Author Archives: vioBioLab

VioBio Lab participates in the International Day of Women and Girls in Science

Post Mujeres

The VioBio Lab (Instituto de Óptica, CSIC) has joined the celebration of the International Day of Women and Girls in Science (commemorated on February 11th), which seeks to make visible the work of women scientists and promote new scientific vocations in girls.

Gadea Ciencia Foundation organized the round table “Women and Science” with Prof, Susana Marcos, María Blasco and Clara Benedí as invited speakers. During the debate they pointed the importance of a better education from an early age to change stereotypes and the need to normalize the presence of women in certain areas and careers. More information about the event in the next links:

Susana Marcos also attended the opening event of Women and Girls in Science’s Week organized by the Government of the Principality of Asturias and CSIC. The event also included the presentation of The periodic table of women scientists.

With the objective of showing feminine references in science, during two weeks CSIC has organized more than 200 activities throughout Spain. One of the multiple initiatives to celebrate this day, was to release videos of top researchers talking about their careers and why they became scientists. Here is the video featuring Susana Marcos and Carlos Dorronsoro. Finally, visitors to CSIC campus in Madrid will find new banners showcasting prestigious women scientists, including Susana Marcos. More information on all these initiatives can be found in the next article.


Extraordinary impact of Press Conference on SimVis on television and media

rueda de prensa

CSIC and VioBio Lab have presented the validation and launch of SimVis, a simultaneous vision simulator, in a press conference that took place yesterday at CSIC (Calle Serrano 113, Madrid). 

For the first time, patients who undergo cataract surgery will be able to experience how they will improve their vision after the surgery. Thanks to this portable simulator, developed by researchers from the VioBio Lab (CSIC), patients and surgeons have the possibility of seeing the effects of an intraocular multifocal lens realistically before the implantation. Details on the validation of this new device are published in the latest issue of Scientific Reports (Nature).

The technology has led to four patents (one of them received the Best Patent of the Year Award from the Madrid+d Foundation) licensed to 2EyesVision SL, a spin-off company from CSIC, funded, among others, by several of the researchers involved in the development of SimVis. 

“Visual simulators are an ideal technique to provide patients with a realistic experience of multifocality before the implantation of an intraocular lens. In addition, since the device has been reduced in size and has a more practical design than those currently in the market, the benefits multiply, ” Prof. Marcos concluded during the press conference. 

More information about the press conference in the following links: 

First validation of the simulation of commercial intraocular lenses by SimVis, published in Scientific Reports


Multifocal intraocular lenses are used to provide patients to functional vision at various distances. In a recent paper published in Scientific Reports we demostrated the equivalency of through focus visual acuity with real lenses (a bifocal refractive IOL and a trifocal diffractive IOL) and the same lenses simulated in a Spatial Light Modulator and SimVis technology (temporal multiplexing).

Full citation: Maria Vinas, Clara Benedi-Garcia, Sara Aissati, Daniel Pascual, Vyas Akondi, Carlos Dorronsoro & Susana Marcos. Visual simulators replicate vision with multifocal lenses. Scientific Reports 9, 1539 (2019).

Full article here.

CSIC Press release here.

Susana Marcos awarded eWoman Salamanca


Susana Marcos was awarded the Prize eWoman Salamanca for her professional career, in an event sponsored by CaixaBank, Prensa Iberica and La Gaceta de Salamanca. The event promoted the talent of women in technology.

Here you can find more information about the award and the ceremony


Dynamic characterization and control of opto-tunable lenses, published in Optics Express


Tunable lenses are increasingly popular in applications including microscopy, optical coherence tomography, computer vision, quality control, and presbyopic corrections, some of them requiring an accurate control of the optical power of the lens in response to a time-dependent input waveform. In a paper recently published in Optics Express, we present a fast focimeter (3.8 KHz) to characterize the dynamic response of tunable lenses. We demonstrated the compensation of the temporal distortions in the transient responses of optotunable lenses, broadening their potential in high-speed applications. This approach used in the Sim+Vis technology, using a temporal multiplexing approach to simulate multifocal lenses used to correct for presbyopia.

