Monthly Archives: August 2016

The Optical Society of America (OSA), and the Spanish Council for Scientific Research (CSIC) highlights our recent publication in Optica about the SimVis


Both the Optical Society of America (CSIC) and the Spanish Council for Scientific Research (CSIC) have selected our recent publication in Optica about the Simultaneous vision device for promotion to the media via news releases (links below). This has triggered international media coverage of our research about SimVis.


Press Release – Optical Society of America (OSA)

Press Release in Spanish – Spanish Council for Scientific Research (CSIC)

SimVis research at VioBio

2Eyes Vision

A portable simultaneous vision device simulating multifocal corrections, published in Optica (Optical Society of America).


Multifocal lenses are increasingly used solutions for presbyopia, the age-related loss of crystalline lens focus ability. These lenses work by the principle of simultaneous vision, superimposing focused and defocused images on the retina. Providing the experience of simultaneous vision to a patient before permanent implantation of a multifocal lens is a recognized unmet need to increase the patient’s confidence and optimize the lens selection. In this study we developed a hand-held, see-through multifocal vision simulator based on temporal multiplexing of a tunable lens. After calibration and validation of the device, we measured nine patients with three monofocal, two bifocal, and two trifocal simulated corrections. Visual performance and perceptual quality with multifocal corrections varied across patients. The simultaneous vision simulator proved a promising compact tool to study visual performance with multifocal corrections and to select the lens design best suited for each patient, alternative to costly and bulky adaptive optics based devices.

The study has been published in Optica, a high impact journal of the Optical Society of America.

Full reference:

Carlos Dorronsoro, Aiswaryah Radhakrishnan, José Ramón Alonso-Sanz, Daniel Pascual, Miriam Velasco-Ocana, Pablo Pérez Merino y Susana Marcos. Portable simultaneous vision device to simulate multifocal corrections. Optica. DOI: 10.1364/OPTICA.3.000918

Susana Marcos Keynotes The Optical Society’s Light the Future Program at Latin American Optics and Photonics


The Optical Society (OSA), the leading global professional association in optics and photonics will host the latest in its Light the Future speaker series with speaker Susana Marcos, Institute of Optics, CSIC, Madrid, Spain. The program will take place at the Latin America Optics and Photonics (LAOP), a premier international conference in Latin America promoting industry development in optics and photonics within Latin America, on Wednesday, 24 August 2016, 18:15 –19:00 COT in Medellín, Colombia.Marcos͛ presentation ͞An Eye Into the Future͟ will explore the advances in light-based optical technologies that are paving the way for better diagnosis and treatment of eye ailments such as Myopia and Presbyopia.

The Light the Future speaker series will tour eight international cities as part of The Optical Society͛s Centennial program, featuring visionaries, futurists and Nobel Prize winners discussing how science affects our lives every day.

Full OSA press release:

Click to access LAOP-LTF%20Media%20Advisory_080916.pdf


Simulation of angularly and radially segmented multifocal patterns in an adaptive optics simulator, published in Vision Research.



We evaluated, optically and psychophysically, the quality provided by multizone radial and angular segmented phase designs in 8 subjects using a custom-developed Adaptive Optics (AO) We found that 2-zone segmented designs (angular & radial) provided better performance for far and near vision, 3- and 4-zone segmented angular designs performed better for intermediate vision. AO-correction of natural aberrations of the subjects modified the response for the different subjects but general trends remained. 

The Adaptive Optics Visual Simulator developed in the current study allows evaluating vision with any multifocal solution, while controlling the natural aberrations of the subject and  allows a better understanding of optical and visual interactions in multifocal simultaneous vision corrections, and to investigate whether these interactions are driven by optical or by neural effects, These results are important to improve intraocular lens design and to select the optimal design for a patient.

Susana Marcos, candidate for President of the Optical Society of America.


Susana Marcos accepted the Optical Society nomination to run in the elections for OSA Vicepresident. Elections are now open until Sept 23, 2016, and OSA members can cast their votes.

Susana Marcos is the Director of the Visual Optics and Biophotonics Lab, IO-CSIC and past Director of the Institute of Optics (CSIC), and past  OSA Director-at-Large. In her statement, she “envisions OSA as an international and multidisciplinary, inclusive society, supportive of minorities, women, young scientists, experienced researchers, and entrepreneurs — building on the solid ground of over a century of leadership in optics, with a shining future ahead.”

Founded in 1916, The Optical Society is the leading professional association in optics and photonics, home to accomplished science, engineering, and business leaders from all over the world. Over the course of OSA’s nearly one hundred year history, 34 OSA members have been awarded a Nobel Prize in Physics, Chemistry or Physiology/Medicine.

You can read the candidates’ statement and bios in this link:

Voting instructions have been sent by email to members, and can also be found here


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