Monthly Archives: August 2015

VioBio Lab presents 9 talks at the European Society of Cataract and Refractive Surgery and satellite meetings in Barcelona

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Thursday, September 3

10:00 – 11:00
Susana Marcos’s invited talk at the Corvis Research Meeting. – Barcelona,  España Este evento tiene notificaciones.

Friday, September 4

08:45 – 08:55
“Measurement accommodation and endpoints of presbyopic correction”, moderated by Susana Marcos – Barcelona,  España Este evento tiene notificaciones.
08:55 – 09:35
“Quantitative OCT for 3-D biometry and measuring accommodation”, by Susana Marcos – Barcelona,  España Este evento tiene notificaciones.
09:35 – 09:45
“Adaptive optics simulations of novel presbyopic corrections”, by Susana Marcos – Barcelona,  España Este evento tiene notificaciones.
09:45 – 10:45
“Simultaneous Vision simulator for predicting vision with multifocal corrections”, by Susana Marcos – Barcelona,  España Este evento tiene notificaciones.
19:00 – 20:00
Presentation of Simultaneous Vision Simulator at Renaissance (by invitation) – Barcelona (Fira), España Este evento tiene notificaciones.

Saturday, September 5

16:06 – 16:12
“In vivo chromatic aberration in patients bilaterally implanted with same design hydrophobic and hydrophilic IOLs”, Presentation by Susana Marcos. – Barcelona,  España Este evento tiene notificaciones.
16:50 – 17:05
“The impact of astigmatism on visual function”, Invited presentation by Susana Marcos. – Barcelona,  España Este evento tiene notificaciones.

Sunday, September 6

08:30 – 09:00
“Aberrations of the optical system”, Invited presentation by Susana Marcos at Workshop on Visual Optics. –  Barcelona, España Este evento tiene notificaciones.
14:30 – 16:30
“Aberration induction in surgery in presbyopia: benefits and detriments to visual function in corneal refractive surgery ” Invited presentation by Susana Marcos at IC53. – Barcelona,  España Este evento tiene notificaciones.

Tuesday, September 8

15:25 – 15:40
“Simulating multifocality with a portable simultaneous vision instrument” Presbyopia Workshop –  Barcelona, España Este evento tiene notificaciones.

 

 

 

VioBio Lab presents 7 talks at Spanish National Meeting of Optics (RNO)

RNO

VioBio_Lab will be highly represented in this year’s edition of Reunion Nacional de Optica, kicking off in Salamanca in Late August:

 

Monday, August 31

12:15 – 14:00
RNO-J. “Cómo crear un spin-off y no morir en el intento”. Dr. Carlos Dorronsoro – Salamanca,  España Este evento tiene notificaciones.
18:30 – 19:30
RNO-J. “¿Cómo funcionan nuestras gafas?”. Dr. Sergio Barbero. – Salamanca,  España Este evento tiene notificaciones.

Tuesday, September 1

Poster sessions
“Curvatura geodésica en superficies ópticas. Sergio Barbero,  – Salamanca,  España Este evento tiene notificaciones.

Wednesday, September 2

10:10 – 10:35
RNO-Dia de la Luz. “Visión con correcciones de presbicia multifocales simuladas con un dispositivo miniaturizado de visión simultánea”. Carlos Dorronsoro. – Salamanca, España Este evento tiene notificaciones.
12:30 – 12:50
RNO-Dia de la Luz. “Custom computer eye model based on OCT”.Eduardo Martínez-Enríquez – Salamanca, España Este evento tiene notificaciones.
20:00 – 21:00
RNO-Dia de la Luz, “Luz y Vision: entendiendo y corrigiendo la presbicia”. Susana Marcos. – Casino de Salamanca Este evento tiene notificaciones.

Thursday, September 3

 10:10 – 10:35  Interpretación geométrica del emborronamiento dióptrico y la magnificación en lentes oftálmicas, Sergio Barbero – Salamanca, España
11:00 – 11:25
RNO-Dia de la Luz. “Testing vision with angular and radial multi-zone multifocal designs using Adaptive Optics”. María Viñas. – Salamanca, España Este evento tiene notificaciones.
11:50 – 12:10
RNO-Dia de la Luz. “Topografía del cristalino del ojo en función de la acomodación mediante OCT 3-dimensional cuantitativo”. Miriam Velasco-Ocana. – Salamanca,  España Este evento tiene notificaciones.

 

Carlos Dorronsoro will present “How to create a company and not die in the attempt” at  Area Joven.

 

Link to program: http://rno11.usal.es/images/stories/web/documentos/programa_extracto.pdf

New in the lab: Hrebesh Shubash

Hrebesh

We welcome Dr. Hrebesh Shubash, joining @VioBio_Lab as a senior investigator in the area of optical coherence tomography. Dr. Hrebesh gained his Ph.D. in Biomedical Optics form the Human Sensing and Functional Sensor Engineering Division of Yamagata University, Japan in 2008. His research interests are focused on the development and application of OCT based novel high-resolution optical imaging methods for disease diagnosis. He is also actively involved in developing a  compact and cost-effective OCT platform for next generation personal & point of care applications. He has authored more than 80 peer-reviewed publications and conference proceedings and chapters in 3 textbooks on Biomedical Optics

A revolutionary technique to engage IOLs to the capsular bag based on photobonding, published in IOVS

IconForWeb_Photobonding

The study presents a new paradigm for engaging an intraocular lens to the lens capsular bag, based on a photobobonding technique. Anchoring the haptics to the capsular bag is essential for the operation of accommodating of IOLs. The study demonstrates the possibility of achieving a strong bobding between a polymer material of standard use in IOLs with rabbit capsular bag. Photobonding was activated by Rose Bengal and photinitated by green laser light. The load producing bonding breakage was at least one order of magnitude above the forces available from the ciliary muscle. The study is a result of a collaborative effort between VioBio Lab and Wellman Center of Photomedicine (MGH/Harvard).

Full paper: Susana Marcos; Nicolás Alejandre; Jorge Lamela; Carlos Dorronsoro; Irene E. Kochevar. Toward New Engagement Paradigms For Intraocular Lenses: Light-Initiated Bonding of Capsular Bag to Lens Materials. Investigative Ophthalmology & Visual Science July 2015, Vol.56, 4249-4256

 

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Viobio Lab

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Wellman Center for Photomedicine

Native astigmatism biases subjective best focus setting, published in the Journal of Vision

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The study, published in the current issue of Journal of Vision, explores the role of native astigmatism and ocular aberrations on best-focus setting and its shift upon induction of astigmatism in 42 subjects (emmetropes, myopes, hyperopes, with-the-rule and against-the-rule astigmats), using a custom adaptive optics system. Best focus shifted in opposite directions in WTR and ATR astigmats upon induction of astigmatism, symmetrically with respect to the best-focus shift in nonastigmatic myopes. The shifts are consistent with a bias towards vertical and horizontal retinal blur in WTR and ATR astigmats, respectively, indicating adaptation to native astigmatism. The study is part of a collaboration between VioBio Lab and Essilor International.

Full publication: Marcos, S., Velasco-Ocana, M., Dorronsoro, C., Sawides, L., Hernandez, M., & Marin, G. (2015). Impact of astigmatism and high-order aberrations on subjective best focus. Journal of Vision, 15(11):4, 1–12.

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