Most Read Articles
4 days ago
Children with high dental anxiety are more likely to develop dental diseases, which, in turn, negatively affect the family’s quality of life, a recent study has found.
2 days ago
Exposure to corticosteroids in patients with autoimmune hepatitis (AIH) appears to contribute to increased risks of cataract, diabetes and bone fractures, a study has found. Notably, the fracture risk is elevated at low doses, while the risk of adverse events overall is dose-dependent and is reversible.
14 Nov 2019
In patients with atrial fibrillation (AF) and stable coronary artery disease (CAD), rivaroxaban monotherapy is noninferior to combination treatment with an antiplatelet therapy in terms of cutting the risk of cardiovascular events and mortality, according to data from the AFIRE trial.
4 days ago
Supplementation with oral nano vitamin D appears to moderate disease activity and severity grade of patients with active ulcerative colitis (UC), suggests a study, adding that this association is more evident in those achieving a target vitamin D level of 40 ng/mL.

Obstructive sleep apnoea ups risk of optic neuropathy

06 Sep 2018

Individuals with obstructive sleep apnoea (OSA) are at higher risk of developing optic neuropathy compared with those who do not have the condition, a study has found.

Researchers identified 5,129 individuals with OSA and 51,290 controls from the Taiwan Longitudinal Health Insurance Database. Mean age of the entire cohort was 48.2 years, and the majority (65.6 percent) were male. Compared with controls, OSA patients were more likely to have comorbid hypertension, diabetes, atherosclerosis, coronary artery disease, hyperlipidaemia and migraine (p<0.0001 for all).

Optic neuropathy occurred in 30 OSA patients vs 132 controls. Cox proportional hazard analysis revealed that OSA was associated with about a twofold higher risk of optic neuropathy (adjusted hazard ratio [HR], 1.95; 95 percent CI, 1.30–2.92). This association persisted regardless of the presence of comorbidity. The risk was especially higher in subgroups of patients aged <45 years (adjusted HR, 4.21; 1.93–9.18) and those who were male (adjusted HR, 1.93; 1.17–3.18).

Of note, treatment with continuous positive airway pressure (CPAP) showed no protective effect on the risk. The adjusted HRs for developing optic neuropathy vs controls were 2.31 (1.07–4.99) in the group of OSA patients who underwent CPAP and 1.82 (1.12–2.97) in the group who did not receive treatment.

In a separate cohort of 4,143 individuals with optic neuropathy and 41,430 controls, the ophthalmic condition was associated with an elevated risk of OSA (adjusted HR, 1.45; 1.02–2.07). The risk was particularly higher in subgroups of individuals aged 45–64 years (adjusted HR, 1.76; 1.08–2.86) and those who were male (adjusted HR, 1.55; 1.01–2.39).

Researchers postulated that mechanisms by which OSA may increase the risk of optic neuropathy may involve hypoxia, vascular dysregulation, and increased intracranial pressure and vasoactive substances (vascular endothelial growth factor and endothelin-1).

Additional studies with a larger sample size are needed to clarify the efficacy of treatment for OSA in reducing the risk of optic neuropathy, they added.

Editor's Recommendations
Most Read Articles
4 days ago
Children with high dental anxiety are more likely to develop dental diseases, which, in turn, negatively affect the family’s quality of life, a recent study has found.
2 days ago
Exposure to corticosteroids in patients with autoimmune hepatitis (AIH) appears to contribute to increased risks of cataract, diabetes and bone fractures, a study has found. Notably, the fracture risk is elevated at low doses, while the risk of adverse events overall is dose-dependent and is reversible.
14 Nov 2019
In patients with atrial fibrillation (AF) and stable coronary artery disease (CAD), rivaroxaban monotherapy is noninferior to combination treatment with an antiplatelet therapy in terms of cutting the risk of cardiovascular events and mortality, according to data from the AFIRE trial.
4 days ago
Supplementation with oral nano vitamin D appears to moderate disease activity and severity grade of patients with active ulcerative colitis (UC), suggests a study, adding that this association is more evident in those achieving a target vitamin D level of 40 ng/mL.