Performance evaluation of a sensorless adaptive optics multiphoton microscope

Autors: Martin Skorsetz, Pablo Artal, Juan M. Bueno
Journal: Journal Of Microscopy
Volume: 261 (Issue 3)
Pages: 246-258
Year: 2016
ISBN: 0022-2720

 

Summary

A wavefront sensorless adaptive optics technique was combined with a custom-made multiphotonmicroscope to correct for specimen-induced aberrations. A liquid-crystal-on-silicon (LCoS) modulatorwas used to systematically generate Zernike modes during image recording. The performance of the instrument was evaluated in samples providing different nonlinear signals […]

By |May 23rd, 2018|Categories: 2016, Publications||0 Comments

Image Formation in the Living Human Eye

 

Autors: Pablo Artal
Journal: The Annual Review of Vision Science
Volume: 1
Pages: 1 – 17
Year: 2015
ISBN: 978-0-8243-5101-4

 

 
ABSTRACT
The human eye is a relatively simple optical instrument that imposes the first performance limits on the visual system. This review describes the main optical properties of the eye: geometric image formation, aberrations, and intraocular scattering. The article also […]

By |May 23rd, 2018|Categories: 2015, Publications||0 Comments

Impact of scatter on double-pass image quality and contrast sensitivity measured with a single instrument

Autors: Juan M. Bueno, Guillermo Pérez, Antonio Benito and Pablo Artal
Journal: BioMedical Optics Express
Volume: 6, No. 12
Pages: 4841- 4849
Year: 2015
ISBN: 2156-7085

 
ABSTRACT
We compared objective Double-Pass (DP) image quality data with subjective visual parameters measured within the same modified instrument for different amounts of scatter. The original DP imaging channel of a clinical instrument was maintained intact and two […]

By |May 23rd, 2018|Categories: 2015, Publications||0 Comments

Effect of the equivalent refractive index on intraocular lens power prediction with ray tracing after myopic laser in situ keratomileusis

Autors:Carmen Canovas, Marrie van der Mooren, Robert Rosén, Patricia A. Piers, Li Wang, Douglas D. K, Pablo Artal
Journal:Journal of Cataract & Refractive Surgery
Volume: 41 (5)
Pages: 1030 – 1037
Year: 2015
ISBN: 0886-3350

ABSTRACT

PURPOSE:
To determine the impact of the equivalent refractive index (ERI) on intraocular lens (IOL) power prediction for eyes with previous myopic laser in situ keratomileusis […]

By |May 23rd, 2018|Categories: 2015, Publications||0 Comments

Injectable intraocular telescope: Pilot study

Autors: Muhammad A. Qureshi, Scott J. Robbie, Juan Tabernero, Pablo Artal
Journal:Journal of Cataract and Refractive Surgery
Volume: 41
Pages: 2125–2135
Year: 2015
ISBN: 0886-3350

 

PURPOSE: To assess the feasibility of a new injectable telescopic intraocular lens (IOL).
SETTING: London Eye Hospital, London, United Kingdom.
DESIGN: Prospective interventional pilot study.
METHOD: Eyes with bilateral, intermediate, or advanced dry age-related macular degeneration (AMD); preoperative decimal […]

By |May 23rd, 2018|Categories: 2015, Publications||0 Comments

Spatial properties of fundus reflectance and red–green relative spectral sensitivity

Autors: Dimitrios Christaras, Harilaos Ginis, Pablo Artal
Journal: Journal of the Optical Society of America A
Volume: 32 (9)
Pages: 1723-1728
Year: 2015
ISBN: 1084-7529

 

Abstract
We investigated the spatial characteristics of the diffuse light in the eye at two different wavelengths and the extent to which this may affect red–green relative spectral sensitivity. The fundus reflectance of six subjects was […]

By |December 2nd, 2015|Categories: 2015, Publications||0 Comments

Second-harmonic generation microscopy of photocurable polymer intrastromal implants in ex-vivo corneas

Autors: Juan M. Bueno, Raquel Palacios, Alexandros Pennos, and Pablo Artal
Journal: Biomedical Optics Express
Volume: 6 (6)
Pages: 2211-2219
Year: 2015
ISBN: 2156-7085

 
Abstract:
A custom adaptive-optics (AO) multiphoton microscope was used to visualize the corneal stroma after the insertion of a photocurable polymer material. A lamellar pocket was created and a certain amount of polymer in liquid form was injected. This turned into […]

By |December 2nd, 2015|Categories: 2015, Publications||0 Comments

An aspheric intraocular telescope for age-related macular degeneration patients

Autors: Juan Tabernero, Muhammad A Qureshi, Scott J Robbie, and Pablo Artal
Journal: BioMedical Optics Express
Volume: 6 (3)
Pages: 1010-1020
Year: 2015
ISBN: 2156-7085

Abstract:
We have designed an intraocular telescope for the posterior chamber of the human eye of patients with age related macular degeneration. The basic design is composed of two decentered high optical power lenses ( + 66D and −66D) […]

By |December 2nd, 2015|Categories: 2015, Publications, Sin categoría||0 Comments

Location of Achromatizing Pupil Position and First Purkinje Reflection in a Normal Population

Autors: Silvestre Manzanera, Pedro M. Prieto, Antonio Benito, Juan Tabernero, and Pablo Artal
Journal: IOVS
Volume: 56 (2)
Pages: 962-966
Year: 2015
ISBN: 0146-0404

PURPOSE. Quality of vision in patients who have undergone corneal refractive surgery depends
upon the optimal centration of the procedures used. The center of the pupil is used as a
reference point in some corneal ablation procedures. The […]

By |November 12th, 2015|Categories: 2015, Publications||0 Comments

Dynamics of the near response under natural viewing conditions with an open-view sensor

Autors: Emmanuel Chirre, Pedro Prieto, and Pablo Artal
Journal: Biomedical Optics Express
Volume: Vol. 6, Issue 10
Pages: 4200-4211
Year: 2015
ISBN: 2156-7085

 

ABSTRACT:
We have studied the temporal dynamics of the near response (accommodation, convergence and pupil constriction) in healthy subjects when accommodation was performed under natural binocular and monocular viewing conditions. A binocular open-view multi-sensor based on an invisible […]

By |October 1st, 2015|Categories: 2015, Publications||0 Comments