Dynamic contour tonometry versus Goldmann applanation tonometry: challenging the gold standard

Bochmann, Frank; Kaufmann, C.; Thiel, Michael

doi:10.1586/eop.10.68

Cited by 8 publications

(10 citation statements)

References 46 publications

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“…Sum score (n eyes) Estimated probability Observed probability 0-2 (4) o7.0% 0% (0|4) 3-4 (14) 52.6% 50% (7|14) ≥ 5 (13) 495.0%…”

Section: Table 3 Estimated Vs Observed Probabilities Of Giant Cell Armentioning

confidence: 99%

Ocular pulse amplitude as a diagnostic adjunct in giant cell arteritis

Knecht

Bachmann

Thiel

et al. 2015

Eye

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“…Sum score (n eyes) Estimated probability Observed probability 0-2 (4) o7.0% 0% (0|4) 3-4 (14) 52.6% 50% (7|14) ≥ 5 (13) 495.0%…”

Section: Table 3 Estimated Vs Observed Probabilities Of Giant Cell Armentioning

confidence: 99%

Ocular pulse amplitude as a diagnostic adjunct in giant cell arteritis

Knecht

Bachmann

Thiel

et al. 2015

Eye

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“…One person physically applies the tonometer, while another reads the result” [ 1 ]. The role of GAT as the reference standard for IOP measurement measurement is being questioned given technological advances like the Pascal Dynamic Contour Tonometry (DCT) [ 1 - 3 ].…”

Section: Discussionmentioning

confidence: 99%

“…The role of Goldmann Applanation Tonometry (GAT) as the “gold standard” for Intraocular Pressure (IOP) measurement is being challenged given advances in technology such as the Pascal Dynamic Contour Tonometry (DCT) [ 1 - 3 ]. The DCT is more difficult to perform than GAT, but has been touted as one of the most accurate tonometers to date, as it is least affected by corneal thickness or other ocular biomechanical properties [ 3 - 5 ]. The DCT compares favorably with GAT with regards to repeatability [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

“…The DCT is more difficult to perform than GAT, but has been touted as one of the most accurate tonometers to date, as it is least affected by corneal thickness or other ocular biomechanical properties [ 3 - 5 ]. The DCT compares favorably with GAT with regards to repeatability [ 3 ]. Non-contact “air puff” tonometers (NCT) are being increasingly utilized for glaucoma screening [ 6 ] and convenient because they do not require anesthesia or sterilization.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of Dynamic Contour Tonometry and Non-contact Tonometry in Older Patients Presenting with Headache or Vision Loss

Ing

Zhang

Michaelov

et al. 2018

TOOPHTJ

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Background:Dynamic Contour Tonometry (DCT) is touted to be the most accurate tonometer for Intraocular Pressure (IOP) measurement. Non-Contact “air puff” Tonometry (NCT) may be the most commonly used tonometer for screening of IOP. Elevated IOP is important to exclude in patients presenting with headache or vision loss.Objective:To determine the agreement between DCT and NCT.Methods:The IOP of adult patients 50 years of age or older presenting with headache or vision loss for possible temporal artery biopsy were prospectively recorded. NCT and DCT measurements were obtained within thirty minutes. The right eye IOP measurements were compared with paired t-test, and Bland- Altman plot analysis. The left eye IOP measurements were subsequently analyzed for confirmation of results.Results:There were 106 subjects with complete right eye data, and 104 subjects with complete left eye data. The average age was 72 years, and 70% were female. The NCT IOP was on average 3.9 mm Hg lower in the right eye, and 3.5 mm Hg lower in the left eye compared with DCT. (p<.001) In the right eye the Bland-Altman analysis showed the 95% agreement interval between the two tonometers was -2.5 to 10.4 mmHg and in the left eye -3.0 to 9.9 mmHg.Conclusion:The IOP from NCT and DCT should not be used interchangeably because their level of disagreement includes clinically important discrepancies of up to 10 mm Hg.

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“…The disadvantages of DCT include its nature as a contact tonometer, lack of wide use at present, and the need for trained staff and patient cooperation for accurate measurements [73].…”

Section: Dynamic Contour Tonometrymentioning

confidence: 99%

Tonometers—which one should I use?

Aziz

Friedman

2018

Eye

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Although several factors are known to play a role in the development and progression of glaucoma, intraocular pressure (IOP) remains the only modifiable risk factor. Medical and surgical treatments for glaucoma both aim to reduce IOP to minimize disease progression. Tonometry is therefore an essential element of the ophthalmological exam. There are several types of tonometers available currently. These range from well-established instruments that have been in clinical use for decades to new devices, which are the result of recent technological advances. The various instruments have advantages and disadvantages that affect their suitability for a given setting, purpose, and patient population. In this review, we aim to describe the most commonly available tonometers today along with their advantages, disadvantages, and applicability.

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Dynamic contour tonometry versus Goldmann applanation tonometry: challenging the gold standard

Cited by 8 publications

References 46 publications

Ocular pulse amplitude as a diagnostic adjunct in giant cell arteritis

Ocular pulse amplitude as a diagnostic adjunct in giant cell arteritis

Comparison of Dynamic Contour Tonometry and Non-contact Tonometry in Older Patients Presenting with Headache or Vision Loss

Tonometers—which one should I use?

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