific amount of solution, is called its osmolarity. Three terms—hypotonic, isotonic, and hypertonic—are used to relate the osmolarity of a cell to the osmolarity of the extracellular fluid that contains the cells. In a hypotonic solution, such as tap water, the extracellular fluid has a lower concentration of solutes than the fluid inside...
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The tonicity of a solution determines if a cell gains or loses water in that solution. The tonicity depends on the permeability of the cell membrane for different solutes and the concentration of nonpenetrating solutes in the solution within and outside of the cell. If a semipermeable membrane hinders the passage of some solutes but allows water to follow its concentration gradient, water moves from the side with low osmolarity (i.e., less solute) to the side with higher osmolarity (i.e.,...
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Method to Measure Tone of Axial and Proximal Muscle
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Will Tonic Water Stop My Eyelid Twitching?

Majid Moshirfar1,2,3, Shaan N Somani4, Kathryn M Shmunes1

  • 1HDR Research Center, Hoopes Vision, Draper, UT, USA.

Clinical Ophthalmology (Auckland, N.Z.)
|March 19, 2020
PubMed
Summary

Eyelid myokymia, or eyelid twitching, is usually temporary. This article explores tonic water as a potential home remedy, examining its proposed mechanism and safety for chronic eyelid twitching.

Keywords:
eyelid twitchingmyokymiaquininetonic water

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Area of Science:

  • Ophthalmology
  • Neurology

Background:

  • Eyelid myokymia, or eyelid twitching, is a common and typically benign condition.
  • While often self-limiting, chronic cases can persist for weeks to months, leading patients to seek home remedies.
  • The search for effective and safe treatments for persistent eyelid twitching is ongoing.

Purpose of the Study:

  • To discuss the proposed pathophysiologic mechanism of tonic water in treating eyelid myokymia.
  • To evaluate the safety concerns associated with using tonic water for eyelid twitching.
  • To provide information on a potential home remedy for chronic eyelid myokymia.

Main Methods:

  • Literature review of proposed mechanisms.
  • Analysis of safety data related to tonic water consumption.
  • Discussion of anecdotal evidence and theoretical benefits.

Main Results:

  • The proposed mechanism involves quinine in tonic water potentially affecting ion channels involved in muscle contractions.
  • Safety concerns include potential side effects of quinine and the high sugar content in many tonic water formulations.
  • Limited scientific evidence exists to support tonic water as a proven treatment for eyelid myokymia.

Conclusions:

  • Tonic water is explored as a potential home remedy for eyelid myokymia.
  • While theoretically plausible due to quinine, scientific evidence is lacking.
  • Safety considerations and alternative treatments should be prioritized for chronic eyelid twitching.