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Accepted (AM)Open Access (License Unspecified), Open
Journal article
Intraobserver reliability of contact pachymetry in children
Journal of AAPOS, v 17(2), pp 144-148
01 Apr 2013
PMID: 23622447
Abstract
Central corneal thickness (CCT) is an important measurement in the treatment and management of pediatric glaucoma and potentially of refractive error, but data regarding reliability of CCT measurement in children are limited. The purpose of this study was to evaluate the reliability of CCT measurement with the use of handheld contact pachymetry in children.
We conducted a multicenter intraobserver test–retest reliability study of more than 3,400 healthy eyes in children aged from newborn to 17 years by using a handheld contact pachymeter (Pachmate DGH55; DGH Technology Inc, Exton, PA) in 2 clinical settings—with the use of topical anesthesia in the office and with the patient under general anesthesia in a surgical facility.
The overall standard error of measurement, including only measurements with standard deviation ≤5 μm, was 8 μm; the corresponding coefficient of repeatability, or limits within which 95% of test–retest differences fell, was ±22.3 μm. However, standard error of measurement increased as CCT increased, from 6.8 μm for CCT less than 525 μm, to 12.9 μm for CCT 625 μm and greater. The standard error of measurement including measurements with standard deviation >5 μm was 10.5 μm. Age, sex, race/ethnicity group, and examination setting did not influence the magnitude of test–retest differences.
CCT measurement reliability in children via the Pachmate DGH55 handheld contact pachymeter is similar to that reported for adults. Because thicker CCT measurements are less reliable than thinner measurements, a second measure may be helpful when the first exceeds 575 μm. Reliability is also improved by disregarding measurements with instrument-reported standard deviations >5 μm.▪
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Details
- Title
- Intraobserver reliability of contact pachymetry in children
- Creators
- Katherine K. Weise - University of Alabama at BirminghamBrett Kaminski - Jaeb Center for Health ResearchMichele Melia - Jaeb Center for Health ResearchMichael X. Repka - Johns Hopkins MedicineYasmin S. Bradfield - University of Wisconsin, Department of Ophthalmology & Visual Sciences, MadisonBradley V. Davitt - Cardinal Glennon Children’s Medical CenterDavid A. Johnson - Eye Associates of Wilmington, Wilmington, North CarolinaRaymond T. Kraker - Jaeb Center for Health ResearchRuth E. Manny - University of HoustonNoelle S. Matta - Family Eye Group, Lancaster, PennsylvaniaSusan Schloff - Associated EyecarePediatric Eye Disease Investigator GroupMitchell Scheiman - Pennsylvania College of Optometry (PCO)
- Publication Details
- Journal of AAPOS, v 17(2), pp 144-148
- Publisher
- Mosby, Inc
- Number of pages
- 5
- Grant note
- EY011751 / National Eye Institute of National Institutes of Health EY018810 / Department of Health and Human Services
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Pennsylvania College of Optometry (PCO)
- Web of Science ID
- WOS:000319027700006
- Scopus ID
- 2-s2.0-84876900959
- Other Identifier
- 991021900021204721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Ophthalmology
- Pediatrics