Comparison Between Dynamic Contour Tonometry and Goldmann Applanation Tonometry
Korean Journal of Ophthalmology
; : 27-31, 2009.
Article
in En
| WPRIM
| ID: wpr-39313
Responsible library:
WPRO
ABSTRACT
PURPOSE:
To compare the intraocular pressures (IOPs) measured by dynamic contour tonometry (DCT) and Goldmann applanation tonometry (GAT), and to investigate the association of IOPs on eyes of varying central corneal thickness (CCT).METHODS:
In this prospective study, 451 eyes of 233 subjects were enrolled. IOPs were measured by GAT and DCT. CCT was measured three times and the average was calculated. Each eye was classified into one of three groups according to CCT low CCT (group A, CCT550 micrometer, n=142). In each group, we investigated the association of CCT with IOP measurement by GAT and DCT.RESULTS:
The IOPs measured by GAT and DCT were significantly associated for all eyes (R=0.853, p<0.001, Pearson correlation). CCT was related with both IOP measurement by GAT and DCT with statistical significance (mixed effect model, p<0.001). However, subgroup analysis showed that CCT affected IOP measured by GAT for groups B and C, whereas it affected IOP measured by DCT only for group C.CONCLUSIONS:
IOP measured by DCT was not affected by CCT in eyes with low to normal CCT, whereas this measurement was affected in eyes of high CCT range. CCT may have less effect on IOP measurements using DCT than those obtained by GAT, within a specified range of CCT.Key words
Full text:
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Index:
WPRIM
Main subject:
Tonometry, Ocular
/
Glaucoma
/
Predictive Value of Tests
/
Prospective Studies
/
Cornea
/
Microscopy, Acoustic
/
Intraocular Pressure
Type of study:
Observational_studies
/
Prognostic_studies
Limits:
Adult
/
Aged
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Aged80
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Female
/
Humans
/
Male
Language:
En
Journal:
Korean Journal of Ophthalmology
Year:
2009
Type:
Article