Related Experiment Video

Updated: Feb 9, 2026

Subjective Refraction Test Using a Smartphone for Vision Screening
05:36

Subjective Refraction Test Using a Smartphone for Vision Screening

Published on: October 18, 2024

1.8K

Lens magnification affects the estimates of refractive error obtained using eccentric infrared photorefraction

Shrikant R Bharadwaj, Praveen K Bandela, Vinay Kumar Nilagiri

    Journal of the Optical Society of America. A, Optics, Image Science, and Vision
    |June 8, 2018
    PubMed

    More Related Videos

    Simulating the Mechanics of Lens Accommodation via a Manual Lens Stretcher05:14

    Simulating the Mechanics of Lens Accommodation via a Manual Lens Stretcher

    Published on: February 23, 2018

    7.2K
    Author Spotlight: Advancing Understanding of Age-Related Lens Stiffness Changes05:19

    Author Spotlight: Advancing Understanding of Age-Related Lens Stiffness Changes

    Published on: April 5, 2024

    2.9K

    Related Concept Videos

    Fundamental Attribution Error01:14

    Fundamental Attribution Error

    According to some social psychologists, people tend to overemphasize internal factors as explanations—or attributions—for the behavior of other people. They tend to assume that the behavior of another person is a trait of that person, and to underestimate the power of the situation on the behavior of others. They tend to fail to recognize when the behavior of another is due to situational variables, and thus to the person’s state. This erroneous assumption is...
    13.8K
    Eccentric Loading01:16

    Eccentric Loading

    Eccentric loading is a crucial concept in the study of structural engineering and mechanics, particularly when analyzing the stability and stress distribution in columns. Unlike centric loading, where the force is applied along the centroidal axis, causing uniform compression, eccentric loading occurs when a force is applied off-center. This off-center application introduces not only direct compressive stress but also bending stress, significantly influencing the column's behavior under...
    1.0K
    Eccentricity of an Ellipse01:27

    Eccentricity of an Ellipse

    An ellipse is a fundamental conic section defined by the constant sum of distances from any point on its curve to two fixed points, known as the foci. This geometric property can be physically demonstrated using a pencil, string, and two pins. By anchoring the string at both ends and maintaining it taut with a pencil, one can trace the outline of an ellipse.The shape and extent of the ellipse are determined by its eccentricity, e, defined as the ratio of the distance between the center and a...
    353
    General Case of Eccentric Axial Loading01:12

    General Case of Eccentric Axial Loading

    Unsymmetrical bending occurs when the bending moment applied to a structural member does not align with its principal axis. This misalignment leads to complex stress distributions and deflection patterns that differ from symmetrical bending, which are essential for designing structures to withstand different loading conditions.
    Consider a member subjected to equal and opposite forces that are applied along a line that does not coincide with the member's neutral axis. In unsymmetrical...
    527
    Systematic Error: Methodological and Sampling Errors01:15

    Systematic Error: Methodological and Sampling Errors

    In the case of systematic errors, the sources can be identified, and the errors can be subsequently minimized by addressing these sources. According to the source, systematic errors can be divided into sampling, instrumental, methodological, and personal errors.
    Sampling errors originate from improper sampling methods or the wrong sample population. These errors can be minimized by refining the sampling strategy. Defective instruments or faulty calibrations are the sources of instrumental...
    11.0K
    Design of Columns under an Eccentric Load01:21

    Design of Columns under an Eccentric Load

    Designing columns to withstand eccentric loads is a critical aspect of structural engineering, ensuring structures can support off-center loads without failure. This design process must account for the additional normal stresses introduced by eccentric loading, which can significantly influence a column's stress distribution and overall stability. An eccentric load applied to a column induces normal stresses that can be conceptualized as a combination of stresses due to an equivalent...
    1.2K