Full reference: Carlos Dorronsoro, Xoana Barcala, Enrique Gambra, Vyas Akondi, Lucie Sawides, Yassine Marrakchi, Victor Rodriguez-Lopez, Clara Benedi-Garcia, Maria Vinas, Eduardo Lage, and Susana Marcos, “Tunable lenses: dynamic characterization and fine-tuned control for high-speed applications,” Opt. Express 27, 2085-2100 (2019).

Full article here

Oferta de empleo: Investigador Predoctoral, Ciencias o Ingeniería

VioBio Lab busca candidatos para solicitar un contrato de Investigador Predoctoral bajo la supervisión del Dr. Carlos Dorronsoro.
El candidato se integrará en un grupo de trabajo multidisciplinar para desarrollar las siguientes tareas:
(1) Desarrollo y puesta a punto de prototipos, instrumentos y dispositivos ópticos.
(2) Realización de experimentos en observadores y pacientes sobre aspectos físicos y perceptuales de la visión.
(3) Desarrollo de nuevos métodos para la evaluación de la visión y prescripción de correcciones oftálmicas para uso en clínica.
Duración del contrato: 12 meses
Fecha prevista de inicio: 1 abril 2019
Salario: 19.098,55€ brutos/año
Los interesados pueden ponerse en contacto Nohelia Morales (nohelia.morales@io.cfmac.csic) para comunicar su interés y/o pedir más detalles sobre el procedimiento o sobre el contenido del contrato. El plazo límite para la presentación de solicitudes telemáticas es el 28 enero 2019.

Oferta completa aquí: oferta pre (1)

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New in the lab: Carmen Lago


We welcome Carmen Lago (BSc in Optics & Optometry, Universidad de Murcia) who is joining VioBio Lab (CSIC) and spin-off company 2EyesVision under an Industrial Doctorate Program funded by Madrid Regional Government. Carmen holds a MSc in Optometry an Vision Sciences by Universidad Politécnica de Cataluña and MSc in Photonics and laser technologies by Universidad de Vigo. She has an extended experience in clinical practice (working in hospitals and eye clinics). She performed an internship and master thesis in SCHWIND-Eye-Tech Solutions (Germany), where she trained in excimer laser for refractive surgery; and she conducted research at LOUM (Unversidad de Murcia) on adaptive optics visual simulators.

New in the lab: Jesús Palací


We welcome Jesús Palací, joining VioBio Lab from spin-off company 2EyesVision, where he will work in the context of the H2020 Innovation Action IMCUSTOMEYE, in the development of new OCT-based diagnostic tools in ophthalmology. 

Jesús obtained a PhD in Telecommunication from Universitat Politècnica de València. He gained experience in the design and development of photonic systems working for start-up companies in the telecom and medtech fields. His current interests include OCT technology and its application.

Job Offer: Predoctoral position in VioBio Lab – soon to be published

Captura IO

CSIC will open very soon (expected date January 2019) a call for proposal for predoctoral positions in the framework of Sistema de Garantía Juvenil.

VioBio lab will host one predoctoral researcher to prepare and develop optical instruments and prototypes, among other multidisciplinary tasks in the field of physics, ophthalmology and optical sciences.

The duration of the contract will be one year (with possible extension).

Interested candidates with backgrounds in Physics, Optics, Telecommunications, Telematics, Telemedicine, Biomedical Engineering, Electronic, Industrial and Informatics Engineering, Industrial Design and Industrial Technologies and Mathematics are encouraged to visit the CSIC website where the official call will be published: and to send a cover letter and CV to Nohelia Morales (

Nicolas Alejandre defends PhD Thesis on corneal changes following ICRS implantation in keratoconus patients

Tesis Nico

Nicolas Alejandre MD obtained a PhD with honors with his thesis entitled “Cambios Corneales tras la inserción de segmentos de anillos intraestromales en pacientes con queratocono”, at the School of Medicine, Universidad Autónoma de Madrid, supervised by Susana Marcos, PhD (VioBio Lab, Instituto de Optica, CSIC) and Ignacio Jimenez-Alfaro (Fundación Jimenez Díaz and UAM). The work is part of long-term collaborative agreements (Unidad Asociada) between the FJD Opthalmology Service and VioBio Lab. 

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