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  1. Article: Comparison of Goldmann applanation tonometer, Tono-Pen and noncontact tonometer in children.

    Raina, Usha Kaul / Rathie, Neha / Gupta, Anika / Gupta, Shantanu Kumar / Thakar, Meenakshi

    Oman journal of ophthalmology

    2016  Volume 9, Issue 1, Page(s) 22–26

    Abstract: Background: To evaluate the agreement of Goldmann applanation tonometer (GAT) with Tono-Pen and ... years using three different tonometers: NCT, the Tono-Pen and GAT. All IOP readings were made ... Results: The mean age was 13.37 ΁ 3.51 years. The mean IOP values recorded with NCT; Tono-Pen and GAT ...

    Abstract Background: To evaluate the agreement of Goldmann applanation tonometer (GAT) with Tono-Pen and noncontact tonometer (NCT) for measurement of intraocular pressure (IOP) in pediatric age group and to evaluate the correlation between central corneal thickness (CCT) and IOP measured with the tonometers used.
    Materials and methods: IOP was measured in 200 eyes in a group of Indian children, aged between 8 and 18 years using three different tonometers: NCT, the Tono-Pen and GAT. All IOP readings were made in the office settings by the same examiner. Readings obtained were compared between the instruments and with the CCT for each tonometer. Tonometer inter-method agreement was assessed by the Bland-Altmann method. The relations of CCT with absolute IOP values and inter-tonometer differences were analyzed by linear regression.
    Results: The mean age was 13.37 ΁ 3.51 years. The mean IOP values recorded with NCT; Tono-Pen and GAT were 14.38, 15.63, and 12.44 mmHg, respectively. Both Tono-Pen and NCT recorded statistically higher IOP values than the GAT (P = 0.00) regardless of the CCT. The percentage increase of IOP measured over GAT was 15.66% for NCT and 25.70% for Tono-Pen which was also statistically significant. A correlation was found between CCT and IOP values obtained with all the three tonometers.
    Conclusion: IOP measurements on children vary significantly between instruments and correlations are affected by the corneal thickness. Further studies on children are needed to determine which instrument is most appropriate and to derive a normative IOP scale for the growing eye.
    Language English
    Publishing date 2016-02-17
    Publishing country India
    Document type Journal Article
    ZDB-ID 2484272-2
    ISSN 0974-7842 ; 0974-620X
    ISSN (online) 0974-7842
    ISSN 0974-620X
    DOI 10.4103/0974-620X.176096
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Comparison of Goldmann applanation tonometer, Tono-Pen and noncontact tonometer in children

    Usha Kaul Raina / Neha Rathie / Anika Gupta / Shantanu Kumar Gupta / Meenakshi Thakar

    Oman Journal of Ophthalmology, Vol 9, Iss 1, Pp 22-

    2016  Volume 26

    Abstract: Background: To evaluate the agreement of Goldmann applanation tonometer (GAT) with Tono-Pen and ... years using three different tonometers: NCT, the Tono-Pen and GAT. All IOP readings were made ... Results: The mean age was 13.37 ΁ 3.51 years. The mean IOP values recorded with NCT; Tono-Pen and GAT were ...

