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Updated: May 23, 2026
07:11
Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential
Published on: May 25, 2020
[Detection of glaucomatous visual field defects using masking campimetry]
G Damm1, B J Lachenmayr, P M Vivell
1Universität-Augenklinik, München, Bundesrepublik Deutschland.
Fortschritte Der Ophthalmologie : Zeitschrift Der Deutschen Ophthalmologischen Gesellschaft
|January 1, 1991
Summary
Noise-field campimetry shows 86% sensitivity in detecting visual field defects in ocular hypertension and glaucoma patients. However, its specificity is only 31%, making it unreliable for diffuse or small defects.
Area of Science:
- Ophthalmology
- Visual Neuroscience
- Medical Technology
Context:
- Ocular hypertension and glaucoma are leading causes of irreversible blindness.
- Accurate visual field testing is crucial for early detection and management.
- Comparing novel noise-field campimetry with standard light-sense perimetry is essential for evaluating diagnostic capabilities.
Purpose:
- To evaluate the diagnostic performance of noise-field campimetry compared to standard light-sense perimetry in patients with ocular hypertension and glaucoma.
- To assess the sensitivity and specificity of noise-field campimetry for detecting various types of visual field defects.
- To determine the agreement between noise-field campimetry and light-sense perimetry in characterizing the extent and location of visual field loss.
Summary:
- Noise-field campimetry demonstrated 86% sensitivity but only 31% specificity compared to light-sense perimetry in 100 eyes.
- The method reliably detects deep, localized nerve fiber bundle defects but is unreliable for small, relative, or diffuse visual field loss.
- Subjective agreement on defect extent and location varied from poor (41-46%) to moderate (32-34%) and good (22-25%) between the two methods.
Impact:
- Noise-field campimetry may serve as a supplementary tool for detecting specific glaucomatous defects.
- Limitations in detecting subtle visual field changes necessitate continued reliance on established perimetric techniques.
- Further research is needed to refine noise-field campimetry for broader clinical application in glaucoma diagnosis.
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