Development and validation of a correction equation for Corvis tonometry

References

• Ambrosio R, Nogueira LP, Caldas DL, Fontes BM, Luz A, Cazal JO, Alves MR, Belin MW. 2011. Evaluation of corneal shape and biomechanics before LASIK. 51:11–38..
   Google Scholar
• Browning AC, Bhan A, Rotchford AP, Shah S, Dua HS. 2004. The effect of corneal thickness on intraocular pressure measurement in patients with corneal pathology. Br J Ophthalmol. 88:1395–1399.10.1136/bjo.2003.037887
   PubMed Web of Science ®Google Scholar
• Davey PG, Elsheikh A, Garway-Heath DF. 2013. Clinical evaluation of multiparameter correction equations for Goldmann applanation tonometry. Eye. 27:621–629.
   PubMed Web of Science ®Google Scholar
• Douthwaite WA. 2003. The asphericity, curvature and tilt of the human cornea measured using a videokeratoscope. Ophthalmic Physiol Opt. 23:141–150.10.1046/j.1475-1313.2003.00100.x
   PubMed Web of Science ®Google Scholar
• Douthwaite WA, Hough T, Edwards K, Notay H. 1999. The EyeSys videokeratoscopic assessment of apical radius and p-value in the normal human cornea. Ophthalmic Physiol Opt. 19:467–474.10.1046/j.1475-1313.1999.00462.x
   PubMed Web of Science ®Google Scholar
• Ehlers N., Bramsen T., and Sperling S. 1975. Applanation Tonometry and central corneal thickness. 53:34–43.
   Google Scholar
• Elsheikh A. 2010. Finite element modeling of corneal biomechanical behavior. J Refract Surg. 26:289–300.10.3928/1081597X-20090710-01
   PubMed Web of Science ®Google Scholar
• Elsheikh A, Wang D, Brown M, Rama P, Campanelli M, Pye D. 2007. Assessment of corneal biomechanical properties and their variation with age. Curr Eye Res. 32:11–19.10.1080/02713680601077145
   PubMed Web of Science ®Google Scholar
• Elsheikh A, Alhasso D, Kotecha A, Garway-Heath D. 2009. Assessment of the ocular response analyzer as a tool for intraocular pressure measurement. J Biomech Eng. 131:081010.10.1115/1.3148462
   Web of Science ®Google Scholar
• Elsheikh A, Geraghty B, Alhasso D, Knappett J, Campanelli M, Rama P. 2010. Regional variation in the biomechanical properties of the human sclera. Exp Eye Res. 90:624–633.10.1016/j.exer.2010.02.010
   PubMed Web of Science ®Google Scholar
• Elsheikh A, Geraghty B, Rama P, Campanelli M, Meek KM. 2010. Characterization of age-related variation in corneal biomechanical properties. J R Soc Interface. 7:1475–1485.10.1098/rsif.2010.0108
   PubMed Web of Science ®Google Scholar
• Elsheikh A, Alhasso D, Gunvant P, Garway-Heath D. 2011. Multiparameter Correction Equation for Goldmann Applanation Tonometry. Optom Vis Sci. 88:E102–E112.10.1097/OPX.0b013e3181fc3453
   PubMed Web of Science ®Google Scholar
• Elsheikh A, Whitford C, Hamarashid R, Kassem W, Joda A, Büchler P. 2013. Stress free configuration of the human eye. Med Eng Phys. 35:211–216.10.1016/j.medengphy.2012.09.006
   PubMed Web of Science ®Google Scholar
• Eysteinsson T, Jonasson F, Sasaki H, Arnarsson A, Sverrisson T, Sasaki K, Stefansson E. 2002. Central corneal thickness, radius of the corneal curvature and intraocular pressure in normal subjects using non-contact techniques: Reykjavik eye study. Acta Ophthalmol Scand. 80:11–15.10.1034/j.1600-0420.2002.800103.x
   PubMedGoogle Scholar
• Gatinel D, Hoang-Xuan T, Azar DT. 2001. Determination of corneal asphericity after myopia surgery with the excimer laser: a mathematical model. Invest Ophthalmol Vis Sci. 42:1736–1742.
   PubMed Web of Science ®Google Scholar
• Geraghty B, Jones SW, Rama P, Akhtar R, Elsheikh A.. 2012. Age-related variations in the biomechanical properties of human sclera. J. Mech. Behav. Biomed. Mater. 16:181–191. DOI: 10.1016/j.jmbbm.2012.10.011
   PubMed Web of Science ®Google Scholar
• ISO8612:2001. International Organization for Standardization. Ophthalmic instruments – tonometers. Geneva: International Organization for Standardization.
