Dr. Brian Vohnsen Profile

Dr. Brian Vohnsen

SPIE Involvement:

Author

Area of Expertise:

Biomedical optics , Visual optics , Adaptive optics , Ophthalmology , Microscopy , Wavefront sensing

Websites:

Company Website

Proceedings Article | 6 August 2021 Presentation

Panel Discussion on Light in Nature

Katherine Creath, Vasudevan Lakshminarayanan, Lorian Schweikert, Joseph A. Shaw, Brian Vohnsen

Proceedings Volume 11833, 118330T (2021) https://doi.org/10.1117/12.2606913

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Proceedings Article | 1 August 2021 Presentation + Paper

The impact of aberrations in a 3D retinal model eye

B. Vohnsen

Proceedings Volume 11814, 1181405 (2021) https://doi.org/10.1117/12.2594117

KEYWORDS: Wavefronts, Retina, Eye, Point spread functions, 3D modeling, Visibility, Eye models, Cones, Zernike polynomials, Apodization

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Proceedings Article | 26 August 2020 Poster

Corneal topography by specular reflection: Modal and zonal methods for surface reconstruction

Martin Rodriguez Rodriguez, Dulce Maria Gonzalez Utrera, José Rufino Díaz-Uribe, Brian Vohnsen

Proceedings Volume 11487, 114871N (2020) https://doi.org/10.1117/12.2568639

KEYWORDS: Specular reflections, Spherical lenses, Optical spheres, Refractor telescopes, Eye, Prisms, Reflectivity, Computer simulations, Calibration

Proceedings Article | 21 August 2020 Presentation + Paper

Monocular foveal, parafoveal, and perifoveal accommodation response to random defocus step changes

N. Sharmin, B. Vohnsen

Proceedings Volume 11481, 1148105 (2020) https://doi.org/10.1117/12.2567419

KEYWORDS: Eye, Retina, Wavefront sensors, Monochromatic aberrations, Cones, Visualization, Iris, Computing systems, Macula

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Proceedings Article | 21 August 2020 Presentation + Paper

Understanding the role of retinal cone photoreceptors in color perception, blur, and emmetropization

B. Vohnsen

Proceedings Volume 11481, 1148107 (2020) https://doi.org/10.1117/12.2567037

KEYWORDS: Cones, Eye, Visualization, Retina, Rods, Color vision, Waveguides, Visual optics, Image segmentation, Human vision and color perception

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SPIE Journal Paper | 12 February 2015 Open Access

Simultaneous drift, microsaccades, and ocular microtremor measurement from a single noncontact far-field optical sensor

James Ryle, Brian Vohnsen, John Sheridan

JBO, Vol. 20, Issue 02, 027004, (February 2015) https://doi.org/10.1117/12.10.1117/1.JBO.20.2.027004

KEYWORDS: Eye, Sensors, Imaging systems, Motion measurement, Head, Light sources, Sclera, Spatial resolution, Image sensors, Image resolution

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SPIE Journal Paper | 24 September 2014 Open Access

Closed-loop adaptive optics using a spatial light modulator for sensing and compensating of optical aberrations in ophthalmic applications

Vyas Akondi, Md. Atikur Rahman Jewel, Brian Vohnsen

JBO, Vol. 19, Issue 09, 096014, (September 2014) https://doi.org/10.1117/12.10.1117/1.JBO.19.9.096014

KEYWORDS: Adaptive optics, Spatial light modulators, Wavefronts, Eye, Wavefront sensors, Monochromatic aberrations, Microsoft Foundation Class Library, Optical aberrations, Error analysis, Spherical lenses

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Proceedings Article | 18 February 2010 Paper

Novel high-sensitivity Z-scan technique based on a Hartmann-Shack wavefront sensor

Diego Rativa, Brian Vohnsen, Anderson S. Gomes, Renato de Araujo

Proceedings Volume 7582, 758218 (2010) https://doi.org/10.1117/12.841013

KEYWORDS: Absorption, Wavefronts, Wavefront sensors, Refraction, Nonlinear optics, Wavefront distortions, Transmittance, Statistical analysis, Adaptive optics, Sensors

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Proceedings Article | 9 July 2003 Paper

Confocal scanning laser ophthalmoscope with adaptive optical wavefront correction

Brian Vohnsen, Ignacio Iglesias, Pablo Artal

Proceedings Volume 4964, (2003) https://doi.org/10.1117/12.477979

KEYWORDS: Eye, Adaptive optics, Confocal microscopy, Imaging systems, Scanners, Wavefronts, Retina, Scanning laser ophthalmoscopes, Electrodes, Optical calibration

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Showing 5 of 9 publications

Conference Committee Involvement (1)

Light in Nature IX

23 August 2022 | San Diego, California, United States

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