Search Results - "Ehrmann, Klaus"

Visual performance of single vision and multifocal contact lenses in non-presbyopic myopic eyes by Fedtke, Cathleen, Bakaraju, Ravi C, Ehrmann, Klaus, Chung, Jiyoon, Thomas, Varghese, Holden, Brien A

“…Highlights • Single vision lens design differences had no impact on subjective vision. • Visual acuity was better with lenses having increased negative…”
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Extended depth of focus contact lenses vs. two commercial multifocals: Part 1. Optical performance evaluation via computed through-focus retinal image quality metrics by Bakaraju, Ravi C, Ehrmann, Klaus, Ho, Arthur

“…Abstract Purpose To compare the computed optical performance of prototype lenses designed using deliberate manipulation of higher-order spherical aberrations…”
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Carboxymethylcellulose Binds to Human Corneal Epithelial Cells and Is a Modulator of Corneal Epithelial Wound Healing by Garrett, Qian, Simmons, Peter A, Xu, Shunjiang, Vehige, Joseph, Zhao, Zhenjun, Ehrmann, Klaus, Willcox, Mark

“…In this study, the ability of carboxymethylcellulose (CMC), used in artificial tear formulations, to interact with corneal-epithelial-cells (HCECs) and…”
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Short-Term Visual Performance of Novel Extended Depth-of-Focus Contact Lenses by Tilia, Daniel, Bakaraju, Ravi C, Chung, Jiyoon, Sha, Jennifer, Delaney, Shona, Munro, Anna, Thomas, Varghese, Ehrmann, Klaus, Holden, Brien A

“…PURPOSETo compare the objective and subjective visual performance of a novel contact lens which extends depth of focus by deliberate manipulation of…”
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Reliability of power profiles measured on NIMO TR1504 (Lambda-X) and effects of lens decentration for single vision, bifocal and multifocal contact lenses by Kim, Eon, Bakaraju, Ravi C, Ehrmann, Klaus

“…Abstract Purpose To evaluate the repeatability of power profiles measured on NIMO TR1504 (Lambda-X, Belgium) and investigate the effects of lens decentration…”
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A review of peripheral refraction techniques by Fedtke, Cathleen, Ehrmann, Klaus, Holden, Brien A

“…The recently discovered link between myopia development and peripheral refraction has triggered a stream of clinical and animal investigations to confirm the…”
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Comparing the relative peripheral refraction effect of single vision and multifocal contact lenses measured using an autorefractor and an aberrometer: A pilot study by Bakaraju, Ravi C, Fedtke, Cathleen, Ehrmann, Klaus, Ho, Arthur

“…Abstract Purpose To compare the contributions of single vision (SVCL) and multifocal contact lenses (MFCL) to the relative peripheral refraction (RPR) profiles…”
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Peripheral refraction and higher-order aberrations with cycloplegia and fogging lenses using the BHVI-EyeMapper by Bakaraju, Ravi Chandra, Fedtke, Cathleen, Ehrmann, Klaus, Falk, Darrin, Thomas, Varghese, Holden, Brien Anthony

“…Abstract Purpose To determine if a fogging lens ameliorates accommodative effects driven by the closed-view design of the BHVI-EyeMapper (EM) instrument. We…”
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Short-term comparison between extended depth-of-focus prototype contact lenses and a commercially-available center-near multifocal by Tilia, Daniel, Munro, Anna, Chung, Jiyoon, Sha, Jennifer, Delaney, Shona, Kho, Danny, Thomas, Varghese, Ehrmann, Klaus, Bakaraju, Ravi Chandra

“…Abstract Purpose To compare the visual performance of prototype contact lenses which extend depth-of-focus (EDOF) by deliberate manipulation of multiple…”
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Chromatic dispersion of soft contact lens materials by Spychala, Beate, Ehrmann, Klaus

“…To investigate and evaluate the chromatic dispersion of various hydrogel and silicon hydrogel contact lens materials. Eighteen different soft contact lens…”
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Power profiles of single vision soft contact lenses by Wagner, Sandra, Conrad, Fabian, PhD, Bakaraju, Ravi C, BOptom PhD FAAO, Fedtke, Cathleen, Dipl.Ing PhD FAAO, Ehrmann, Klaus, MEng PhD

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Depth-of-Focus and its Association with the Spherical Aberration Sign. A Ray-Tracing Analysis by Bakaraju, Ravi C, Ehrmann, Klaus, Papas, Eric B, Ho, Arthur

“…Abstract Purpose To investigate the relationship between the sign of spherical aberration (SA) and the corresponding depth-of-focus (DoF) values around best…”
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Refractive index of soft contact lens materials measured in packaging solution and standard phosphate buffered saline and the effect on back vertex power calculation by Kim, Eon, Ehrmann, Klaus

“…To measure the refractive index (RI) of commonly available soft contact lens (CL) materials, their packaging solutions and compare to the manufacturers’…”
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Mechanical Properties of Contact Lens Materials by Kim, Eon, Saha, Mou, Ehrmann, Klaus

“…OBJECTIVES:To evaluate the mechanical properties of commonly available soft contact lens materials and compare results using custom-built MicroTensometer…”
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Do Peripheral Refraction and Aberration Profiles Vary with the Type of Myopia? - An Illustration Using a Ray-Tracing Approach by Bakaraju, Ravi C, Ehrmann, Klaus, Papas, Eric B, Ho, Arthur

“…Abstract Purpose Myopia is considered to be the most common refractive error occurring in children and young adults, around the world. Motivated to elucidate…”
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Power Profiles of Commercial Multifocal Soft Contact Lenses by Kim, Eon, Bakaraju, Ravi C, Ehrmann, Klaus

“…PURPOSETo evaluate the optical power profiles of commercially available soft multifocal contact lenses and compare their optical designs. METHODSThe power…”
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Myopia control with novel central and peripheral plus contact lenses and extended depth of focus contact lenses: 2 year results from a randomised clinical trial by Sankaridurg, Padmaja, Bakaraju, Ravi C, Naduvilath, Thomas, Chen, Xiang, Weng, Rebecca, Tilia, Daniel, Xu, Pauline, Li, Wayne, Conrad, Fabian, Smith, Earl L, Ehrmann, Klaus

“…Purpose We aimed to determine myopia control efficacy with novel contact lenses (CL) that (1) reduced both central and peripheral defocus, and (2) provided…”
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Refractive power profiles of commercially available soft multifocal contact lenses for myopia control by Dang, Rebecca M, Ehrmann, Klaus, Jalbert, Isabelle, Hui, Alex, Kang, Pauline

“…Lens power profiles can provide valuable insights on the imposed optical defocus and visual experience of contact lens wearers, especially in the context of…”
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Corneal hypersensitivity to cold stimuli in symptomatic computer users by Talens-Estarelles, Cristian, Golebiowski, Blanka, Ehrmann, Klaus, García-Lázaro, Santiago, Cerviño, Alejandro, Stapleton, Fiona

“…SIGNIFICANCE Prolonged computer use may result in repeated stimulation of the ocular surface due to ocular dryness, potentially leading to alterations in its…”
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Visual performance of optical films utilizing Spatio-Temporal Optical Phase technology by Fedtke, Cathleen, Tilia, Daniel, Ehrmann, Klaus, Diec, Jennie, Lahav-Yacouel, Karen, Falk, Darrin, Bakaraju, Ravi C

“…Spatio-Temporal Optical Phase technology utilizes film pairs containing optical elements applied to standard single-vision spectacle lenses. This technology…”
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