Glaucoma refers to a group of disorders characterised by a typical pattern of structural damage to the optic nerve. Loss of retinal nerve fibres results in thinning of the neural tissue at the optic nerve head. This narrowing of the neuroretinal rim leads to an increase in the optic disc cup (central depression devoid of neural tissue), with displacement of the retinal vessels towards the disc edge.

Please login or subscribe to view the rest of this page.