    Abstract Background: To evaluate the agreement of Goldmann applanation tonometer (GAT) with Tono-Pen and noncontact tonometer (NCT) for measurement of intraocular pressure (IOP) in pediatric age group and to evaluate the correlation between central corneal thickness (CCT) and IOP measured with the tonometers used. Materials and Methods: IOP was measured in 200 eyes in a group of Indian children, aged between 8 and 18 years using three different tonometers: NCT, the Tono-Pen and GAT. All IOP readings were made in the office settings by the same examiner. Readings obtained were compared between the instruments and with the CCT for each tonometer. Tonometer inter-method agreement was assessed by the Bland-Altmann method. The relations of CCT with absolute IOP values and inter-tonometer differences were analyzed by linear regression. Results: The mean age was 13.37 ΁ 3.51 years. The mean IOP values recorded with NCT; Tono-Pen and GAT were 14.38, 15.63, and 12.44 mmHg, respectively. Both Tono-Pen and NCT recorded statistically higher IOP values than the GAT (P = 0.00) regardless of the CCT. The percentage increase of IOP measured over GAT was 15.66% for NCT and 25.70% for Tono-Pen which was also statistically significant. A correlation was found between CCT and IOP values obtained with all the three tonometers. Conclusion: IOP measurements on children vary significantly between instruments and correlations are affected by the corneal thickness. Further studies on children are needed to determine which instrument is most appropriate and to derive a normative IOP scale for the growing eye.
    Keywords Central corneal thickness ; intraocular pressure in children ; tonometers ; Ophthalmology ; RE1-994 ; Medicine ; R
    Subject code 630
    Language English
    Publishing date 2016-01-01T00:00:00Z
    Publisher Medknow Publications
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Comparison of Goldmann Applanation, Noncontact Air Puff, and Tono-Pen XL Tonometry in Normal Controls versus Glaucoma Patients at a University Hospital in Riyadh, Saudi Arabia.

    Osman, Essam A / Gikandi, Priscilla W / Al-Jasser, Abdul-Rahman A / Alotaibi, Majeedah / Mousa, Ahmed

    Middle East African journal of ophthalmology

    2018  Volume 25, Issue 1, Page(s) 8–13

    Abstract: ... by the Goldmann applanation tonometer (GAT), the Tono-Pen XL (TPXL), and a noncontact airpuff tonometer (NCT ... in glaucoma patients and normal controls.: Methodology: In the current study, two groups of individuals ... a glaucoma-free group. The IOP was measured through GAT, NCT, and TPXL for the same participants by three ...

    Abstract Purpose: The purpose of this study is to compare intraocular pressure (IOP) measured by the Goldmann applanation tonometer (GAT), the Tono-Pen XL (TPXL), and a noncontact airpuff tonometer (NCT) in glaucoma patients and normal controls.
    Methodology: In the current study, two groups of individuals were recruited; the first group included glaucoma patients (glaucoma group) while the second one was a glaucoma-free group. The IOP was measured through GAT, NCT, and TPXL for the same participants by three different physicians in both groups. Measurements through the three devices were compared statistically. Correlations between different methods of assessment were also assessed.
    Results: In the glaucoma group, the mean IOP measured was 16.0 ± 5.5 mmHg (range, 6-40 mmHg) with GAT 20.5 ± 6.9 mmHg (range, 10-52 mmHg) with the TPXL, and 20.2 ± 6.5 mmHg (range, 8-50 mmHg) with the NCT. In the control group, the mean IOP was 14.0 ± 2.7 mmHg (range, 9-19 mmHg) with GAT, 17.3 ± 3.8 mmHg (range 6-30 mmHg) with the TPXL, and 17.9 ± 3.9 mHg (range 10-27 mmHg) with the NCT.
    Conclusion: IOP measurements were approved among the three devices with relatively higher readings using both NTC and TPXL. All three methods are required to address different situations that present in the daily clinical and surgical practice.
    MeSH term(s) Adolescent ; Adult ; Aged ; Aged, 80 and over ; Child ; Child, Preschool ; Cross-Sectional Studies ; Female ; Glaucoma/diagnosis ; Glaucoma/epidemiology ; Glaucoma/physiopathology ; Hospitals, University ; Humans ; Incidence ; Intraocular Pressure/physiology ; Male ; Middle Aged ; Reproducibility of Results ; Saudi Arabia/epidemiology ; Tonometry, Ocular/methods ; Young Adult
    Language English
    Publishing date 2018-01
    Publishing country India
    Document type Comparative Study ; Journal Article
    ZDB-ID 2545467-5
    ISSN 0975-1599 ; 0974-9233
    ISSN (online) 0975-1599
    ISSN 0974-9233
    DOI 10.4103/meajo.MEAJO_291_16
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Comparison of goldmann applanation tonometer, noncontact tonometer, and TonoPen XL for intraocular pressure measurement in different types of glaucomatous, ocular hypertensive, and normal eyes.

