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Trabecular Meshwork Response to Pressure Elevation in the Living Human Eye
Published on: June 20, 2015
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[Glaucomatous trabeculum: An inflammatory trabeculopathy? [French translation]]
D Cela1, F Brignole-Baudouin2, A Labbé3
1Service d'ophtalmologie, centre hospitalier national d'ophtalmologie des Quinze-Vingts, IHU FOReSIGHT, 28, rue de Charenton, 75012 Paris, France.
Journal Francais D'Ophtalmologie
|February 16, 2022
Summary
Glaucoma involves increased intraocular pressure (IOP) due to trabecular meshwork dysfunction. This review explores how inflammation, oxidative stress, and eye drop preservatives contribute to trabecular meshwork inflammation and glaucoma progression.
Area of Science:
- Ophthalmology
- Cell Biology
- Immunology
Background:
- Glaucoma is an optic neuropathy primarily linked to elevated intraocular pressure (IOP).
- Trabecular meshwork dysfunction, leading to increased resistance to aqueous humor outflow, is a key factor in elevated IOP.
- While oxidative stress and cellular senescence are implicated, the role of inflammation in trabecular meshwork pathology is under-investigated.
Purpose of the Study:
- To synthesize current knowledge on the role and mechanisms of inflammation in the healthy and glaucomatous trabecular meshwork.
- To explore the contribution of inflammation to the overall pathophysiology of glaucoma.
- To review the impact of cellular senescence, oxidative stress, and eye drop preservatives on trabecular inflammation.
Main Methods:
- Literature review focusing on inflammatory processes in glaucoma.
- Analysis of mechanisms of cellular senescence and oxidative stress.
- Examination of inflammatory mediators in the trabecular meshwork.
- Review of ocular surface and trabecular meshwork toxicity from glaucoma eye drops and preservatives.
Main Results:
- Inflammatory processes significantly impact all ocular structures in glaucoma, stemming from dysregulated para-inflammation.
- Retinal inflammation accelerates retinal ganglion cell degeneration, and ocular surface inflammation is worsened by preserved eye drops.
- Pathophysiology of trabecular meshwork inflammation in glaucoma remains poorly understood but is influenced by senescence, oxidative stress, and preservatives.
Conclusions:
- Inflammation plays a critical, multifaceted role in glaucoma pathophysiology, affecting the trabecular meshwork, retina, and ocular surface.
- Understanding trabecular meshwork inflammation mechanisms is crucial for developing novel glaucoma therapies.
- The toxicity of preservatives in glaucoma eye drops contributes to ocular surface and trabecular meshwork inflammation, exacerbating glaucoma.
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