RT Book, Section
A1 Knoop, Kevin J.
A1 Palma, James K.
A2 Knoop, Kevin J.
A2 Stack, Lawrence B.
A2 Storrow, Alan B.
A2 Thurman, R. Jason
SR Print(0)
ID 1181039758
T1 Subconjunctival Hemorrhage
T2 The Atlas of Emergency Medicine, 5e
YR 2021
FD 2021
PB McGraw-Hill
PP New York, NY
SN 9781260134940
LK accessemergencymedicine.mhmedical.com/content.aspx?aid=1181039758
RD 2024/10/09
AB A  subconjunctival  hemorrhage  or  hematoma  (SCH)  may  be  a  minor  non–vision-threatening  finding,  or  it  could  be  associated  with  a  major  vision-threatening  injury.  SCH  may  occur  with  trivial  events  such  as  a  cough,  sneeze,  Valsalva  maneuver,  or  minor  blunt  trauma.  The  blood  is  usually  bright  red  and  sharply  circumscribed  and  appears  flat.  It  is  limited  to  the  bulbar  conjunctiva  and  stops  abruptly  at  the  limbus.  This  appearance  is  important  to  differentiate  from  bloody  chemosis,  which  can  occur  with  scleral  rupture  or  nontraumatic  conditions.  Uncomplicated  SCH  does  not  usually  cause  pain  or  diminution  in  visual  acuity.