This collection of blood is called a total hyphema.
From the borehamwoodtimes.co.uk
Common eye injuries from these toys include corneal abrasion, ocular hyphema, traumatic cataract, and increased intraocular pressure.
From the sciencedaily.com
When the patient arrived at the hospital, complaining of pain, he was found to have total hyphema, neovascular glaucoma, high intraocular pressure and a detached retina.