INTRAOCULAR PRESSURE MEASUREMENT: GOLDMANN APPLANATION TONOMETER VS NON CONTACT AIRPUFF TONOMETER
Abstract
Background: An accurate assessment of Intraocular pressure (IOP) is vital in establishingdiagnosis of Glaucoma and decision making regarding various treatment modalities available. The
purpose of this study is to compare Goldmann Applanation Tonometer (GAT) with Air puff
tonometer. Methods: Cross-sectional comparative study conducted. 73 eyes from 73 patients were
included in this study and intraocular pressure (IOP) was measured by GAT and PT100 at Sheikh
Khalifa Bin Zayed Hospital, Muzaffarabad, Benazir Shaheed Teaching Hospital, Abbottabad.
Results: Mean age of the patients was 53.17±13.80 years. Mean IOP measurements showed
significant differences in measurements performed by the two tonometers (p<0.05). Correlation
revealed significant relation between PT100 and GAT (Pearson's correlation 0.715, p<0.01).
Conclusions: Compared to non-contact air-puff tonometer, the Goldmann applanation tonometer
is a reliable and consistent technique for measurement of intraocular pressure.
Keywords: Glaucoma, Intraocular pressure, Goldmann applanation tonometry, Non-contact air
puff tonometer
References
Jin-Wei Cheng, Shi-Wei Cheng, Lian-Di Gao, Guo-Cai Lu, RuiLi Wei. Intraocular pressure-lowering effects of commonly used
fixed-combination drugs with Timolol: A Systematic Review and
Meta-Analysis. PLoS One 2012;7(9):e45079.
Nakamoto K, Yasuda N, Fukuda T. Correlation of age and
intraocular pressure with visual field damage in patients with
normal-tension glaucoma. Nihon Ganka Gakkai
Zasshi 2008;112(4):371-5.
Chihara E. Assessment of true intraocular pressure: the gap
between theory and practical data. Surv Ophthalmol
;53(3):203-18.
Ping-Bo Ouyang, Cong-Yi Li, Xiao-Hua Zhu, Xuan-Chu Duan.
Assessment of intraocular pressure measured by Reichert Ocular
Response Analyzer, Goldmann Applanation Tonometry, and
Dynamic Contour Tonometry in healthy individuals. Int J
Ophthalmol 2012;5(1):102-7.
Martinez-de-la-Casa JM, Jimenez-Santos M, Saenz-Frances F,
Matilla-Rodero M, Mendez-Hernandez C, Herrero-Vanrell R,
Garcia-Feijoo J. Performance of the rebound, noncontact and
Goldmann applana-tion tonometers in routine clinical practice.
Acta Ophthalmol 2011;89(7):676-80.
Yoshio Yamazaki, Fukuko Hayamizu. Superior segmental optic
nerve hypoplasia accompanied by progressive normal-tension
glaucoma. Clin Ophthalmol 2012;6:1713-6.
GarcÃa-Resúa C, Giráldez Fernández MJ, Yebra-Pimentel E,
GarcÃa-Montero S. Clinical evaluation of the Canon TX-10
noncontact tonometer in healthy eyes. Eur J
Ophthalmol 2010;20:523-30.
Elsheikh A, Gunvant P, Jones SW, Pye D, Garway-Heath D.
Correction factors for goldmann tonometry. J Glaucoma
;22(2):156-63.
Lam AK, Chan R, Lam CH. The validity of a new noncontact
tonometer and its comparison with the Goldmann tonometer.
Optom Vis Sci 2004;81(8):601-5.
Almubrad TM, Ogbuehi KC. The effect of repeated applanation
on subsequent IOP measurements. Clin Exp Optom
;91:524-9.
Jorge J, Gonzalez-Meijome JM, Diaz-Rey JA, Almeida PR,
Parafita MA. Clinical Performance of non-contact tonometry by
Reichert AT550 in glaucomatous patients. Ophthalmic Physiol
Opt 2003;23:503-6.
Salim S, Linn DJ, Echols JR, Netland PA. Comparison of
intraocular pressure measurements with the portable PT100
noncontact tonometer and Goldmann applanation
tonometry. Clin Ophthalmol 2009;3:341-4.
AlMubrad TM. Performance of the PT100 noncontact tonometer
in healthy eyes. Clin Ophthalmol 2011;5:661-6.
Tonnu PA, Ho T, Newson T, El Sheikh A, Sharma K, White
E
, et al. The influence of central corneal thickness and age on
intraocular pressure measured by pneumotonometry, non-contact
tonometry, the Tono-Pen XL, and Goldmann applanation
tonometry. Br J Ophthalmol 2005;89:851-4.
Ogbuehi KC, Chijuka JC, Osuagwu UL. Two-position
measurement of intraocular pressure by PT100 noncontact
tonometry in comparison with Goldmann tonometry. Clin
Ophthalmol 2011;5:1227-34.
GarcÃa-Resúa C, Pena-Verdeal H, Miñones M, Giraldez MJ,
Yebra-Pimentel E. Reliability of the non-contact tonopachymeter Tonopachy NT-530P in healthy eyes. Clin Exp
Optom.May 2013 ;96(3):286-94
Downloads
Published
How to Cite
Issue
Section
License
Journal of Ayub Medical College, Abbottabad is an OPEN ACCESS JOURNAL which means that all content is FREELY available without charge to all users whether registered with the journal or not. The work published by J Ayub Med Coll Abbottabad is licensed and distributed under the creative commons License CC BY ND Attribution-NoDerivs. Material printed in this journal is OPEN to access, and are FREE for use in academic and research work with proper citation. J Ayub Med Coll Abbottabad accepts only original material for publication with the understanding that except for abstracts, no part of the data has been published or will be submitted for publication elsewhere before appearing in J Ayub Med Coll Abbottabad. The Editorial Board of J Ayub Med Coll Abbottabad makes every effort to ensure the accuracy and authenticity of material printed in J Ayub Med Coll Abbottabad. However, conclusions and statements expressed are views of the authors and do not reflect the opinion/policy of J Ayub Med Coll Abbottabad or the Editorial Board.
USERS are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, without asking prior permission from the publisher or the author. This is in accordance with the BOAI definition of open access.
AUTHORS retain the rights of free downloading/unlimited e-print of full text and sharing/disseminating the article without any restriction, by any means including twitter, scholarly collaboration networks such as ResearchGate, Academia.eu, and social media sites such as Twitter, LinkedIn, Google Scholar and any other professional or academic networking site.
