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Comparison of ICare, Dynamic Contour Tonometer, and Ocular Response Analyzer with Goldmann Applanation Tonometer in Patients with Glaucoma
- Source :
- European Journal of Ophthalmology. 19:783-789
- Publication Year :
- 2009
- Publisher :
- SAGE Publications, 2009.
-
Abstract
- PURPOSE To compare the intraocular pressure (IOP) readings taken by ICare, Pascal dynamic contour tonometer (DCT), and ocular response analyzer (ORA) with those taken by Goldmann applanation tonometer (GAT). We sought to evaluate the influence of central corneal thickness (CCT) on IOP measurements and to compare patients' preferences for the four tonometers. METHODS In this prospective study, 93 eyes from 93 patients were examined. Patients were randomly divided into 4 groups to vary the order in which the tonometers were applied. CCT was measured with an ultrasound pachymeter. RESULTS The average CCT was 558+/-47.4 microm. The mean +/- standard deviation IOP for GAT, ICare, DCT, and ORA (Goldmann-correlated IOP) (ORA(GC)) were 15.1+/-4.8, 15.7+/-5.7, 18.2+/-5.1, and 18.3+/-6.6 mmHg, respectively. There was no significant difference between the mean IOP obtained with GAT and ICare (p=0.14). There was also no difference in IOP levels between the mean IOP obtained with DCT and ORA (p=0.26). There was no correlation between IOP measurements and CCT for the 4 instruments. Bland-Altman graphs showed disagreement between the measurements taken by GAT and the other instruments. There was no significant difference in patients' preference among the 4 instruments (p=0.48). CONCLUSIONS IOP readings from ICare were consistent with those from GAT, whereas DCT readings correspond well to ORA(GC) measurements. DCT and ORA readings both overestimated the GAT readings. There was no correlation between the IOP measurements and the CCT for the 4 instruments. There was no significant difference in patients' preference among the 4 instruments.
- Subjects :
- Adult
Male
medicine.medical_specialty
Intraocular pressure
Adolescent
genetic structures
Glaucoma
Cornea
Tonometry, Ocular
Young Adult
03 medical and health sciences
0302 clinical medicine
Ophthalmology
Humans
Medicine
In patient
Prospective Studies
Intraocular Pressure
Aged
Ultrasonography
Aged, 80 and over
business.industry
Significant difference
Goldmann Applanation Tonometer
General Medicine
Middle Aged
medicine.disease
eye diseases
Patient Satisfaction
030221 ophthalmology & optometry
Female
Ocular Hypertension
sense organs
Glaucoma, Angle-Closure
business
Glaucoma, Open-Angle
030217 neurology & neurosurgery
Subjects
Details
- ISSN :
- 17246016 and 11206721
- Volume :
- 19
- Database :
- OpenAIRE
- Journal :
- European Journal of Ophthalmology
- Accession number :
- edsair.doi.dedup.....6242f19c8893f71e83ac0a5e0e1bec32