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Evaluation of oculokinetic perimetry
W L Chia1, I Goldberg, A Bauman
1Sydney Eye Hospital, University of Sydney, New South Wales, Australia.
Australian and New Zealand Journal of Ophthalmology
|November 26, 1999
Summary
Oculokinetic perimetry (OKP) shows promise for detecting moderate to severe glaucoma but struggles with early-stage defects. Further research is needed to improve its sensitivity and specificity for milder cases.
Area of Science:
- Ophthalmology
- Medical Diagnostics
Background:
- Glaucoma is a leading cause of irreversible blindness.
- Early detection is crucial for effective management and vision preservation.
Purpose of the Study:
- To evaluate the diagnostic accuracy of Oculokinetic Perimetry (OKP) using the Damato 26-point chart.
- To compare OKP performance against the Humphrey Field Analyser (HFA) 24-2 full threshold test for glaucoma detection.
Main Methods:
- Oculokinetic perimetry (OKP) was conducted on 98 patients (187 eyes) using a 26-point screening chart.
- Results were compared with Humphrey Field Analyser (HFA) 24-2 full threshold test data.
Main Results:
- OKP demonstrated 86.0% sensitivity and 56.1% specificity for glaucoma detection.
- Defect detection correlated with HFA mean defect and corrected pattern standard deviation.
- Moderate to severe defects were consistently identified, while milder defects were often missed.
Conclusions:
- The OKP chart's reduced sensitivity and specificity for mild glaucoma limit its screening value.
- Wider use could increase glaucoma awareness and detect moderate to severe cases.
- OKP, combined with ophthalmoscopy, may enhance detection rates among non-specialists.