(BQ) Part 2 book “Ocular trauma” has contents: Acute visual field impairment, acute pain in the eye, open-globe injuries, chemical injuries of the cornea, emergency of ocular adnexa. Invite you to consult the details. | 6 Acute Visual Field Impairment Bo Huang and Suxia Li Abstract Acute visual field loss is a clinical sign that is frequently encountered in the emergency room. The visual field loss could be caused by a variety of ocular as well as neurological disease processes. Successful diagnosis of visual field loss cases requires careful differential analysis of a wide variety of possibilities, complete examinations of medical and ocular history, and comprehensive ophthalmic examinations. Ancillary tests play a major role in assisting the correct diagnosis of these diseases. Major causes of acute visual field loss are discussed in this chapter. Keywords Branch retinal artery occlusion (BRAO) · Central retinal artery occlusion (CRAO) · Branch retinal vein occlusion (BRVO) · Central retinal vein occlusion (CRVO) · Retinal detachment · Optic neuropathy · Optic neuritis · Anterior ischemic optic neuropathy · Neuroretinitis ranch Retinal Artery B Obstruction Branch retinal artery obstruction (BRAO) is a retinal vascular disorder that is often associated with systemic diseases. When dealing with this disease, it is crucial for clinicians to determine the possible sources of obstruction. The diagnosis and systemic evaluation of these patients are critical. Epidemiology and Pathogenesis Branch retinal artery obstruction is a rare event, even less common than central retinal artery obstruction (CRAO). It, however, more commonly occurred in younger patients than CRAO [1]. Men are more affected than women by a 2:1 ratio. The mean age of affected patients is 60 years, with the great majority of patients in the sixth or seventh decade of life. The right eye B. Huang (*) Department of Ophthalmology, University of Mississippi Medical Center, Jackson 39216, MS, USA e-mail: bhuang@ S. Li Shandong Eye Hospital, Shandong Eye Institute, Qingdao, China © Springer Nature Singapore Pte Ltd. 2018 H. Yan (ed.), Ocular Emergency, Ocular Trauma, .
