Positive predictive value of optic disc haemorrhages for open angle glaucoma.

Objectives: To determine the positive predictive value (PPV) of disc haemorrhages (DHs) for the diagnosis of open angle glaucoma (OAG).

Methods: A retrospective review of 618 consecutive new referrals by community optometrists to a hospital glaucoma service, including 54 patients with DHs. All patients had a comprehensive eye examination.