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A hyphaemia is common sequel to eye trauma results from damage to blood vessels in the iris with haemorrhage into the anterior chamber. As clotting does not readily occur in the aqueous humour the blood disperses through the anterior chamber where it obscures vision and impairs examination of the fundus. In time, the blood settles and creates a fluid level forms in the anterior chamber.
Usually, the hyphaema disperses within a few days and no treatment is necessary.
Occasionally, the anterior chamber becomes filled with blood causing glaucoma and corneal staining. Surgical evacuation is necessary.
Rebleeding is not uncommon and increases the risk of complications.