Icare ONE Rebound vs Goldmann Applanation Tonometry in Children With Known or Suspected Glaucoma

Nandini G Gandhi, Sasapin G. Prakalapakorn, Mays A. El-Dairi, Sarah K. Jones, Sharon F. Freedman

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Purpose: To compare Icare ONE tonometry by clinic examiner and parent/guardian to Goldmann applanation in children with known/suspected glaucoma; to evaluate the trend in intraocular pressure (IOP) with 4 repeated measurements using Icare ONE; and to evaluate the feasibility of instructing parents on the use of the Icare ONE device in the clinic setting. Design: Nonrandomized, prospective clinical study. Methods: Patients with known or suspected glaucoma were recruited from the Duke pediatric glaucoma clinic. Parent(s) of all subjects gave informed consent (and children gave assent) for participation in this research study. IOP was measured using Icare ONE by clinic examiner and parent/guardian, then using Goldmann applanation (masked physician). Each parent/guardian completed an ease-of-use survey. Results: Sixty eyes (60 children) were included. Absolute value of mean IOP difference (ICare ONE clinic examiner vs Goldmann applanation) was 3.3 ± 4.0 mm Hg (P = .001). Icare ONE IOP by clinic examiner was within 3 mm Hg of Goldmann applanation in 68% (n = 41 eyes). In eyes with >3 mm Hg difference, Icare ONE was higher than Goldmann applanation in 84%. IOP demonstrated a statistically significant downward trend with repeated sequential measurements with Icare ONE (P = .0053, r 2 = 0.9894). All parents accomplished Icare ONE tonometry on at least 1 eye; 98% reported it was "easy to learn to use.". Conclusion: Icare ONE tonometry appears accurate and well-tolerated compared to Goldmann applanation, and holds promise for clinic and home tonometry in children. IOP trends downward with successive measurements using Icare ONE, demonstrating a possible effect from presumed patient relaxation.

Original languageEnglish (US)
JournalAmerican Journal of Ophthalmology
DOIs
StateAccepted/In press - 2012
Externally publishedYes

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Manometry
Intraocular Pressure
Glaucoma
Parents
Informed Consent
Prospective Studies
Pediatrics
Physicians
Equipment and Supplies
Research

ASJC Scopus subject areas

  • Ophthalmology

Cite this

Icare ONE Rebound vs Goldmann Applanation Tonometry in Children With Known or Suspected Glaucoma. / Gandhi, Nandini G; Prakalapakorn, Sasapin G.; El-Dairi, Mays A.; Jones, Sarah K.; Freedman, Sharon F.

In: American Journal of Ophthalmology, 2012.

Research output: Contribution to journalArticle

Gandhi, Nandini G ; Prakalapakorn, Sasapin G. ; El-Dairi, Mays A. ; Jones, Sarah K. ; Freedman, Sharon F. / Icare ONE Rebound vs Goldmann Applanation Tonometry in Children With Known or Suspected Glaucoma. In: American Journal of Ophthalmology. 2012.
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