Monthly Archives: January 2013

Finite-Element model of corneal implanted with Intracorneal Ring Segments, published in IOVS


The corneal response to the implantation of Intracorneal Ring changes in normal and keratoconic is studied through Finite-element modeling. Refractive changes are predicted as a function of ICRS geometry (triangular, such as in Ferrara rings, or hexagonal, such as in Intacts), ICRS dimensions and optical zone. These results give insights into the mechanism of the ICRS and will lead toward more predictive results of ICRS surgery.

The study has been published today in IOVS: Kling and Marcos, “Finite-Element Modeling of Intrastromal Ring Segment Implantation into a Hyperelastic Cornea”, Investigative Ophthalmology and Visual Sience 2013, 54 881-889

Link to paper:


3-year Postdoctoral Advanced Fellowship in Biomedical Imaging @VioBio_Lab


The Visual Optics and Biophotonics Lab ( seeks candidates for a 3-year Advanced Fellowship Application in Biomedical Imaging to develop projects of excellence/innovation in the area of ocular imaging (OCT and Advanced Microscopy) and Vision Correction

The Advanced Fellowship

*The Advanced Fellowship is partially funded by the European Commission (FP7-PEOPLE-2011-COFUND, Marie Curie Action), Fundacion Madrid+d (Cofund ) and VIOBIO Laboratory Funds, and it is part of the Madrid-MIT M+Vision Consortium

* First year Fellowship: € 43,000 + € 2,300 as an academic stipend +€3,300 as travel funds
* Second + Third year contract: € 65,000 ( including Social Security obligations) + € 2,300 academic stipend + € 3,300 as travel  funds

* The successful applicant will work on development and applications of imaging techniques in the anterior segment of the eye, dynamic wavefront sensing or adaptive optics. Applications range from understanding the basic ocular mechanisms to the evaluation and new designs of alternatives for vision correction.

Full description of Fellowship Program:
* Fellowship Starting date: July 1, 2013

Eligible Candidates

* Eligible candidates are international or Spanish citizens that have not resided in Spain for more than one year in the previous three years.

* Must hold a PhD degree and an excellent background

* Experience in Biomedical Imaging, with strong motivation for multidisciplinary research in the field of ophthalmic and ocular biology applications

* Must be fluent in English

The Visual Optics and Biophotonics Lab

The Visual Optics and Biophotonics Lab, led by Prof. Susana Marcos,  provides a young and dynamic research environment. The laboratory is funded primarily by European grants (ERC Advanced Grant), national programs and holds excellent collaborative programs with top international laboratories, clinical institutes and industry. The Lab is part of the Spanish Visual Optics Network, EU OPAL Marie Curie ITN Research of Excellence, MIT M+Vision Consortium, among others. The Institute of Optics (CSIC) is the oldest research institute in Optics in Spain, and holds an excellent reputation of research in optics, particularly in Visual Optics. CSIC ( is the National Center for Research in Spain, and the most important multidisciplinary research facility in the country, and among the highest ranked in Europe.

Full information regarding VIOBIO Lab activities:

Application Process

* Applicants should send Expressions of Interest to the VIOBIO Lab Project Managment Unit at: before February 15 2013
and should include CV, research interests and names of three references,

* Pre-selected candidates will proceed with the full application procedure, which requires a cover letter, CV, a research proposal and responses to 3 essay questions, passport copy, academic transcripts, PhD certificate and residence certificate (last 3 years). Letters of Recommendations will be requested at this state
Application website:

* Final application deadline: February 25, 2013

Susana Marcos
Professor of Research
Head of Visual Optics and Biophotonics Lab

Experimental simulation of simultaneous vision, published in IOVS


A new instrument is presented that allows simulating visual experience under pure simultaneous vision (bifocal correction). The study demonstrates that lower additions (1-2 D) produce larger degradations in visual acuity than higher additions, and that this effect is optical in nature.

Link to paper:


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