Non-rotational aspherical models of the human optical system

Giovanzana, Stefano; Kasprzak, Henryk T.; Pałucki, B.; Ţălu, Ştefan

doi:10.1080/09500340.2013.865802

“…30 The past few decades have seen considerable advances in the understanding of various aspects of the human cornea using different tools based on various mathematical methods, models and computerized algorithms. 14,28,29,42 Scientists have specifically modeled the ultrastructural details of the human cornea using Euclidean representations of natural objects. However, the human cornea has complex structures that are characterized by non-polyhedral volumes, rough surfaces, irregular outlines, and regulated patterns which are very difficult to be accurately evaluated using the Euclidean principles of regularity, smoothness and linearity.…”

Section: Introductionmentioning

confidence: 99%

Fractal Analysis of AFM Images of the Surface of Bowman’s Membrane of the Human Cornea

Ţălu

¹

,

Stach

²

,

Sueiras

³

et al. 2014

Get access via publisher Add to dashboard Cite

Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

show abstract

“…The impacts of higher-order and chromatic aberrations on vision can be investigated with the help of appropriate eye models [14,15]. Zhang et al [16] and He et al [17] developed two individual eye models, without and with the angle formed by visual and optical axis.…”

Section: Introductionmentioning

confidence: 99%

Construction of special eye models for investigation of chromatic and higher-order aberrations of eyes

Zhai

¹

,

Wang

²

,

Wang

³

et al. 2014

Bio-Medical Materials and Engineering

Get access via publisher Add to dashboard Cite

Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

show abstract

“…The point clouds representative of corneal geometry are later imported by the surface reconstruction software Rhinoceros v5.0 (MCNeel & Associates, Seattle, WA, USA). This software uses a mathematical model to generate surfaces based on non-uniform rational B-splines (NURBS) [14] and its validity in the Biomedical Engineering [15][16][17][18] and Ophthalmology [19][20][21][22] fields has been widely demonstrated. For this study, the "patch" surface generation function was used to reconstruct both corneal surfaces.…”

Section: Geometric Reconstruction Of Corneal Surfacesmentioning

confidence: 99%

Study of Morpho-Geometric Variables to Improve the Diagnosis in Keratoconus with Mild Visual Limitation

Cavas

¹

,

Fernández‐Pacheco

²

,

Cañavate

³

et al. 2018

Get access via publisher Add to dashboard Cite

Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

show abstract

Non-rotational aspherical models of the human optical system

Cited by 6 publications

References 28 publications

Fractal Analysis of AFM Images of the Surface of Bowman’s Membrane of the Human Cornea

Fractal Analysis of AFM Images of the Surface of Bowman’s Membrane of the Human Cornea

Construction of special eye models for investigation of chromatic and higher-order aberrations of eyes

Study of Morpho-Geometric Variables to Improve the Diagnosis in Keratoconus with Mild Visual Limitation

Contact Info

Product

Resources

About