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Updated: Sep 28, 2025
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Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential
Published on: May 25, 2020
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[Comparison study for the proportion of underdiagnosed zonulopathy in angle closure glaucoma]
1Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology & Visual Science Key Lab, Beijing Ophthalmic Institute, Beijing 100730, China.
[Zhonghua Yan Ke Za Zhi] Chinese Journal of Ophthalmology
|March 31, 2022
Summary
Zonulopathy, a condition affecting the eye's lens support, is frequently underdiagnosed in angle closure glaucoma (ACG) patients. Shorter anterior chamber depth and ACG type are key risk factors, highlighting the need for improved preoperative diagnosis.
Area of Science:
- Ophthalmology
- Glaucoma Research
- Anterior Segment Surgery
Context:
- Angle closure glaucoma (ACG) poses a significant threat to vision.
- Zonulopathy, affecting the eye's lens support structures, is increasingly recognized in ocular conditions.
- Accurate diagnosis of zonulopathy is crucial for effective glaucoma management.
Purpose:
- To determine the prevalence and clinical features of underdiagnosed zonulopathy in ACG patients.
- To identify risk factors associated with zonulopathy in ACG.
- To compare zonulopathy characteristics between ACG and cataract patients.
Summary:
- A case-control study found zonulopathy in 46.2% of ACG patients, significantly higher than controls (6.0%).
- Preoperative diagnosis of zonulopathy was achieved in only 29.8% of ACG cases, indicating high underdiagnosis.
- Shallower anterior chamber depth (ACD), greater ACD difference between eyes, and ACG type (especially acute angle closure glaucoma) were independent risk factors for zonulopathy.
Impact:
- Highlights a high rate of underdiagnosed zonulopathy in ACG, necessitating improved diagnostic strategies.
- Suggests a potential role for zonulopathy in the pathogenesis of ACG.
- Identifies specific clinical parameters (ACD, ACD asymmetry) predictive of zonulopathy in ACG.
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