Sections View Full Chapter Figures Tables Videos 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 GET ACCESS TO THIS RESOURCE 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 Get Free Access Through Your Institution Contact your institution's library to ask if they subscribe to McGraw-Hill Medical Products. Access My Subscription GET ACCESS TO THIS RESOURCE Subscription Options Pay Per View Timed Access to all of AccessPediatrics 24 Hour $34.95 (USD) Buy Now 48 Hour $54.95 (USD) Buy Now Best Value AccessPediatrics Full Site: One-Year Individual Subscription $595 USD Buy Now View All Subscription Options