Normal range of intraocular pressure during enflurane anesthesia in children

R. Masuda, K. Yokoyama, K. Tsubota

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Normal range of intraocular pressure (IOP) in children was determined by using Parkinson hand applanation tonometry under 2% enflurane and nitrous oxide in oxygen (GOE) anesthesia. Twenty atropine (0.1 mg/7 kg) premedicated ASA class 1 subjects (excluding those in whom abnormal IOP were suspected), 0-10 years of age, were studied prior to elective surgery. IOP was measured at 3 points in each subject; first IOP was measured before induction of anesthesia; 2nd and 3rd IOP were measured at 5 min. and 10 min. after the endotracheal intubation following slow induction with GOE anesthesia. A significant decrease of IOP was found without reduction of arterial pressure and heart rate under GOE anesthesia. The mean ± 2 standard deviation values considered as normal IOP range 5 and 10 minutes after intubation under 2% GOE anesthesia were from 4.2 and 13.0 mmHg and from 2.7 to 10.9 mmHg. Each institute should have its own normal IOP range in children under anesthesia for the diagnosis of congenital glaucoma.

Original languageEnglish
Pages (from-to)325-329
Number of pages5
JournalJapanese Journal of Anesthesiology
Issue number3
Publication statusPublished - 1985
Externally publishedYes

ASJC Scopus subject areas

  • Anesthesiology and Pain Medicine


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