Document Detail


Measurement of intraocular pressure with pressure phosphene tonometry in children.
MedLine Citation:
PMID:  20672766     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
PURPOSE: To study the accuracy and acceptability of intraocular pressure (IOP) measurement by the pressure phosphene tonometer, non-contact tonometer, and Goldmann tonometer in children.
METHODS: Fifty children (5 to 14 years old) participated in this prospective comparative study. IOP was measured with the pressure phosphene tonometer, non-contact tonometer, and Goldmann tonometer by three different examiners who were masked to the results. The children were also asked to grade the degree of discomfort from 0 to 5 (0 = no discomfort; 5 = most discomfort).
RESULTS: The mean IOPs measured by the Goldmann tonometer, pressure phosphene tonometer, and non-contact tonometer were 15.9 mm Hg (standard deviation [SD]: = 5.5 mm Hg; range: 10 to 36 mm Hg), 16.0 mm Hg (SD: 2.9 mm Hg; range: 12 to 25 mm Hg), and 15.7 mm Hg (SD = 5.1 mm Hg; range: 8 to 32 mm Hg), respectively (P = .722). The mean difference between pressure phosphene tonometer and Goldmann tonometer readings was 2.9 mm Hg and that between non-contact tonometer and Goldmann tonometer readings was 2.1 mm Hg. The 95% confidence interval of the mean difference between pressure phosphene tonometer and Goldmann tonometer readings was -1.07 and 1.19, and that between non-contact tonometer and Goldmann tonometer readings was -1.07 and 0.53. The mean discomfort ratings for the pressure phosphene tonometer, non-contact tonometer, and Goldmann tonometer were 0.6, 2.0, and 2.3, respectively (P < .001).
CONCLUSION: Although the pressure phosphene tonometer was less accurate than the non-contact tonometer compared with Goldmann tonometer, it gave a reasonably close estimate and had a high specificity of raised IOP. In addition, measurement by the pressure phosphene tonometer is most acceptable to children. The pressure phosphene tonometer can be considered as an alternative method of IOP measurement in children.
Authors:
Dorothy S P Fan; Thomas Y H Chiu; Nathan Congdon; Jeffrey C W Chan; Eva Y Y Cheung; Dennis S C Lam
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Publication Detail:
Type:  Journal Article     Date:  2010-06-23
Journal Detail:
Title:  Journal of pediatric ophthalmology and strabismus     Volume:  48     ISSN:  1938-2405     ISO Abbreviation:  J Pediatr Ophthalmol Strabismus     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-05-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7901143     Medline TA:  J Pediatr Ophthalmol Strabismus     Country:  United States    
Other Details:
Languages:  eng     Pagination:  167-73     Citation Subset:  IM    
Copyright Information:
Copyright 2011, SLACK Incorporated.
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