Bausch + Lomb - Aliso Viejo, CA since May 2013
Principal optical engineer
Novartis - Fort Worth, TX Jun 2012 - May 2013
Expert modeler (Modeling & Simulation group)
Alcon Laboratories, Inc. Nov 2007 - May 2012
Principal Scientist (Optics and vision research)
Alcon Laboratories, Inc. Aug 2004 - Nov 2007
Senior Scientist
University of Houston - Houston, Texas Area 2002 - 2004
Post doctoral fellow
Education:
Indian Institute of Astrophysics 1992 - 1999
Ph.D, Physics
The American College, Madurai 1987 - 1992
BSc and MSc, Physics
Skills:
Optics R&D Image Processing Physics Medical Devices Matlab Simulations Labview Biomedical Engineering Fda Zemax Mathematical Modeling Science Clinical Research Design of Experiments Validation Laser Digital Imaging Spectroscopy Clinical Trials Metrology Characterization Data Modeling Data Analysis Modeling Algorithms Optical Engineering Sensors Interferometry R Experimentation Microscopy Signal Processing Mathematica Optoelectronics Laser Physics Biomaterials Nanotechnology Research and Development Confocal Microscopy Image Analysis Numerical Analysis Bayesian Image Manipulation Data Mining Ni Labview Six Sigma Minitab Statistics
Bausch and Lomb Irvine, CA May 2013 to Apr 2014 Principal Engineer (Device modeling)Modeling and Simulation Team Fort Worth, TX 2004 to 2013 Expert Modeler
Education:
Indian Institute of Astrophysics Bangalore, Karnataka 2000 PhD in PhysicsThe American College Madurai, Tamil Nadu 1990 to 1992 BSc in Physics
Skills:
Certified Green belt Lean Six Sigma, UC Irvine
Us Patents
Iol With Varying Correction Of Chromatic Aberration
Xiaoxiao Zhang - Fort Worth TX, US Costin Eugene Curatu - Crowley TX, US Krishnakumar Venkateswaran - Burleson TX, US Daniel Robert Carson - Fort Worth TX, US Mutlu Karakelle - Fort Worth TX, US Xin Hong - Fort Worth TX, US Yueai Liu - Fort Worth TX, US
International Classification:
A61F 2/16 G02C 7/10
US Classification:
623 631, 351163, 351177
Abstract:
An ophthalmic lens includes an optical filter operable to filter out at least visible light having a wavelength less than 450 nm. The lens also includes a first diffractive structure adapted to produce a focus for visible light in a first wavelength range above 550 nm and to reduce longitudinal chromatic aberration to less than one diopter for incoming visible light in the first wavelength range. The lens also includes a second diffractive structure outside the first diffractive structure in a radial direction and adapted to produce a focus for visible light in a second wavelength range between 450 nm and 550 nm. The second diffractive structure is also adapted to reduce longitudinal chromatic aberration for incoming visible light in the second wavelength range to less than one diopter while allowing longitudinal chromatic aberration in the first wavelength range in an amount greater than the first diffractive structure.
Accommodative Iol - Refractive Index Change Through Change In Polarizability Of A Medium
Novartis AG - , US Krishnakumar Venkateswaran - Burleson TX, US
Assignee:
Novartis AG - Fort Worth TX
International Classification:
A61F 2/16
US Classification:
623 622, 623 637
Abstract:
In one aspect, an accommodative intraocular lens (IOL) is disclosed that includes an optic having at least a portion formed of a polarizable and/or and electro-active material. Once implanted in a subject's eye, a change in the index of refraction of the polarizable and/or electro-active portion in response to forces applied to the optic via the eye's ciliary muscle can cause a change in the optical power of the optic, thereby allowing accommodation.
Diffractive Multifocal Intraocular Lens With Modified Central Distance Zone
Michael J. Simpson - Arlington TX, US Krishnakumar Venkateswaran - Burleson TX, US
International Classification:
A61F 2/16
US Classification:
623 624
Abstract:
The present invention generally provides multifocal ophthalmic lenses, e.g., multifocal intraocular lenses, that employ a central refractive region for providing a refractive focusing power and a diffractive region for providing diffractive focusing powers. The refractive focusing power provided by the lens's central region corresponds to a far-focusing power that is substantially equal to one of the diffractive focusing powers while the other diffractive power corresponds to a near-focusing power. The far-focusing power can be enhanced by changes to the phase of the central refractive region and/or changes to the curvature of the central refractive region.