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Updated: Dec 12, 2025

Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential
Published on: May 25, 2020
Comparison of visual field progression in new-diagnosed primary open-angle and exfoliation glaucoma patients in
1Eye Department, Skaraborg Hospital, Skövde, Sahlgrenska Academy, Gothenburg University & Karolinska Institute, 541 85, Skövde, Sweden. marcelo.ayala@ki.se.
Background:
The present study aimed to compare visual field progression in new-diagnosed exfoliation versus open-angle glaucoma patients.
Methods:
Retrospective study. The study included patients with new-diagnosed primary open-angle and exfoliation glaucoma. All patients were followed for 3 years with reliable visual fields. At least five reliable fields were needed for inclusion. Exfoliation and open-angle glaucoma were defined based on the European Glaucoma Society guidelines. Visual field evaluation was performed using the software threshold 24-2 of the Humphrey Field Analysis.
Outcomes:
Visual field progression. For visual field progression, three different strategies were used: mean deviation (MD), visual field index (VFI), and the guided progression analysis (GPA).
Results:
The study included 128 subjects, of the 54 in the open-angle and 74 in the exfoliation glaucoma group. The MD difference values were higher in the exfoliation (- 3.17 dB) than in the primary open-angle (- 1.25 dB) glaucoma group in the three-year follow-up period. The difference between groups was significant (t-test, p = < 0.001). The difference in VFI was calculated for the 3 years follow-up period. The difference was higher in the exfoliation (- 7.65%) than in the primary open (- 1.90%) glaucoma group (t-test, p = < 0.001). The GPA showed progression in 58% of cases in exfoliation, and 13% in primary open glaucoma group (Chi-square, p = < 0.001).
Conclusion:
The present study found a more frequent and faster visual field progression in exfoliation than in primary open-angle glaucoma patients. New-diagnosed exfoliation glaucoma patients must be controlled and treated more strictly than primary open-angle glaucoma patients to avoid visual field deterioration.
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