Czech and Slovak Ophthalmology 525 Original article Contemporary Possibilities of Intraocular Pressure Measurement Hornová Jana Baxant Alina-Dana https://orcid.org/0000-0001-5072-5075 22 7 2013 4 5

Authors introduced current possibilities of measuring intraocular pressure (IOP). A list of available methods of monitoring IOP is published; contact measurement method IOP directly on the cornea, but also over upper lid, methodology of minimal contact and non-contact measurement. Following contact methods are described; former measurements of IOP by impression Schiotz tonometer and the current methodology applanation. So far as the gold standard measurement Goldmann applanation tonometer (GAT) is considered, another methodology with applanation measurements are compared: Pascal dynamic contoured tonometer (DCT ), BioResonator – resonant applanation tonometer (ART ), digital applanation tonometer Tonopen and last hit: continuous measurement of IOP by Sensimed Triggerfish. Orientation and rapid assessment is palpation pressure control over the lid and measuring by tonometer Diaton. Rebound tonometer (RBT) iCare belongs to measurements with minimal contact, no need anesthetic drops and fluorescein, therefore a self – home version of IOP measurements (Icare ONE) is developed. Non-contact measurement of IOP by different pneumotonometers is popular for screening assessment of IOP. Reichert Ocular Response Analyzer (ORA) is a non-contact applanation IOP measurement and reveals additional properties of the cornea. In the discussion of a range methodology is evaluated, the experience of other authors and their own experience is compared. For monitoring of patients is necessary to select the most suitable methodology, measure repeatedly and accurately to allow long-term monitoring of intraocular pressure.

 measurement of intraocular pressure non-contact methods contact methods continuous measurement minimal contact References Anand,A., De Moraes, G.C., Teng, Ch.C. et al.: Corneal hysteresis and Visual Field Asymmetry in Open Angle Glaucoma. IO&VS, 51, 2010; 12: 6515–6517. Barleon, L., Hoffmann, E.M., Berres, M. et al.: Comparison of dynamic contour tonometry and Goldmann applanation tonometry in glaucoma patients and healthy subjects. Am J Ophthalmol, 2006; 142: 583–590. Corcoran, J.K., Alfonso D.R.: Reimbursement considerations: corneal hysteresis testing with the ocular response analyzer (ORA), Ophthalmology web, 2000. Česká-Burdová, M., Ferrová, K., Filouš, A. et al.: Srovnávací studie mûfiení nitroočního tlaku aplanační tonometrií, bezkontaktní tonometrií a TonoPenem. Čes a Slov Oftal., 68, 2012; 1: 43–46. Davies, L., N., Bartlett, H., Mallen, A.E. H. et al.: Clinical evaluation of rebound tonometer, Acta Ophthalmol Scand, 2006; 84: 206–209. Filouš, A., Burdová, M., Malec, J.: Tono-Pen XL- tonometr vhodný pro standardní i ménû obvyklé podmínky při měření nitroočního tlaku, Čes a Slov Oftal, 54, 1998; 3: 159–165. Filouš, A., Malec, J., Burdová, M.: Naše zkušenosti s bezkontaktní tonometrií u dětí, Čes a Slov Oftal, 54, 1998; 3: 154–158. Francis, B.A., Hsieh, A., Lai, M.Y., et al.: Effects of corneal thickness, corneal curvature, and intraocular pressure level on Goldmann applanation tonometry and dynamic contour tonometry. Ophthalmology, 2007; 114, 1: 20-6. Gatinel, D.: Evaluating biomechanic properties of the cornea, J Cataract Refract Surg, 2007; 31–39. Halkiadakis I, Stratos A, Stergiopoulos G et al.: Evaluation of the Icare-ONE rebound tonometer as a self-measuring intraocular pressure device in normal subjects. Graefes Arch Clin Exp Ophthalmol, 2012; 250(8): 1207–11. Hornová, J.: Tonometrie. In: Oční propedeutika, Grada Publuishing, Praha 2011, s. 59–61. Hornová, J., Sedlák, P., Hloušková, B.: Refrakční zákroky- LASIK a nitrooãní tlak u myopických očí. Čs Oftal, 56, 2000; 2: 98-103. Hornová, J., Sedlák, P.: Pachymetrie u pacientů s glaukomem. Čs Oftal, 55, 1999, 4: 212–215. Hornová, J., Raileanu, A.: Možnosti měření nitrooãního