“…Engorgement of the episcleral vessels is also a common and non-specific ocular sign. However, when this sign is more obvious than the frequently concurrent conjunctival hyperaemia, it is more likely linked to intraocular diseases, for example, cataracts (Townsend 2016) and glaucoma (Ollivier et al 2009;Thomasy and Lassaline 2015).…”