By Dr Klaus Ehrmann

Journal articles

Bakaraju RC; Ehrmann K; Ho A; Papas EB, 2010, 'Inherent ocular spherical aberration and multifocal contact lens optical performance', Optometry and Vision Science, 87, pp. 1009 - 1022, http://dx.doi.org/10.1097/OPX.0b013e3181fbad60

Bakaraju RC; Ehrmann K; Falk D; Ho A; Papas EB, 2010, 'Physical human model eye and methods of its use to analyse optical performance of soft contact lenses', Optics Express, 18, pp. 16868 - 16882, http://dx.doi.org/10.1364/OE.18.016868

Fedtke C; Ehrmann K; Holden BA, 2009, 'A Review of Peripheral Refraction Techniques', Optometry and Vision Science, 86, pp. 429 - 446

Ehrmann K; Fedtke C; RadiÄ A, 2009, 'Assessment of computer generated vision charts', Contact Lens and Anterior Eye, 32, pp. 133 - 140

Bakaraju RC; Ehrmann K; Papas EB; Ho A, 2009, 'Do peripheral refraction and aberration profiles vary with the type of myopia? - An illustration using a ray-tracing approach', Journal of Optometry, 2, pp. 29 - 38

Papas EB; Dahms A; Carnt N; Tahhan N; Ehrmann K, 2009, 'Power profiles and short-term visual performance of soft contact lenses', Optometry and Vision Science, 86, pp. 318 - 323

Ehrmann K; Ho A; Parel JM, 2008, 'Biomechanical analysis of the accommodation apparatus in humans (Clinical and Experimental Optometry (2008) 91, 3, (302-312))', Clinical and Experimental Optometry, 91, pp. 411, http://dx.doi.org/10.1111/j.1444-0938.2008.00290.x

Ehrmann K; Kim E; Parel JM, 2008, 'Mechanical properties of intra-ocular lenses', Progress in Biomedical Optics and Imaging - Proceedings of SPIE, 6844, http://dx.doi.org/10.1117/12.787107

Ehrmann K; Ho A; Parel JM, 2008, 'Biomechanical analysis of the accommodative apparatus in primates', Clinical and Experimental Optometry, 91, pp. 302 - 312, http://dx.doi.org/10.1111/j.1444-0938.2008.00247.x

Bakaraju RC; Ehrmann K; Papas EB; Ho A, 2008, 'Finite schematic eye models and their accuracy to in-vivo data', Vision Research, 48, pp. 1681 - 1694

Bakaraju RC; Ehrmann K; Ho A; Papas EB, 2008, 'Pantoscopic tilt in spectacle-corrected myopia and its effect on peripheral refraction', Ophthalmic and Physiological Optics, 28, pp. 538 - 549

Garrett Q; Simmons P; Xu S; Vehige J; Zhao ZJ; Ehrmann K; Willcox MD, 2007, 'Carboxymethylcellulose binds to human corneal epithelial cells and is a modulator of corneal epithelial wound healing', Investigative Ophthalmology and Visual Science, 48, pp. 1559 - 1567

Stapleton FJ; Francis IC; Ehrmann K; Coroneo MT, 2006, 'Lower Eyelid tensometry in younger and older normal subjects', Eye, 20, pp. 166 - 172

Holden BA; Stretton S; Lazon De La Jara P; Ehrmann K; La Hood DL, 2006, 'The future of contact lenses: Dk/t really matters', Contact Lens Spectrum, pp. 20 - 28

Ehrmann K; Papas EB; Ho A, 2005, 'A Novel Method for Assessing Variations in Visual Acuity after the Blink', Contact Lens and Anterior Eye, pp. 157 - 162

Ehrmann K, 2005, 'How Dk is measured and is there a certifiable standard?', Global Contact, 41, pp. 56 - 58

Ehrmann K; Ho A; Parel JM, 2004, 'Ex vivo accommodation simulator II - Concept and preliminary results', Progress in Biomedical Optics and Imaging - Proceedings of SPIE, 5, pp. 48 - 58, http://dx.doi.org/10.1117/12.539111

Stapleton FJ; Tan ME; Papas EB; Ehrmann K; Golebiowski B; Vega J; Holden BA, 2004, 'Corneal and conjunctival sensitivity to air stimuli', British Journal of Ophthalmology, 88, pp. 1547 - 1551, http://www.sciencedirect.com/science/article/B6WVB-4DVW7KP-54J/2/bf90ded204d85c85187ec90edeb359db

Ehrmann K, 2001, 'A novel eyelid tensiometer', Global Contact, pp. 38 - 39

Ehrmann K; Francis IC; Stapleton FJ, 2001, 'A novel instrument to quantify the tension of upper and lower eyelids', Contact Lens and Anterior Eye, pp. 65 - 72

Ehrmann K; Ho A, 2001, 'Lens prism in RGP manufacturing and its effect on edge quality', Contact Lens and Anterior Eye, pp. 143 - 152

