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Fig. 2 | BMC Ophthalmology

Fig. 2

From: Comparison of intraocular pressure as measured by three different non-contact tonometers and goldmann applanation tonometer for non-glaucomatous subjects

Fig. 2

Bland-Altman plots between IOP measurements of each NCT and GAT, as plotted against mean of two measurements for each subject together with mean difference and 95% confidence limits. The solid line indicates the mean difference of both tonometers. The dashed lines are the 95% limits of agreement (LoA). The dotted line indicates equality between tonometers, showing good equality between the 3 NCTs and GAT. C-IOP: IOP value measured by Canon NCT; N-IOP: Nidek NCT; T-IOP: Topcon NCT; G-IOP: GAT

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BMC Ophthalmology

ISSN: 1471-2415

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