Primary open-angle glaucoma (POAG) is a chronic, progressive, usually bilateral disease of the eye with an insidious onset.
It is most often characterized by optic nerve damage, defects in the retinal fiber layer and subsequent visual field loss in the absence of underlying ocular disease or congenital abnormalities.
It is generally asymptomatic until it has caused a significant loss of visual field.
Occasionally, patients with very high intraocular pressure may complain of nonspecific headache, discomfort, intermittent blurring of vision or even halos caused by corneal edema.
Unusual involvement of the eyes with atypical presentations may occur in patients with inflammatory bowel diseases (IBD) on antitumour necrosis factor (anti-TNF) therapy, according to a recent study presented at the 2019 Advances in Inflammatory Bowel Diseases Annual Meeting (AIBD 2019).