Goldmann Applanation Tonometry and Dynamic Contour Tonometry are not Correlated With Central Corneal Thickness in Primary Open Angle Glaucoma

Regev, Guy; Harris, Alon; Siesky, Brent; Shoshani, Yochai Z.; Egan, Patrick; Moss, A.; Zalish, Miriam; WuDunn, Darrell; Ehrlich, Rita

doi:10.1097/ijg.0b013e3181e66498

Cited by 7 publications

(6 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Recent studies have showed an established difference in IOP levels measured by DCT and GAT that varies between 0.8 and 4.9 mm Hg and exhibits, in most cases, statistically significantly higher IOP readings using the Pascal tonometer. [8][9][10][13][14][15][16][17][18][19][20][21][22][23]26,27 In the present study, DCT readings were a mean -SD of 4.3 -2.1 mm Hg higher than GAT readings (P < 0.0001), a difference that is comparable to those reported by other authors.…”

Section: Discussionsupporting

confidence: 92%

“…6 Many authors tend to confirm that DCT measurements are independent of CCT. [6][7][8]10,12,14,21 Recent studies claim a significantly lower correlation of CCT with DCT than with GAT. 9,11,13,16,19,20,22 With regard to the difference between GAT and DCT in IOP measurements, increased CCT was found to correlate with decreased DIOP.…”

Section: Discussionmentioning

confidence: 99%

“…In recent years, many studies have been published that compare the performance of DCT against other tonometers and evaluate the reproducibility of its measurements. [7][8][9][10][11][12][13][14][15][16][17][18] Measurements obtained with DCT on phacoemulsification patients and human cadaver eyes showed a better concordance of DCT to the true intracameral pressure levels rather than GAT and pneumatonometry. [5][6][7][8][9][10][11] The new method seems to be less dependent on the corneal biomechanical factors.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Association of Ocular Hypotensive Medication Types with Dynamic Contour Tonometry and Goldmann Applanation Tonometry Measurements in a Glaucoma and Ocular Hypertensive Population

Tzamalis

Kynigopoulos²,

Chalvatzis³

et al. 2013

Journal of Ocular Pharmacology and Therapeutics

View full text Add to dashboard Cite

show abstract

Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Association of Ocular Hypotensive Medication Types with Dynamic Contour Tonometry and Goldmann Applanation Tonometry Measurements in a Glaucoma and Ocular Hypertensive Population

Tzamalis

Kynigopoulos²,

Chalvatzis³

et al. 2013

Journal of Ocular Pharmacology and Therapeutics

View full text Add to dashboard Cite

show abstract

“…(61, 113) The average value of IOP over a cardiac cycle can be measured via Goldmann applanation tonometry, while IOP oscillations over a cardiac cycle can be measured via PASCAL Dynamic Contour Tonometer. (97) …”

Section: Techniques For Non-invasive Ocular Measurementsmentioning

confidence: 99%

Mathematical modeling approaches in the study of glaucoma disparities among people of African and European descents

Guidoboni¹,

Harris²,

Arciero³

et al. 2013

j coupled syst multiscale dyn

Self Cite

View full text Add to dashboard Cite

Open angle glaucoma (OAG) is a severe ocular disease characterized by progressive and irreversible vision loss. While elevated intraocular pressure (IOP) is a well-established risk factor for OAG, the progression of OAG in many cases, despite IOP treatment, suggests that other risk factors must play significant roles in the development of the disease. For example, various structural properties of the eye, ocular blood flow properties, and systemic conditions have been identified as risk factors for OAG. Ethnicity has also been indicated as a relevant factor that affects the incidence and prevalence of OAG; in fact, OAG is the leading cause of blindness among people of African descent. Numerous clinical studies have been designed to examine the possible correlation and causation between OAG and these factors; however, these studies are met with the challenge of isolating the individual role of multiple interconnected factors. Over the last decade, various mathematical modeling approaches have been implemented in combination with clinical studies in order to provide a mechanical and hemodynamical description of the eye in relation to the entire human body and to assess the contribution of single risk factors to the development of OAG. This review provides a summary of the clinical evidence of ocular structural differences, ocular vascular differences and systemic vascular differences among people of African and European descent, describes the mathematical approaches that have been proposed to study ocular mechanics and hemodynamics while discussing how they could be used to investigate the relevance to OAG of racial disparities, and outlines possible new directions of research.

show abstract

“…기존의 여러 연구에서 파스칼 안압계로 측정한 안압은 CCT와 통계학적으로 유의한 연관 관계가 없다는 결과가 있었으나, [13][14][15] Grieshaber p<0.001) (Fig. 1).…”

unclassified

Comparison of Dynamic Contour Tonometry and Goldmann Applanation Tonometry in Relation to Central Corneal Thickness

Kim

Park

Kim

et al. 2015

J Korean Ophthalmol Soc

View full text Add to dashboard Cite

Purpose: In this study we compared the intraocular pressures (IOPs) measured using dynamic contour tonometry (DCT) and Goldmann applanation tonometry (GAT) and investigated the correlation between central corneal thickness (CCT) and IOP. Methods: In a prospective study, 178 eyes of 91 subjects with glaucoma and glaucoma suspect were enrolled. IOP was measured using DCT and GAT and CCT was measured using ultrasound pachymetry. Each eye was classified into 1 of 3 groups according to their CCT: low CCT (Group A; CCT < 525 μm), normal CCT (Group B; 525 ≤ CCT < 561 μm), and high CCT (Group C; CCT ≥ 561 μm). In each group, we investigated the correlation between CCT and IOP measurement using GAT and DCT. Results: A significant correlation was found between CCT and IOP measured using GAT (p < 0.001), but not between CCT and IOP measured using DCT (p = 0.108) in all patients. Subgroup analysis showed that CCT affected IOP measured with GAT only in Group A (p = 0.027) and IOP measured with DCT was not affected by CCT in all 3 groups. Conclusions: IOP measured using GAT and DCT were significantly affected by CCT, especially when the CCT was low. CCT may have no effect on DCT thus, IOP measured using DCT is more reliable than GAT in patients with thin corneas. J Korean Ophthalmol Soc 2015;56(9):1392-1399

show abstract

Goldmann Applanation Tonometry and Dynamic Contour Tonometry are not Correlated With Central Corneal Thickness in Primary Open Angle Glaucoma

Cited by 7 publications

References 17 publications

Association of Ocular Hypotensive Medication Types with Dynamic Contour Tonometry and Goldmann Applanation Tonometry Measurements in a Glaucoma and Ocular Hypertensive Population

Association of Ocular Hypotensive Medication Types with Dynamic Contour Tonometry and Goldmann Applanation Tonometry Measurements in a Glaucoma and Ocular Hypertensive Population

Mathematical modeling approaches in the study of glaucoma disparities among people of African and European descents

Comparison of Dynamic Contour Tonometry and Goldmann Applanation Tonometry in Relation to Central Corneal Thickness

Contact Info

Product

Resources

About