Dry Eye Dx and Tx: Malfunctioning Mucins - Report - MDSpire

Dry Eye Dx and Tx: Malfunctioning Mucins

  • By

  • Roxanna Potter, OD

  • January 1, 2026

  • 4 min

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Clinical Report: Dry Eye Dx and Tx: Malfunctioning Mucins

Overview

This report discusses the critical role of mucins in dry eye disease (DED) and highlights the limited pharmaceutical options targeting mucin dysfunction, such as rebamipide and NAC. It emphasizes the need for innovative therapeutic approaches to enhance mucin quality and quantity in DED management.

Background

Dry eye disease is a multifactorial condition that significantly impacts patients' quality of life, leading to discomfort and visual disturbances. The mucin component of the tear film is essential for maintaining ocular surface health, yet current treatment options are limited. Understanding the role of mucins and developing targeted therapies could enhance the management of DED.

Data Highlights

No numerical data provided in the source material.

Key Findings

  • Mucins are crucial for stabilizing and hydrating the tear film and protecting the ocular surface.
  • Damage to conjunctival goblet cells can lead to altered mucus quality, contributing to dry eye symptoms.
  • Topical and oral secretagogues may address mucin deficiency, but many options are not available in the U.S.
  • Compounded N-acetylcysteine (NAC) has shown promise due to its mucolytic and anti-inflammatory properties.
  • Rebamipide has been identified as a potential mucin secretagogue that improves dry eye symptoms where available.

Clinical Implications

Clinicians should consider the role of mucins in dry eye disease and explore emerging therapies that target mucin dysfunction. Awareness of the limitations of current treatments and the potential of new options like rebamipide and NAC is essential for optimizing patient care.

Conclusion

As research advances, new therapeutic strategies targeting mucin quality and quantity may significantly improve outcomes for patients with dry eye disease.

References

  1. Baudouin C, et al., Prog Retin Eye Res, 2019 -- Reconsidering the central role of mucins in dry eye and ocular surface diseases
  2. Abelson M, et al., Rev Ophthalmol, 2003 -- Mucin: What you don’t know may help you
  3. Karpecki P, Rev Optom, 2022 -- A sticky subject
  4. Swamynathan SK, Wells A, Ocul Surf, 2020 -- Conjunctival goblet cells: ocular surface functions, disorders that affect them, and the potential for their regeneration
  5. Shih KC, et al., J Inflamm (Lond), 2017 -- Systematic review of randomized controlled trials in the treatment of dry eye disease in Sjogren syndrome
  6. Eghtedari Y, et al., Surv Ophthalmol, 2022 -- The role of topical N-acetylcysteine in ocular therapeutics
  7. Contact Lens Spectrum — Dry Eye Dx and Tx: Malfunctioning Mucins
  8. Contact Lens Spectrum — Dry Eye Dx and Tx
  9. Contact Lens Spectrum — DRY EYE DX AND TX
  10. Contact Lens Spectrum — Dry Eye Dx and Tx
  11. Dry Eye Dx and Tx: Malfunctioning Mucins
  12. TFOS DEWS III: Executive Summary
  13. Safety and efficacy of rebamipide compared to artificial tears
  14. Varenicline Nasal Spray for the Treatment of Dry Eye Disease Following Corneal Collagen Crosslinking - PubMed

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