INTRAOCULAR PRESSURE MEASUREMENT: GOLDMANN APPLANATION TONOMETER VS NON CONTACT AIRPUFF TONOMETER

Authors

  • Masood Alam Shah
  • Khalid Bin Saleem
  • Talat Mehmood

Abstract

Background: An accurate assessment of Intraocular pressure (IOP) is vital in establishingdiagnosis of Glaucoma and decision making regarding various treatment modalities available. Thepurpose of this study is to compare Goldmann Applanation Tonometer (GAT) with Air pufftonometer. Methods: Cross-sectional comparative study conducted. 73 eyes from 73 patients wereincluded in this study and intraocular pressure (IOP) was measured by GAT and PT100 at SheikhKhalifa Bin Zayed Hospital, Muzaffarabad, Benazir Shaheed Teaching Hospital, Abbottabad.Results: Mean age of the patients was 53.17±13.80 years. Mean IOP measurements showedsignificant differences in measurements performed by the two tonometers (p<0.05). Correlationrevealed 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 tonometeris a reliable and consistent technique for measurement of intraocular pressure.Keywords: Glaucoma, Intraocular pressure, Goldmann applanation tonometry, Non-contact airpuff 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.

García-Resúa C, Giráldez Fernández MJ, Yebra-Pimentel E,

García-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.

García-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

Published

2012-12-01