Comparison of IOP Measurement by Goldmann Applanation Tonometer, ICare Rebound Tonometer, and Tono-Pen in Keratoconus Patients after MyoRing Implantation

Joint Authors

Rateb, Mahmoud
Abdel-Radi, Mahmoud
Eldaly, Zeiad
Elmohamady, Mohamed Nagy
Noor El Din, Asaad

Source

Journal of Ophthalmology

Issue

Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-7, 7 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2019-05-09

Country of Publication

Egypt

No. of Pages

7

Main Subjects

Medicine

Abstract EN

Purpose.

To evaluate the different IOP readings by Goldmann applanation tonometer (GAT), ICare rebound tonometer, and Tono-Pen in keratoconus patients after MyoRing implantation.

To assess the influence of central corneal thickness (CCT) and thinnest corneal location (TCL) on IOP measurements by different tonometers.

Setting.

Prospective observational study was conducted in two private centers in Egypt from February 2015 to November 2016.

Methods.

Seventeen eyes of 10 patients suffering from keratoconus and who underwent MyoRing implantation were recruited.

All subjects underwent GAT, ICare, and Tono-Pen IOP measurements in random order.

Central corneal thickness and thinnest corneal location were assessed by Pentacam.

Difference in mean in IOP readings was assessed by T-test.

Correlation between each pair of devices was evaluated by Pearson correlation coefficient.

The Bland–Altman analysis was used to assess intertonometer agreement.

Results.

Seventeen eyes (10 patients) were evaluated.

The mean IOP reading was 13.9 ± 3.68, 12.41 ± 2.87, and 14.29 ± 1.31 mmHg in GAT, ICare, and Tono-Pen group, respectively.

There was a significant difference between IOP readings by GAT/ICare and Tono-Pen/ICare (p value: 0.032 and 0.002, respectively) with no significant difference between GAT/Tono-Pen (p value: 0.554).

Mean difference in IOP measurements between GAT/ICare was 1.49 ± 2.61 mmHg, Tono-Pen/ICare was 1.89 ± 2.15 mmHg, and GAT/Tono-Pen was −0.39 ± 2.59 mmHg.

There was no significant correlation between the difference in IOP readings among any pair of devices and CCC or TCL.

The Bland–Altman analysis showed a reasonable agreement between any pair of tonometers.

American Psychological Association (APA)

Rateb, Mahmoud& Abdel-Radi, Mahmoud& Eldaly, Zeiad& Elmohamady, Mohamed Nagy& Noor El Din, Asaad. 2019. Comparison of IOP Measurement by Goldmann Applanation Tonometer, ICare Rebound Tonometer, and Tono-Pen in Keratoconus Patients after MyoRing Implantation. Journal of Ophthalmology،Vol. 2019, no. 2019, pp.1-7.
https://search.emarefa.net/detail/BIM-1185171

Modern Language Association (MLA)

Rateb, Mahmoud…[et al.]. Comparison of IOP Measurement by Goldmann Applanation Tonometer, ICare Rebound Tonometer, and Tono-Pen in Keratoconus Patients after MyoRing Implantation. Journal of Ophthalmology No. 2019 (2019), pp.1-7.
https://search.emarefa.net/detail/BIM-1185171

American Medical Association (AMA)

Rateb, Mahmoud& Abdel-Radi, Mahmoud& Eldaly, Zeiad& Elmohamady, Mohamed Nagy& Noor El Din, Asaad. Comparison of IOP Measurement by Goldmann Applanation Tonometer, ICare Rebound Tonometer, and Tono-Pen in Keratoconus Patients after MyoRing Implantation. Journal of Ophthalmology. 2019. Vol. 2019, no. 2019, pp.1-7.
https://search.emarefa.net/detail/BIM-1185171

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1185171