Prevalence of Normal-Tension Glaucoma in Patients With Primary Aldosteronism

center dot PURPOSE: To investigate patients with primary aldosteronism (PA) and the prevalence of normal-tension glaucoma (NTG). center dot DESIGN: Cross-sectional study. center dot METHODS: Newly diagnosed PA patients were evaluated in this cross-sectional study, with ophthalmic examinations such as intraocular pressure measurements by a Goldmann applanation tonometer, central corneal thickness, slit-lamp biomicroscopic examination, gonioscopy, ophthalmoscopy, fundus photography, visual field test with a Humphrey Field Analyzer 24-2 SITA Standard program, and optical coherence tomography of the peripapillary retinal nerve fiber layer, performed in each of the subjects. Optic disc appearance, perimetric results, optical coherence tomography results, and other ocular findings were all used for determining the glaucoma diagnosis. The primary outcome was shown the prevalence of NTG in patients with PA. center dot RESULTS: NTG prevalence in the 212 PA patients was 11.8% (95% confidence interval [CI], 4.7%-20.7%). As compared to the hypertensive patients without PA, the hypertensive patients with PA exhibited a significantly increased NTG prevalence (odds ratio; 4.019, 95% CI, 1.223-13.205; P = .022). Increased NTG prevalence was associated with age, ranging from 8.8% (95% CI, 2.1%-15.6%) for those aged 40 to 49 years, to 37.5% (95% CI, 13.8%-61.2%) for those aged 70 years and older. In 72 hypertensive patients without PA, who were used as the controls, NTG prevalence was 5.2%, with a 95% CI ranging from 0.5% to 14.4%. center dot CONCLUSIONS: There was an 11.8% prevalence of NTG in PA patients, with these patients at an elevated risk of NTG, which was not mediated by blood pressure. (Am J Ophthalmol 2025;269: 339-345. (c) 2024 Elsevier Inc. All rights are reserved, including those for text and data mining, AI training, and similar technologies.)