title: The increase of intra-abdominal pressure can affect intraocular pressure.
abstract: OBJECTIVE
  This study aims to explore the usage of intraocular pressure measurements as the early indicator of the increase in intra-abdominal pressure.
  
  
  METHODS
  In this prospective study, 40 patients undergoing elective surgery were included. Patients were divided into four groups of 10 patients. The control group (Group C) was not subjected to laparoscopic intervention. Laparoscopic surgery was, respectively, performed with an intra-abdominal pressure of 9, 12, and 15 mmHg in Groups L (low), M (medium), and H (high pressure). Intraocular pressure was measured binocularly in each patient at three different times (before, during, and end of surgery) using a contact tonometer.
  
  
  RESULTS
  Patients' gender, age, body mass index (BMI), American Society of Anesthesiology (ASA) class, and operative times were not different among the groups. No complications occurred with either the surgery or measurement of intraocular pressure. Intubation was associated with a severe rise in IOP (P < 0.05). An increase in intraocular pressure was seen in groups M and H (P < 0.05).
  
  
  CONCLUSIONS
  Intraocular pressure was increased in the groups with an intra-abdominal pressure of 12 mmHg or more. Measuring the intraocular pressure might be a useful method to estimate the intra-abdominal pressure. This trial is registered with NCT02319213.
authors: Department of Surgery, Selcuk University, Faculty of Medicine, 42075 Konya, Turkey.
authors: Ilhan
authors: I
authors: Ece
authors: Department of Surgery, Konya Medicana Hospital, 42100 Konya, Turkey.
authors: Celalettin
authors: C
authors: Vatansev
authors: Department of Surgery, Necmettin Erbakan University, Faculty of Medicine, 42080 Konya, Turkey.
authors: Tevfik
authors: T
authors: Kucukkartallar
authors: Department of Surgery, Necmettin Erbakan University, Faculty of Medicine, 42080 Konya, Turkey.
authors: Ahmet
authors: A
authors: Tekin
authors: Department of Surgery, Necmettin Erbakan University, Faculty of Medicine, 42080 Konya, Turkey.
authors: Adil
authors: A
authors: Kartal
authors: Department of Eye Surgery, Necmettin Erbakan University, Faculty of Medicine, 42080 Konya, Turkey.
authors: Mehmet
authors: M
authors: Okka
mesh_terms: D034841:Abdominal Cavity / Q000502:physiology* / Q000601:surgery; D000328:Adult; D005260:Female; D006801:Humans; D007429:Intraocular Pressure / Q000502:physiology*; D010535:Laparoscopy / Q000379:methods; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D014065:Tonometry, Ocular / Q000379:methods; D055815:Young Adult
references: Ann Surg. 1984 Jan;199(1):28-30
references: 6691728
references: J Neurosurg. 2014 Sep;121(3):680-7
references: 24857243
references: Surg Endosc. 1998 Mar;12(3):266-9
references: 9502709
references: Intensive Care Med. 2005 Nov;31(11):1577-81
references: 16193329
references: Crit Care. 2006;10(2):R51
references: 16569255
references: World J Surg. 2009 Jun;33(6):1116-22
references: 19363690
references: Crit Care Med. 1997 Mar;25(3):496-503
references: 9118668
references: J Trauma. 1998 Sep;45(3):597-609
references: 9751558
references: Intensive Care Med. 2007 Oct;33(10):1811-4
references: 17594072
references: Intensive Care Med. 2006 Nov;32(11):1722-32
references: 16967294
references: J Clin Invest. 1947 Sep;26(5):1010-22
references: 16695476
references: Ann Emerg Med. 2004 May;43(5):585-91
references: 15111918
references: Crit Care. 2006;10(4):R98
references: 16934130
references: Langenbecks Arch Surg. 2008 Nov;393(6):833-47
references: 18560882
references: Eye (Lond). 2010 Jul;24(7):1279-83
references: 19960037
references: Acad Emerg Med. 2008 Feb;15(2):201-4
references: 18275454
references: Endoscopy. 1998 Nov;30(9):778-80
references: 9932758
references: J Surg Res. 1976 May;20(5):401-4
references: 933497
references: Intensive Care Med. 2007 Jun;33(6):951-62
references: 17377769
references: J Surg Res. 1981 Mar;30(3):249-55
references: 7230773