    Kim, Na Rae / Kim, Chan Yun / Kim, Hyunjoong / Seong, Gong Je / Lee, Eun Suk

    Current eye research

    2011  Volume 36, Issue 4, Page(s) 295–300

    Abstract: ... noncontact tonometer (NCT), and TonoPen XL in glaucomatous, ocular hypertensive (OHT), and normal eyes ... Purpose: To compare intraocular pressure (IOP) measurements by Goldmann applanation tonometer (GAT ... tonometers: GAT, NCT, and TonoPen. CCT was also measured.: Results: There was a statistically significant ...

    Abstract Purpose: To compare intraocular pressure (IOP) measurements by Goldmann applanation tonometer (GAT), noncontact tonometer (NCT), and TonoPen XL in glaucomatous, ocular hypertensive (OHT), and normal eyes, all with various central corneal thickness (CCT).
    Methods: In 508 subjects, IOP was measured by three different tonometers: GAT, NCT, and TonoPen. CCT was also measured.
    Results: There was a statistically significant difference between IOP measurements made using the three different tonometers (RMANOVA, P < 0.0001). Both NCT/GAT and TonoPen/GAT differences were significantly associated with age, CCT, IOP, and glaucoma diagnosis (multiple regression analysis, all P ≤ 0.05). CCT and IOP had the greatest effect on IOP measurement variance by different tonometers. IOP measurements made by NCT were consistently higher than those made by GAT; this difference increased both with IOP and CCT levels, but decreased with age and OHT. In addition, TonoPen overestimated the GAT in the eyes of subjects with OHT.
    Conclusion: IOP measurement differences between the three tonometers are affected by age, type of glaucoma, and especially CCT and IOP levels.
    MeSH term(s) Adolescent ; Adult ; Aged ; Aged, 80 and over ; Child ; Cornea/anatomy & histology ; Female ; Glaucoma, Open-Angle/diagnosis ; Humans ; Intraocular Pressure/physiology ; Low Tension Glaucoma/diagnosis ; Male ; Middle Aged ; Observer Variation ; Ocular Hypertension/diagnosis ; Tonometry, Ocular/instrumentation
    Language English
    Publishing date 2011-04
    Publishing country England
    Document type Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 82079-9
    ISSN 1460-2202 ; 0271-3683
    ISSN (online) 1460-2202
    ISSN 0271-3683
    DOI 10.3109/02713683.2010.542865
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 1775: Show issues Location:
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  5. Article: Srovnávací studie meren nitroocního tlaku aplanacní tonometrií, bezkontaktní tonometrií a TonoPenem.

    Ceská, Burdová M / Ferrová, K / Filous, A / Oskorypová, K / Lezatková, P / Sedlácková, P

    Ceska a slovenska oftalmologie : casopis Ceske oftalmologicke spolecnosti a Slovenske oftalmologicke spolecnosti

    2012  Volume 68, Issue 1, Page(s) 43–46

    Abstract: ... AT), non-contact tonometer (BT) and Tono-Pen (TP). It was further set the average variability ... measured in one eye at the same moment by three different methods: by Goldmann applanation tonometer ... of the intraocular pressure measured by BT was higher by 1.40 mmHg and 1.82 mmHg in comparison with AT and TP (p = 0.00002 ...