Ehrmann K, 1999, 'A novel method for the measurement of rigid lens profiles', Die Kontaktlinse, pp. 11 - 17

Ehrmann K; Ho A; Schindhelm KH, 1999, 'A novel method to quantify the edge contour of RGP contact lenses', Contact Lens and Anterior Eye, pp. 19 - 25

Ehrmann K; Ho A; Schindhelm K, 1998, 'A 3D optical profilometer using a compact disc reading head', Measurement Science and Technology, 9, pp. 1259 - 1265, http://dx.doi.org/10.1088/0957-0233/9/8/019

Ehrmann K; Ho A; Schindhelm KH, 1998, 'A 3D profilometer using a compact disc reading head', Measurement Science and Technology, pp. 1259 - 1265

Conference Papers

Tilia D; Falk D; Ehrmann K; Diec J; Fedtke C; Bakaraju RC, 2022, 'Binocular and Accommodative Function of STOP (R) contact lenses compared to MiSight', in INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ASSOC RESEARCH VISION OPHTHALMOLOGY INC, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000844401301193&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Diec J; Tilia D; Ehrmann K; Fedtke C; Conrad F; Wu R; Bakaraju RC, 2022, 'Visual Performance of STOP (R) contact lenses compared to MiSight', in INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ASSOC RESEARCH VISION OPHTHALMOLOGY INC, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000844401301198&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Stapleton F; Lam E; Tu A; Ehrmann K; Golebiowski B, 2020, 'Sensitivity of the central cornea to cold stimuli', in Investigative Ophthalmology and Visual Science, Association for Research in Vision and Ophthalmology, virtual, pp. 3276 - 3276, presented at ARVO annual meeting, virtual

Golebiowski B; Ehrmann K; Chen J; Truong B; Stapleton F, 2019, 'Liquid jet aesthesiometer repeatability and sex differences in corneal sensitivity.', in Investigative Ophthalmology & Visual Science, Association for Research in Vision and Ophthalmology, Vancouver, Canada, presented at ARVO, Vancouver, Canada, 28 April 2019 - 02 May 2019

Koumbo IOM; Conrad F; Sankaridurg P; Ehrmann K, 2019, 'Effects of short-term imposed optical defocus on central and peripheral eye length and choroidal thickness in healthy subjects', in INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ASSOC RESEARCH VISION OPHTHALMOLOGY INC, CANADA, Vancouver, presented at Annual Meeting of the Association-for-Research-in-Vision-and-Ophthalmology (ARVO), CANADA, Vancouver, 28 April 2019 - 02 May 2019, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000488800702114&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Ehrmann K; Fedtke C; Kho D; Yeotikar N; Shaw J; Jong M; Diec J; Tilia D, 2018, 'Reproducibility of Liquid Jet Aesthesiometer to Measure Corneal Sensitivity', in INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ASSOC RESEARCH VISION OPHTHALMOLOGY INC, HI, Honolulu, presented at Annual Meeting of the Association-for-Research-in-Vision-and-Ophthalmology (ARVO), HI, Honolulu, 29 April 2018 - 03 May 2018, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000442912500111&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Sankaridurg P; Bakaraju RC; Morgan J; Chen X; Tilia D; Ho A; Ehrmann K; Weng R; Conrad F; Smith EL; Naduvilath TJ; Erickson P, 2017, 'Novel contact lenses designed to slow progress of myopia: 12 month results', in INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ASSOC RESEARCH VISION OPHTHALMOLOGY INC, MD, Baltimore, presented at Annual Meeting of the Association-for-Research-in-Vision-and-Ophthalmology (ARVO) - Imaging in the Eye, MD, Baltimore, 06 May 2017 - 11 May 2017, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000432170306131&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Tilia D; Sha J; Kho D; Munro A; Delaney S; Thomas V; Ehrmann K; Bakaraju RC, 2016, 'Accommodative responses in myopic children wearing extended depth of focus contact lenses', in INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ASSOC RESEARCH VISION OPHTHALMOLOGY INC, WA, Seattle, presented at Annual Meeting of the Association-for-Research-in-Vision-and-Ophthalmology (ARVO), WA, Seattle, 01 May 2016 - 05 May 2016, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000394174003307&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Bakaraju RC; Fedtke C; Chung J; Falk D; Ehrmann K, 2016, 'Global refraction and aberration profiles with single-vision and multifocal contact lenses.', in INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ASSOC RESEARCH VISION OPHTHALMOLOGY INC, WA, Seattle, presented at Annual Meeting of the Association-for-Research-in-Vision-and-Ophthalmology (ARVO), WA, Seattle, 01 May 2016 - 05 May 2016, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000394210602396&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Bakaraju RC; Fedtke C; Ehrmann K; Falk D; Chung J; Ho A; Holden BA, 2014, 'Accommodation error with single vision, bifocal and multifocal soft commercial contact lenses', in INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ASSOC RESEARCH VISION OPHTHALMOLOGY INC, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000433203504093&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Gonzalez A; Ehrmann K; Rowaan C; Lee W; Aguilar MC; McClellan AL; Shalabi NM; Galor A; Parel J-MA, 2014, 'Age-Related Corneal Sensitivity assessed with a modified BHVI-Belmonte Aesthesiometer: a preliminary study', in INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ASSOC RESEARCH VISION OPHTHALMOLOGY INC, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000433203503334&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Conrad F; Bakaraju RC; Perera I; Kim E; Ehrmann K; Holden BA, 2014, 'Comparison of single vision, bifocal and multifocal contact lens power profiles obtained using two high resolution power mapping instruments', in INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ASSOC RESEARCH VISION OPHTHALMOLOGY INC, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000433205501243&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Chung J; Bakaraju RC; Fedtke C; Ehrmann K; Falk D; Ozkan J; Ho A; Holden BA, 2014, 'Horizontal and vertical peripheral refraction profiles with single-vision and multifocal contact lenses', in INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ASSOC RESEARCH VISION OPHTHALMOLOGY INC, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000433205501250&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Ehrmann K; Bakaraju RC; Chung J; Ozkan J; Ho A; Fedtke C; Falk D; Holden BA, 2014, 'Peripheral refraction and aberration profiles for single vision and multifocal contact lenses and the effect of accommodation', in INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ASSOC RESEARCH VISION OPHTHALMOLOGY INC, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000433203500130&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Kim E; Bakaraju RC; Perera I; Holden BA; Ehrmann K, 2014, 'Power profiles measured on NIMO TR1504 (Lambda-X): repeatability and effects of lens decentration for single vision, bifocal and multifocal contact lenses.', in INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ASSOC RESEARCH VISION OPHTHALMOLOGY INC, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000433205505093&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Chung J; Bakaraju R; Fedtke C; Ozkan J; Ehrmann K; Falk D; Ho A; Holden B, 2013, 'Accommodative Lag, Facility and Phoria with Multifocal Contact Lenses', in INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ASSOC RESEARCH VISION OPHTHALMOLOGY INC, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000436232900154&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Ozkan J; Bakaraju R; Fedtke C; Chung J; Ehrmann K; Ho A; Holden B, 2013, 'Short-term adaptation of accommodative lag, facility and phoria in myopes fitted with multifocal contact lenses', Seattle, Washington, USA, presented at Association for Research in Vision and Ophthalmology, Seattle, Washington, USA, 05 May 2013 - 09 May 2013

