"Haemorrhage usually demonstrates hyperattenuation, which may be either homogeneous or heterogeneous, in the vitreous chamber on CT 2,4-7. Similar to ultrasound, CT can also be utilised to detect underlying orbital pathologies, but has an advantage in also being able to detect extra-orbital pathologies such as subarachnoid haemorrhage (causing Terson syndrome) 2,4-7."
"The vast majority of vitreous haemorrhage occurs secondary to proliferative diabetic retinopathy, posterior vitreous detachment, retinal detachment or tear (which in itself could be due to posterior vitreous detachment or proliferative diabetic retinopathy, among other causes), orbital trauma, or ocular malignancy 1,2,8. However, in a broader sense, bleeding into the vitreous chamber occurs through two main mechanisms:"
"rupture of normal vessels via mechanical forces: posterior vitreous detachment, retinal detachment or retinal tear, closed or open orbital trauma, non-accidental injury (shaken baby syndrome), Terson syndrome 1,2"