Sections View Full Chapter Figures Tables Videos Annotate Full Chapter Figures Tables Videos Supplementary Content +++ Key Features ++ Nontraumatic causes include juvenile xanthogranuloma and blood dyscrasias Rarely, noted in the newborn after a stressful birth +++ Clinical Findings ++ Blunt trauma severe enough to cause a hyphema may be associated with additional ocular injury, including iritis, lens subluxation, retinal edema or detachment, and glaucoma In patients with sickle cell anemia or trait, even moderate elevations of intraocular pressure may quickly lead to optic atrophy and permanent vision loss +++ Diagnosis ++ Slit-lamp examination or penlight examination may reveal a layer of blood within the anterior chamber A hyphema may be microscopic or may fill the entire anterior chamber +++ Treatment ++ A shield should be placed over the eye, the head elevated, and arrangements made for ophthalmologic referral Your MyAccess profile is currently affiliated with '[InstitutionA]' and is in the process of switching affiliations to '[InstitutionB]'. Please click ‘Continue’ to continue the affiliation switch, otherwise click ‘Cancel’ to cancel signing in. Get Free Access Through Your Institution Learn how to see if your library subscribes to McGraw Hill Medical products. Subscribe: Institutional or Individual Sign In Username Error: Please enter User Name Password Error: Please enter Password Forgot Username? Forgot Password? Sign in via OpenAthens Sign in via Shibboleth