Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Mechanism of Ciliary Motion

Mechanism of Ciliary Motion

The ciliary structures were first seen in 1647 by Antonie Leeuwenhoek while observing the protozoans. In lower organisms, these appendages are responsible for cell movement, while in higher organisms, these appendages help in the movement of the extracellular fluids within the body cavities.
The cilia are made up of microtubules in a 9+2 arrangement, with nine microtubule doublet ring bundles, surrounding a pair of central singlet microtubule bundles. The doublet microtubule bundles are...

Computed Tomography

Computed Tomography

Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...

Chromatographic Resolution

Chromatographic Resolution

In chromatography, a solute moves through a chromatographic column and tends to spread, forming a Gaussian-shaped band. The longer the solute spends in the column, the broader the band becomes. The broadening can lead to overlaps within the column, affecting separation effectiveness.
The effectiveness of separation can be evaluated by determining the level of separation between two neighboring peaks in a chromatogram, which represents the individual components of a sample.
In chromatography,...

Classification of Skeletal Muscle Fibers

Classification of Skeletal Muscle Fibers

Skeletal muscles continuously produce ATP to provide the energy that enables muscle contractions. Skeletal muscle fibers can be categorized into three types based on differences in their contraction speed and how they produce ATP, as well as physical differences related to these factors. Most human muscles contain all three muscle fiber types, albeit in varying proportions.
Slow-Twitch Muscle Fibers
Slow oxidative, muscle fibers appear red due to large numbers of capillaries and high levels of...

Positron Emission Tomography

Positron Emission Tomography

Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body...

Muscles of the Eye

Muscles of the Eye

The muscles of the eye are sophisticated structures that control eye movement and focus, allowing for the precise and rapid adjustments necessary for vision. The human eye is controlled by ten muscles — six extraocular muscles, three intraocular muscles, and one primary eyelid retractor muscle.
Extraocular Muscles
The six extraocular muscles surround the eyeball and control its movements. They are responsible for a wide range of eye motions, including looking up, down, left, right, and...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Influence of diffractive surface geometry on optical quality and halo formation in sinusoidal trifocal intraocular lenses.

Scientific reports·2026

Same author

Optometrist-guided versus self-driven subjective refraction using tunable optics: quantifying the professional's impact.

Journal of optometry·2026

Same author

Current and Emerging Technologies for Continuous Intraocular Pressure Monitoring in the Control of Glaucoma Progression: A Scoping Review.

Journal of clinical medicine·2025

Same author

Exploring the do-it-yourself approach in subjective refraction.

PloS one·2025

Same author

Long-Term Natural History of Treatment-Naïve Geographic Atrophy in Age-Related Macular Degeneration.

Translational vision science & technology·2025

Same author

Macular inner retinal layers in multiple sclerosis.

Frontiers in neurology·2025

Search research articles

Related Experiment Video

Updated: Jan 28, 2026

Application of Optical Coherence Tomography to a Mouse Model of Retinopathy

Application of Optical Coherence Tomography to a Mouse Model of Retinopathy

Published on: January 12, 2022

Multisectorial changes in the ciliary muscle during accommodation measured with high-resolution optical coherence

Daniel Monsálvez-Romín¹, Alberto Domínguez-Vicent¹, José J Esteve-Taboada¹

¹Department of Optics and Optometry and Vision Sciences. University of Valencia, Valencia, Spain.

Arquivos Brasileiros De Oftalmologia

|February 28, 2019

Summary

The anterior ciliary muscle area increases with accommodation, particularly in nasal-temporal sectors. This study correlates these changes with vergence, offering insights into eye biomechanics.

More Related Videos

Author Spotlight: Anterior HR-OCT as a Non-Invasive Tool for Characterizing Ocular Surface Squamous Neoplasia

Author Spotlight: Anterior HR-OCT as a Non-Invasive Tool for Characterizing Ocular Surface Squamous Neoplasia

Published on: August 9, 2024

Integrated Photoacoustic Ophthalmoscopy and Spectral-domain Optical Coherence Tomography

Integrated Photoacoustic Ophthalmoscopy and Spectral-domain Optical Coherence Tomography

Published on: January 15, 2013

Related Experiment Videos

Last Updated: Jan 28, 2026

Application of Optical Coherence Tomography to a Mouse Model of Retinopathy

Application of Optical Coherence Tomography to a Mouse Model of Retinopathy

Published on: January 12, 2022

Author Spotlight: Anterior HR-OCT as a Non-Invasive Tool for Characterizing Ocular Surface Squamous Neoplasia

Author Spotlight: Anterior HR-OCT as a Non-Invasive Tool for Characterizing Ocular Surface Squamous Neoplasia

Published on: August 9, 2024

Integrated Photoacoustic Ophthalmoscopy and Spectral-domain Optical Coherence Tomography

Integrated Photoacoustic Ophthalmoscopy and Spectral-domain Optical Coherence Tomography

Published on: January 15, 2013

Area of Science:

Ophthalmology
Biomedical Engineering
Optometry

Background:

Accommodation is a crucial visual function involving ciliary muscle changes.
Understanding the biomechanics of accommodation is vital for diagnosing and managing visual disorders.
Anterior chamber optical coherence tomography (OCT) offers high-resolution imaging of ocular structures.

Purpose of the Study:

To quantify anterior ciliary muscle dimensional changes across different ocular sectors during accommodation.
To correlate these ciliary muscle alterations with induced vergence demand.
To investigate the sector-specific biomechanical responses of the anterior ciliary muscle.

Main Methods:

Utilized anterior chamber optical coherence tomography (OCT) to measure the anterior ciliary muscle in 24 healthy subjects.
Assessed muscle dimensions across nasal, superior, temporal, and inferior sectors at varying accommodative demands (0 to -3 D vergence).
Employed a linear model to analyze the relationship between ciliary muscle area and accommodative demand.

Main Results:

A significant increase in anterior ciliary muscle area was observed with accommodation in all measured sectors.
Maximum area increases reached approximately 30% in nasal-temporal sectors and 25% in inferior-temporal sectors.
A positive correlation trend was noted between ciliary muscle area changes and vergence demand.

Conclusions:

Anterior ciliary muscle area demonstrates a tendency to increase symmetrically with accommodation.
Findings contribute to a better understanding of accommodation biometry and biomechanics.
Results may inform future research on ocular accommodation and related conditions.