Clinical Report: Amyloid-β & Glaucoma Links

Overview

Revise to emphasize the clinical significance of the correlation between amyloid-β levels and glaucoma severity.

Background

Glaucoma is a leading cause of irreversible blindness, traditionally viewed as a pressure-related disease. However, many patients experience progression despite normal intraocular pressure, indicating other underlying mechanisms. Recent research suggests a potential connection between glaucoma and Alzheimer’s disease, particularly through the involvement of amyloid-β peptides.

Data Highlights

Key Findings

• Aβ₁₋₄₀ and Aβ₁₋₄₂ levels were significantly elevated in exfoliation glaucoma and pseudoexfoliation syndrome compared to controls.
• Exfoliation glaucoma exhibited the highest concentrations of amyloid-β among all groups studied.
• A strong correlation was found between Aβ₁₋₄₀ and Aβ₁₋₄₂ across all clinical groups.
• Higher levels of amyloid-β correlated with thinner retinal nerve fiber layer thickness, particularly in glaucoma patients.
• The study suggests that amyloid-β could serve as a biomarker for glaucoma disease activity or progression.
• Elevated Aβ levels were independent of age and preoperative intraocular pressure.

Clinical Implications

The findings suggest that monitoring amyloid-β levels could provide insights into glaucoma progression and severity. Future therapeutic strategies may benefit from targeting amyloid-β pathways in conjunction with traditional pressure-lowering treatments.

Conclusion

This study highlights the potential role of amyloid-β in glaucoma, suggesting shared neurodegenerative pathways with Alzheimer’s disease. Further research is needed to explore amyloid-β as a biomarker and therapeutic target in glaucoma management.

References

1. Correlations between amyloid-β peptide levels in aqueous humor and retinal thickness in patients with glaucoma, Scientific Reports, 2025 -- Study on Aβ and glaucoma
2. Acta Neuropathologica — Retinal Signs of Alzheimer’s Disease: Investigating Ocular Manifestations
3. Acta Neuropathologica — Investigating the Retina's Role in Central Nervous System Disorders
4. Acta Neuropathologica — Exploring Glaucoma: Impacts on the Retina and Beyond
5. European Glaucoma Society – Terminology and guidelines for glaucoma, 6th Edition | British Journal of Ophthalmology
6. The Ocular Hypertension Treatment Study: A Randomized Trial Determines That Topical Ocular Hypotensive Medication Delays or Prevents the Onset of Primary Open-Angle Glaucoma | Glaucoma | JAMA Ophthalmology | JAMA Network
7. Optometric Management — Glaucoma: A Toxic Relationship
8. European Glaucoma Society – Terminology and guidelines for glaucoma, 6th Edition | British Journal of Ophthalmology
9. The Ocular Hypertension Treatment Study: A Randomized Trial Determines That Topical Ocular Hypotensive Medication Delays or Prevents the Onset of Primary Open-Angle Glaucoma | Glaucoma | JAMA Ophthalmology | JAMA Network
10. Correlations between amyloid-β peptide levels in aqueous humor and retinal thickness in patients with glaucoma | Scientific Reports