Bakaraju RC; Ehrmann K; Papas EB; Ho A, 2009, 'A theoretical design of gradient index multifocal contact lens for correcting presbyopia and an attempt to elicit its performance using ray tracing', in BioMEMS and Nanotechology II, Proceedings of SPIE, presented at Progress in Biomedical Optics and Imaging - SPIE

Kim ES; Ehrmann K; Uhlhorn S; Borja D; Parel J, 2009, 'Automated Analysis of OCT Images of the Crystalline Lens', in BioMEMS and Nanotechology II, Proceedings of SPIE, presented at Progress in Biomedical Optics and Imaging - SPIE

Ehrmann K; Falk D, 2009, 'Optical power mapping using paraxial laser scanning', in BioMEMS and Nanotechology II, Proceedings of SPIE, presented at Progress in Biomedical Optics and Imaging - SPIE

Bakaraju RC; Ehrmann K; Falk D; Papas EB; Ho A, 2009, 'Working sketch of an anatomically and optically equivalent physical model eye', in BioMEMS and Nanotechology II, Proceedings of SPIE, presented at Progress in Biomedical Optics and Imaging - SPIE

Ehrmann K; Conrad F; Papas EB; Ho A, 2006, 'Measurement of ocular parameters under various directions of gaze', in BioMEMS and Nanotechology II, Proceedings of SPIE, San Jose, California USA, presented at Photonics West - BiOS 2006, San Jose, California USA, 21 January 2006 - 26 January 2006

Ehrmann K; Conrad F; Papas EB; Ho A, 2006, 'Measurement of ocular parameters under various directions of gaze', in SPIE 2006: Photonics West, San Jose, California USA, pp. 1 - 1, presented at SPIE 2006: Photonics West, San Jose, California USA

Ehrmann K; Conrad F; Papas EB; Ho A, 2006, 'Normative ocular parameters for various angles of gaze', in Frank R (ed.), ARVO 2006 Annual Meeting, Fort Lauderdale, Florida, pp. 115 - 115, presented at ARVO 2006: Association for Research in Vision and Ophthalmology, Fort Lauderdale, Florida

Holden BA; Lazon De La Jara P; La Hood DL; Terry RL; Ehrmann K, 2006, 'Oxygen Supply to the Cornea with Silicone Hydrogel Contact Lenses', in Contact Lens and Anterior Eye, Stockton Press, Basingstoke, UK, pp. 197 - 197, presented at British Contact Lens Association Annual Clinical Conference (BCLA 2006), Birmingham, England

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