Optical Measurement of Straylight in Eyes With Cataract

Autors: Onurcan Sahin, Alexandros Pennos, Harilaos Ginis, Lucia Hervella, Eloy A. Villegas, Belen Cañizares, Jose Maria Marin, Ioannis Pallikaris, Pablo Artal
Journal: Journal of Refractive Surgery
Volume: 32 (12)
Pages: 846-850
Year: 2016
ISBN: 1081-597X

 
ABSTRACT
PURPOSE: To measure straylight in a cohort of patients with cataract using a novel optical instrument and to correlate optical straylight values with clinical grade of […]

By |May 25th, 2018|Categories: 2016, Publications||0 Comments

Performance evaluation of a two detector camera for real-time video

Autors: Benjamin Lochocki, Adrián Gambín-Regadera, and Pablo Artal
Journal: Applied Optics
Volume: 55, Issue 36
Pages:10198-10203
Year: 2016
ISBN: 1559-128X

 
Abstract
Single pixel imaging can be the preferred method over traditional 2D-array imaging in spectral ranges where conventional cameras are not available. However, when it comes to real-time video imaging, single pixel imaging cannot compete with the framerates of conventional cameras, […]

By |May 24th, 2018|Categories: 2016, Publications||0 Comments

Single pixel camera ophthalmoscope

Autors: Benjamin Lochocki, Adrian Gambín, Silvestre Manzanera, Esther Irles, Enrique Tajahuerce, Jesus Lancis, and Pablo Artal
Journal: OPTICA (OSA)
Volume: 3, Issue 10
Pages:1056-1059
Year: 2016
ISBN: 2334-2536

 
Abstract
Ophthalmoscopes to image the retina are widely used diagnostic tools in ophthalmology and are vital for the early detection of many eye diseases. Although there are various effective optical implementations of ophthalmoscopes, […]

By |May 24th, 2018|Categories: 2016, Publications||0 Comments

Intraocular scattering compensation in retinal imaging

Autors: Dimitrios Christaras, Harilaos Ginis, Alexandros Pennos, and Pablo Artal
Journal: Biomedical Optics Express
Volume: 7, Issue 10
Pages: 3996-4006
Year: 2016
ISBN: 2156-7085

 
Abstract
Intraocular scattering affects fundus imaging in a similar way that affects vision; it causes a decrease in contrast which depends on both the intrinsic scattering of the eye but also on the dynamic range of […]

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Night myopia is reduced in binocular vision

 

Autors: Emmanuel Chirre; Pedro M. Prieto; Christina Schwarz; Pablo Artal
Journal: Journal Of Vision (JOV)
Volume: 16 (8):16
Pages: 1-10
Year: 2016
ISBN: 1534-7362

 

 
Abstract
Night myopia, which is a shift in refraction with light level, has been widely studied but still lacks a complete understanding. We used a new infrared open-view binocular Hartmann-Shack wave front sensor to quantify night myopia […]

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The accommodative ciliary muscle function is preserved in older humans

 

Autors: Juan Tabernero, Emmanuel Chirre, Lucia Hervella, Pedro Prieto and Pablo Artal
Journal: Scientific Reports
Volume: Rep. 6:25551
Pages: 1-7
Year: 2016
ISBN: 2045-2322

 

Presbyopia, the loss of the eye’s accommodation capability, affects all humans aged above 45 50 years old. The two main reasons for this to happen are a hardening of the crystalline lens and a reduction of the ciliary […]

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Environmental and Genetic Factors Explain Differences in Intraocular Scattering

Autors: Antonio Benito; Lucía Hervella; Juan Tabernero; Alexandros Pennos; Harilaos Ginis; Juan F. Sánchez-Romera; Juan R. Ordoñana; Marcos Ruiz-Sánchez; José M. Marín; Pablo Artal
Journal: Investigative Ophthalmology & Visual Science, IOVS
Volume: 57 (1)
Pages: 163-168
Year: 2016
ISBN: 0146-0404

 

ABSTRACT
Purpose: To study the relative impact of genetic and environmental factors on the variability of intraocular scattering within a classical […]

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

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 […]

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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