By Dr Klaus Ehrmann

Journal articles

Wagner S; Conrad F; Bakaraju RC; Fedtke C; Ehrmann K; Holden BA, 2015, 'Power profiles of single vision and multifocal soft contact lenses', Contact Lens and Anterior Eye, 38, pp. 2 - 14, http://dx.doi.org/10.1016/j.clae.2014.07.008

Sha J; Bakaraju RC; Tilia D; Chung J; Delaney S; Munro A; Ehrmann K; Thomas V; Holden BA, 2015, 'Short-term visual performance of soft multifocal contact lenses for presbyopia', Arquivos Brasileiros De Oftalmologia, 79, pp. 73 - 77, http://dx.doi.org/10.5935/0004-2749.20160023

Nankivil D; Heilman BM; Durkee H; Manns F; Ehrmann K; Kelly S; Arrieta-Quintero E; Parel JM, 2015, 'The zonules selectively alter the shape of the lens during accommodation based on the location of their anchorage points', Investigative Ophthalmology and Visual Science, 56, pp. 1751 - 1760, http://dx.doi.org/10.1167/iovs.14-16082

Fedtke C; Bakaraju RC; Ehrmann K; Chung J; Thomas V; Holden BA, 2014, 'Visual performance of single vision and multifocal contact lenses in non-presbyopic myopic eyes', Contact Lens and Anterior Eye, http://dx.doi.org/10.1016/j.clae.2015.07.005

Fedtke C; Ehrmann K; Falk D; Bakaraju RC; Holden BA, 2014, 'The BHVI-eyemapper: Peripheral refraction and aberration profiles', Optometry and Vision Science, 91, pp. 1199 - 1207, http://dx.doi.org/10.1097/OPX.0000000000000364

De La Jara PL; Sankaridurg P; Ehrmann K; Holden BA, 2014, 'Influence of contact lens power profile on peripheral refractive error', Optometry and Vision Science, 91, pp. 642 - 649, http://dx.doi.org/10.1097/OPX.0000000000000273

Rohit A; Ehrmann K; Naduvilath T; Willcox M; Stapleton F, 2014, 'Validating a new device for measuring tear evaporation rates', Ophthalmic and Physiological Optics, 34, pp. 53 - 62, http://dx.doi.org/10.1111/opo.12096

Wagner S; Conrad F; Bakaraju RC; Fedtke C; Ehrmann K, 2013, 'Power profiles of single vision soft contact lenses', Contact Lens and Anterior Eye, 36, pp. e33 - e33, http://dx.doi.org/10.1016/j.clae.2013.08.115

Kim E; Ehrmann K, 2012, 'Assessment of accuracy and repeatability of anterior segment optical coherence tomography and reproducibility of measurements using a customised software program', Clinical and Experimental Optometry, 95, pp. 432 - 441, http://dx.doi.org/10.1111/j.1444-0938.2012.00724.x

Takatori S; Lazon P; Holden BA; Ehrmann K; Ho A; Radke C, 2012, 'Author Response: In Vivo Oxygen Uptake into the Human Cornea', Investigative Ophthalmology and Visual Science, 53, pp. 6829, http://dx.doi.org/10.1167/iovs.12-10901

Takatori S; Lazon P; Holden BA; Ehrmann K; Ho A; Radke C, 2012, 'In vivo oxygen uptake into the human cornea', Investigative Ophthalmology and Visual Science, 53, pp. 6331 - 6337, http://dx.doi.org/10.1167/iovs.12-10059

Bakaraju RC; Ehrmann K; Falk D; Ho A; Papas EB, 2012, 'Optical performance of multifocal soft contact lenses via a single-pass method', Optometry and Vision Science, 89, pp. 1107 - 1118, http://dx.doi.org/10.1097/OPX.0b013e318264f3e9

Ozkan J; de la Jara PL; Ehrmann K; Lally J; Willcox MD, 2011, '22 Effect of edge shape and lens geometrychanges on conjunctival staining during daily wear', Contact Lens and Anterior Eye, 34, pp. S21 - S21, http://dx.doi.org/10.1016/s1367-0484(11)60101-x

Kim E; Ehrmann K; Uhlhorn S; Borja D; Arrieta-Quintero E; Parela J, 2011, 'Semiautomated analysis of optical coherence tomography crystalline lens images under simulated accommodation', Journal of Biomedical Optics, 16, pp. Article number: 056003, http://dx.doi.org/10.1117/1.3574613

Conrad F; Ehrmann K; Choo JD; Holden BA, 2010, 'Finite Element Modeling of Inverted (Inside Out) Soft Contact Lenses', Journal of Medical Devices, 4, pp. 024501-1 - 024501-6, http://dx.doi.org/10.1115/1.4001519

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 E; 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, http://dx.doi.org/10.1097/OPX.0b013e318198959e

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

Ehrmann K; Saillen N; Vincent F; Stettler M; Jordan M; Wurm FM; Besse P-A; Popovic R, 2007, 'Microfabricated solenoids and Helmholtz coils for NMR spectroscopy of mammalian cells', Lab on a Chip, 7, pp. 373 - 380, http://dx.doi.org/10.1039/b614044k

Ehrmann K; Pataky K; Stettler M; Wurm FM; Brugger J; Besse P-A; Popovic R, 2007, 'NMR spectroscopy and perfusion of mammalian cells using surface microprobes', Lab on a Chip, 7, pp. 381 - 383, http://dx.doi.org/10.1039/b613240e

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

Stapleton F; 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://dx.doi.org/10.1136/bjo.2004.044024

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

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

Bakaraju RC; Bandela P; Falk D; Fedtke C; Ehrmann K, 2025, 'Evaluation of single-vision spectacles designed with opaque non-refractive features using a biomimetic virtual retina', in INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ASSOC RESEARCH VISION OPHTHALMOLOGY INC

Tilia D; Diec J; Sha J; Lahav-Yacouel K; Ehrmann K; Fedtke C; Bakaraju R, 2025, 'Visual Performance of spectacle films utilizing ARREST® technology for myopia management', in INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ASSOC RESEARCH VISION OPHTHALMOLOGY INC

Lahav-Yacouel K; Falk D; Dinh N; Fedtke C; Ehrmann K; Bakaraju R, 2023, 'Optical modelling and Model Eye analysis of optical films with ST OP^® technology', in INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ASSOC RESEARCH VISION OPHTHALMOLOGY INC, LA, New Orleans, presented at Annual Meeting of the Association-for-Research-in-Vision-and-Ophthalmology (ARVO), LA, New Orleans, 23 April 2023 - 27 April 2023

Fedtke C; Tilia D; Ehrmann K; Diec J; Lahav-Yacouel K; Falk D; Bakaraju R, 2023, 'rVisual performance of optical films with STOP^® technology', in INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ASSOC RESEARCH VISION OPHTHALMOLOGY INC, LA, New Orleans, presented at Annual Meeting of the Association-for-Research-in-Vision-and-Ophthalmology (ARVO), LA, New Orleans, 23 April 2023 - 27 April 2023

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

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

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