   Google Scholar
• Ko Y-C, Liu CJ-L, Hsu W-M. 2005. Varying effects of corneal thickness on intraocular pressure measurements with different tonometers. Eye. 19:327–332.10.1038/sj.eye.6701458
   PubMed Web of Science ®Google Scholar
• Kohlhaas M, Boehm AG, Spoerl E, Pürsten A, Grein HJ, Pillunat LE. 2006. Effect of central corneal thickness, corneal curvature, and axial length on applanation tonometry. Arch Ophthalmol. 124:471–476.10.1001/archopht.124.4.471
   PubMed Web of Science ®Google Scholar
• Kotecha A, White ET, Shewry JM, Garway-Heath DF. 2005. The relative effects of corneal thickness and age on Goldmann applanation tonometry and dynamic contour tonometry. Br J Ophthalmol. 89:1572–1575.10.1136/bjo.2005.075580
   PubMed Web of Science ®Google Scholar
• Kotecha A, Elsheikh A, Roberts CR, Zhu H, Garway-Heath DF. 2006. Corneal thickness- and age-related biomechanical properties of the cornea measured with the ocular response analyzer. Invest Ophthalmol Vis Sci. 47:5337–5347.10.1167/iovs.06-0557
   PubMed Web of Science ®Google Scholar
• Kwon TH, Ghaboussi J, Pecknold DA, Hashash YMA. 2008. Effect of cornea material stiffness on measured intraocular pressure. J Biomech. 41:1707–1713.10.1016/j.jbiomech.2008.03.004
   PubMed Web of Science ®Google Scholar
• Liu J, Roberts CJ. 2005. Influence of corneal biomechanical properties on intraocular pressure measurement. J Cataract Refract Surg. 31:146–155.10.1016/j.jcrs.2004.09.031
   PubMed Web of Science ®Google Scholar
• Nemeth G, Hassan Z, Csutak A, Szalai E, Berta A, Modis L. 2013. Repeatability of ocular biomechanical data measurements with a scheimpflug-based noncontact device on normal corneas. J Refract Surg. 29:558–563.10.3928/1081597X-20130719-06
   PubMed Web of Science ®Google Scholar
• Pallikaris IG, Kymionis GD, Ginis HS, Kounis GA, Tsilimbaris MK. 2005. Ocular rigidity in living human eyes. Invest Ophthalmol Vis Sci. 46:409–414.10.1167/iovs.04-0162
   PubMed Web of Science ®Google Scholar
• Quigley HA, Broman AT. 2006. The number of people with glaucoma worldwide in 2010 and 2020. Br J Ophthalmol. 90:262–267.10.1136/bjo.2005.081224
   PubMed Web of Science ®Google Scholar
• Reznicek L, Muth D, Kampik A, Neubauer AS, Hirneiss C. 2013. Evaluation of a novel Scheimpflug-based non-contact tonometer in healthy subjects and patients with ocular hypertension and glaucoma. Br J Ophthalmol. 97:1410–1414.
   Google Scholar
• Shimmyo M, Orloff PN. 2005. Corneal thickness and axial length. Am J Ophthalmol. 139:553–554.10.1016/j.ajo.2004.08.061
   PubMed Web of Science ®Google Scholar
• Shimmyo M, Ross AJ, Moy A, Mostafavi R. 2003. Intraocular pressure, Goldmann applanation tension, corneal thickness, and corneal curvature in Caucasians, Asians, Hispanics, and African Americans. Am J Ophthalmol. 136:603–613.10.1016/S0002-9394(03)00424-0
   PubMed Web of Science ®Google Scholar
• Smedowski A, Weglarz B, Tarnawska D, Kaarniranta K, Wylegala E. 2014. Comparison of three intraocular pressure measurement methods including biomechanical properties of the cornea. Invest Ophthalmol Vis Sci. 55:666–673.10.1167/iovs.13-13172
   PubMed Web of Science ®Google Scholar
• Stodtmeister R. 1998. Applanation tonometry and correction according to corneal thickness. Acta Ophthalmol Scand. 76:319–324.10.1034/j.1600-0420.1998.760313.x
   PubMedGoogle Scholar
• Tonnu P, Ho T, Newson T, ElSheikh A, Sharma K., White E, Bunce C, Garway-Heath D. 2005. 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. 89:851–854.10.1136/bjo.2004.056622
   PubMed Web of Science ®Google Scholar
• Villamarin A, Roy S, Hasballa R, Vardoulis O, Reymond P, Stergiopulos N. 2012. 3D simulation of the aqueous flow in the human eye. Med Eng Phys. 34:1462–1470.10.1016/j.medengphy.2012.02.007
   PubMed Web of Science ®Google Scholar
• Yildirim N, Sahin A, Basmak H, Bal C. 2007. Effect of central corneal thickness and radius of the corneal curvature on intraocular pressure measured with the Tono-Pen and noncontact tonometer in healthy schoolchildren. J Pediatr Ophthalmol Strabismus. 44:216–222.
   PubMed Web of Science ®Google Scholar