CLINICAL CHARACTERISTICS OF JUVENILE OPEN-ANGLE GLAUCOMA

Đức Long Đoàn 1,2, Tấn Đỗ 1,2,, Thị Thanh Hương Nguyễn 2
1 University of Medicine and Pharmacy, Vietnam National University, Hanoi
2 Central Eye Hospital

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Abstract

Purpose: To describe the clinical characteristics of patients with juvenile open-angle glaucoma (JOAG). Patients and Methods: A cross-sectional descriptive study was conducted on patients diagnosed with JOAG at the Vietnam National Eye Hospital from June to December 2025. Results: A total of 67 eyes from 34 patients were included, with a mean age of 21.18 ± 9.42 years. The male-to-female ratio was 47.1% and 52.9%, respectively. A positive family history of glaucoma was found in 20.6% of patients. Most patients had good visual acuity (≥ 20/30: 59.7%) or fair visual acuity (20/30–20/70: 17.9%). The mean pre-treatment intraocular pressure (IOP) was relatively high at 33.51 ± 10.39 mmHg. Mean spherical equivalent refractive error was -3.02 ± 2.42 D.No eyes showed optic disc hemorrhage. β-zone peripapillary atrophy was mostly ≤ 2/4 of the disc circumference (89.5%).The vertical cup-to-disc ratio was approximately equal to the horizontal ratio. A statistically significant correlation was found between pre-treatment IOP and both age and visual acuity (p < 0.05).Eyes with normal iris crypts and normal appearing angle had the lowest pre-treatment IOP and latest onset age; eyes with normal iris crypts but featureless angle had the earliest onset age; eyes with high iris insertion and prominent deep crypts had the highest pre-treatment IOP.No significant correlation was found between pre-treatment IOP and gender, family history, spherical equivalent, or β-zone atrophy area. Conclusion: Juvenile open-angle glaucoma is essentially a group of disorders with complex and not yet fully understood pathophysiological mechanisms. Clinical features such as iris configuration and gonioscopic findings may provide clues to the underlying pathogenesis. For instance, a high iris insertion suggests a mechanism similar to congenital glaucoma and is often associated with markedly elevated intraocular pressure (IOP). In contrast, eyes with a normal-appearing anterior chamber angle on gonioscopy usually present with moderately elevated IOP, resembling the pattern observed in primary open-angle glaucoma.

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References

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