Relationship between wave aberrations and histological features in ex vivo porcine crystalline lenses.

J Biomed Opt

Universidad de Santiago de Compostela, Facultad de Física, Área de Óptica, 15782 Santiago de Compostela, Spain.

Published: March 2011

Wave aberrations of isolated ex vivo porcine crystalline lenses were measured by using a point-diffraction interferometer. This method allowed us to gain greater insight into the detailed aberration structure of eye lenses showing systematic presence of some dominant aberrations. In order of significance, astigmatism together with spherical aberration, coma, and trefoil are the main aberrations present in all lenses. We found a high correlation between the axis of both astigmatism and trefoil with the Y-shaped suture planes of the lens, revealing a subtle relationship between the induced aberrations and the histological features.

Download full-text PDF

Source
http://dx.doi.org/10.1117/1.3484259DOI Listing

Publication Analysis

Top Keywords

wave aberrations
8
aberrations histological
8
histological features
8
vivo porcine
8
porcine crystalline
8
crystalline lenses
8
aberrations
5
relationship wave
4
features vivo
4
lenses
4

Similar Publications

Near-Field Clutter Mitigation in Speckle Tracking Echocardiography.

Ultrasound Med Biol

January 2025

Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong; Biomedical Engineering Programme, The University of Hong Kong, Hong Kong. Electronic address:

Objective: Near-field (NF) clutter filters are critical for unveiling true myocardial structure and dynamics. Randomized singular value decomposition (rSVD) stands out for its proven computational efficiency and robustness. This study investigates the effect of rSVD-based NF clutter filtering on myocardial motion estimation.

View Article and Find Full Text PDF

MicroRNAs (miRNAs) are small, non-coding RNAs that regulate the expression level of the target genes in the cell. Breast cancer is responsible for the majority of cancer-related deaths among women globally. It has been proven that deregulated miRNAs may play an essential role in the progression of breast cancer.

View Article and Find Full Text PDF

A Review of Cascaded Metasurfaces for Advanced Integrated Devices.

Micromachines (Basel)

December 2024

State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin 300072, China.

This paper reviews the field of cascaded metasurfaces, which are advanced optical devices formed by stacking or serially arranging multiple metasurface layers. These structures leverage near-field and far-field electromagnetic (EM) coupling mechanisms to enhance functionalities beyond single-layer metasurfaces. This review comprehensively discusses the physical principles, design methodologies, and applications of cascaded metasurfaces, focusing on both static and dynamic configurations.

View Article and Find Full Text PDF

Aims And Objectives: This study aimed to investigate the presence, type, and severity of hearing losses in individuals with Duane Retraction Syndrome (DRS), and to ascertain if there are anomalies in the auditory pathways at the brainstem level in DRS, believed to arise from aberrant interaction between cranial nerves and brainstem nuclei.

Study Design: Cross-sectional observational study.

Setting: Tertiary referral centre.

View Article and Find Full Text PDF

Talbot effect based sensor measuring grating period change in subwavelength range.

Sci Rep

December 2024

Physical Research Laboratory, Ahmedabad, Gujarat, 380009, India.

Talbot length, the distance between two consecutive self-image planes along the propagation axis for a periodic diffraction object (grating) illuminated by a plane wave, depends on the period of the object and the wavelength of illumination. This property makes the Talbot effect a straightforward technique for measuring the period of a periodic object (grating) by accurately determining the Talbot length for a given illumination wavelength. However, since the Talbot length scale is proportional to the square of the grating period, traditional Talbot techniques face challenges when dealing with smaller grating periods and minor changes in the grating period.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!