tlaku. In: Oficiální program a sborník abstrakt - Kongres České glaukomové společnosti, str. Hornová, J.: BioResonátor a nitrooční tlak. BioResonator and intraocular pressure. In: Oficiální program a sborník abstrakt – Kongres České glaukomové společnosti, str. 37. Vydala ČGS, Praha 2012. ISBN 978-80-260-1958-9. Chui, W.S., Phil, M., Lam, A. et al.: The influence of corneal properties on rebound tonometry, Ophthalmology, 2008; 115: 80–84. Jóhannesson, G., Hallberg, P. Eklund, A. et al.: Change in intraocular pressure measurement 2 years after myopic laser-assisted subepitelial keratectomy. J Cataract Refr Surg, 2012; 38: 1637–1642. Jóhannesson, G., Hallberg, P. Eklund., A. et al.: Introduction and clinical evaluation of servo-controlled applanation resonance tonometry, Acta Ophthalmol, 2011; doi: 10.1111/j.1755- –3768.02111.x.10.1111/j.1755- Kotecha, A.: What biomechanice properties of the cornea are relevant for the clinician?, Survey of Ophthal, 52, 2007; Suppl. 2. Kraus, H.: Měření nitroočního tlaku. In: Kraus, H. a kol.: Kompendium očního lékařství. Grada publishing, 1997, s. 29–30. ISBN 80-7169-079-1. Lindell, J., Mansouri, K.: Completed clinical investigation of safety and tolerability during 24-hour SENSIMED- Triggerfish wear: Continuous IOP monitoring with a contact lens integrating a Telemetry chip., Switzerland: SENSI- MED AG, 2010. Luce, A.D.: Determining in vivo biomechanice properties of the cornea with an ocular response analyzer, J. Cataract8Refract Surg, 2005; 31: 156-162. Luce, D., Taylor, D.: Reichert Ocular Response Analyzer measures corneal biome chanical properties and IOP, Provides new indicators for corneal specialities and glaucoma management, Reichert Ophthalmic instruments, 2009. Maheshwari, R., Choudhari, N.S., Singh, M.D.: Tonometry and Care od Tonometers. J Glaucoma Practice, 2012, 6, 3: 124-130. Mangouritsas, G., Mourtzoukos, S., Mantzounis, A. et al.: Comparison of Goldmann and Pascal tonometry in relation to corneal hysteresis and central corneal thickness in nonglaucomatous eyes. Clin Ophthalmol 2011, 5: 1071- 1077. Mansouri, K., Shaarawy, T.: Continuous intraocular pressure monitoring with a wireless ocular telemetry sensor: initial clinical experience in patiens with open angle glaucoma, University of Geneva, 2011. Mansouri, K., Shaarawy, T.: First clinical experience with the SENSIMED Triggerfish during 24- hour continous IOP monitoring, University of Geneva, 2010. Mansouri, K., Weinreb, R., N.: Continuous 24 hour intraocular pressure monitoring for glaucoma with a contact lens sensor-time for a paradigma chase, Swiss Med Wkly, 2012; 142: w13545. Moses, R.A., Tarkkanen, A.: Tonometry: The pressure volume relationship in the intact human eye at low pressures. Am J Ophthalmol, 1959; 49: 646. Pallikaris, I.G., Kymionis, G.D., Ginis, H.S., et al.: Ocular Rigidity in Living Human Eye. Invest Ophthalmol Vis Sci, 2005; 46, 2: 409–414. Rutrle, M.: Pfiístrojová optika, Brno: Institut pro další vzdělávání pracovníků ve zdravotnictví, Brno, 2000; 189 s. Růžičková, E.: Srovnávací studie různých způsobů měření nitroočního tlaku. Čs. Oftal., 45, 1989, 6: 416–419. Ryazan State Instrument-Making Enterprise, Diaton tonometer [online], © 2012. Dostupné z: http://www.grpz.ru/ en/products/medical/diaton/. Řehák, S.: Glaukom. In: Řehák, S. a spol.: Oční lékařství, Avicenum, Praha, 1980, s. 159–174. Tonnu, A. P., Ho, T., Newson, T., 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: 851–854. Touboul, D., Roberts, C., M., Kérautret, J., et al.: Correlations between corneal hysteresis, intraocular pressure, and corneal central pachymetry, J Cataract Refract Surg, 34, 2008; 4: 616-622. Uživatelský manuál iCARE tonometer ONE, Finland Oy, 2009; 193 s. Uživatelský manuál Pascal dynamic contour tonometer. Praha: Erilens s.r.o., verze 1.4, 2004, 103 s. Uživatelský manuál Tono-Pen XL, U.S.A, 2000; 6 s. Ytteborg, J.: Hjalmar Schiötz and his tonometer, Tidsskrift for den norske legeforening, 121, 2011, 4: 644–500.