    Title translation Comparative study of intraocular pressure measurements by Goldmann applanation tonometer, noncontact tonometer and TonoPen.
    Abstract Unlabelled: The purpose of the study was to compare the levels of the intraocular pressure (NOT) measured in one eye at the same moment by three different methods: by Goldmann applanation tonometer (AT), non-contact tonometer (BT) and Tono-Pen (TP). It was further set the average variability of the performed measurements for particular tonometric methods.
    Methods: NOT was assessed in 106 eyes of 106 subjects aged 7-77 years (average 34.3 +/- 17.1 years). NOT was measured at the same moment with BT, TP and AT. The obtained data were statistically analyzed.
    Results: The average NOT was 16.55 +/- 2.95, 17.95 +/- 4.47 and 16.13 +/- 3.4 mmHg when AT, BT and TP were applied. Average variability of three measurements for AT, BT and TP was 1.51 +/- 0.96, 1.78 +/- 1.08 and 1.47 +/- 0.9 mmHg. Average NOT levels of the measured AT and TP were almost identical with a difference of 0.42 mmHg (p = 0.236). Average level of the intraocular pressure measured by BT was higher by 1.40 mmHg and 1.82 mmHg in comparison with AT and TP (p = 0.00002), respectively.
    Conclusion: NOT measurement produced almost identical average levels at AT and TP, whereas at BT the levels were much higher. Average variability of the three subsequent NOT measurements was the highest at BT, whereas at AT and TP the average variability was lower and nearly identical.
    MeSH term(s) Adolescent ; Adult ; Aged ; Child ; Female ; Humans ; Intraocular Pressure ; Male ; Middle Aged ; Tonometry, Ocular/instrumentation ; Young Adult
    Language Czech
    Publishing date 2012-02
    Publishing country Czech Republic
    Document type Comparative Study ; English Abstract ; Journal Article
    ZDB-ID 1235298-6
    ISSN 1805-4447 ; 1211-9059 ; 0009-059X
    ISSN (online) 1805-4447
    ISSN 1211-9059 ; 0009-059X
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    In stock of ZB MED Cologne/Königswinter

    Zs.B 910: Show issues Location:
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  6. Article: Influence of keratometric readings on comparative intraocular pressure measurements with Goldmann, Tono-Pen, and noncontact tonometers.

    Paranhos, A / Paranhos, F R / Prata, J A / Omi, C A / Mello, P A / Shields, M B

    Journal of glaucoma

    2000  Volume 9, Issue 3, Page(s) 219–223

    Abstract: ... with Goldmann and Tono-Pen or noncontact tonometers. ... of 202 patients from a general eye clinic were measured by Goldmann, Tono-Pen XL, and noncontact Nidek NT ... 2000 tonometers. Differences in the IOP measurements between Goldmann and the other two tonometers ...

    Abstract Purpose: To evaluate the influence of keratometric measurements on the concordance of intraocular pressure (IOP) readings with three applanation tonometers.
    Patients and methods: The IOPs of 404 eyes of 202 patients from a general eye clinic were measured by Goldmann, Tono-Pen XL, and noncontact Nidek NT 2000 tonometers. Differences in the IOP measurements between Goldmann and the other two tonometers (deltaIOPG-TP and deltaIOPG-NCT) were analyzed in the overall group and within three subgroups based on keratometry measures: flatter, intermediate, and steeper corneas (quartiles as cut-off points). Regression analysis of deltaIOP and keratometry measures was also performed. Right and left eyes were analyzed separately.
    Results: The IOP readings taken with the Goldmann tonometer were significantly higher than those taken with either of the other two tonometers within the overall study population. The deltaIOP within the three keratometric subgroups was not statistically significant except for deltaIOPG-TP in the right eyes. Regression analysis showed that keratometry and deltaIOPG-TP and deltaIOPG-NCT had a significant but very weak coefficient of correlation in the right eye, but not in the left.
    Conclusion: Corneal curvature within the normal range does not have a clinically significant influence on the concordance of IOP readings obtained with Goldmann and Tono-Pen or noncontact tonometers.
    MeSH term(s) Adolescent ; Adult ; Aged ; Aged, 80 and over ; Child ; Child, Preschool ; Cornea/anatomy & histology ; Female ; Humans ; Intraocular Pressure ; Male ; Middle Aged ; Tonometry, Ocular/instrumentation ; Tonometry, Ocular/standards
    Language English
    Publishing date 2000-06
    Publishing country United States
    Document type Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 913494-3
    ISSN 1057-0829
    ISSN 1057-0829
    DOI 10.1097/00061198-200006000-00004
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 3795: Show issues Location:
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