Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Focusing of Light in the Eye01:16

Focusing of Light in the Eye

Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
Angle Closure Glaucoma: Treatment01:28

Angle Closure Glaucoma: Treatment

Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
Open Angle Glaucoma: Treatment01:27

Open Angle Glaucoma: Treatment

In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...

You might also read

Related Articles

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

Sort by
Same author

Peripheral refractive errors in pseudophakic eyes: <i>in vitro</i> evaluation and optical simulation.

Biomedical optics express·2026
Same author

Crystalline Lens Shape During Accommodation in Children.

Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)·2026
Same author

Principles of a Non-orthogonal Optical Surface with Potential for Correction of Irregular Astigmatism.

Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)·2026
Same author

Nasotemporal Asymmetry in Ocular Biometry as a Biomarker for Myopia Progression in Chinese Children.

Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)·2026
Same author

Mechanism and process optimization of a newly proposed carbonate and phosphate co-biomineralization approach for multiple heavy metal stabilization.

Journal of hazardous materials·2026
Same author

Roadmap on advances in visual and physiological optics.

Journal of optics (2010)·2025

Related Experiment Video

Updated: Jul 4, 2026

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile
05:46

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile

Published on: September 20, 2024

Changes in through-focus spatial visual performance with adaptive optics correction of monochromatic aberrations.

Huanqing Guo1, David A Atchison, Benjamin J Birt

  • 1School of Optometry and Institute of Health & Biomedical Innovation, Queensland University of Technology, 60 Musk Avenue, Kelvin Grove, Qld 4059, Australia.

Vision Research
|July 4, 2008
PubMed
Summary

Adaptive optics improved visual acuity and contrast sensitivity in focus but worsened performance with defocus. Full correction of higher-order aberrations may impair spatial vision when some defocus is present.

More Related Videos

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter
05:14

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter

Published on: September 16, 2025

Related Experiment Videos

Last Updated: Jul 4, 2026

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile
05:46

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile

Published on: September 20, 2024

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter
05:14

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter

Published on: September 16, 2025

Area of Science:

  • Optometry
  • Vision Science
  • Optical Engineering

Background:

  • Adaptive optics (AO) systems are used to correct ocular aberrations.
  • Understanding the impact of AO on visual performance across different focal planes is crucial.

Purpose of the Study:

  • To investigate the effect of adaptive optics correction on through-focus visual acuity and contrast sensitivity.
  • To evaluate the influence of higher-order aberration correction on spatial visual performance under monochromatic light.

Main Methods:

  • Monochromatic visual acuity and contrast sensitivity were measured with and without adaptive optics correction.
  • Through-focus testing was performed to assess performance at various focal planes.
  • Measurements were conducted on two human subjects.

Main Results:

  • Adaptive optics improved in-focus visual acuity by 0.1 to 0.15 logMAR at high and 12% low contrast.
  • Adaptive optics led to faster and more symmetrical visual acuity decline away from the focal plane.
  • In one subject, adaptive optics improved in-focus contrast sensitivity but caused greater sensitivity loss with defocus due to higher-order aberration correction.

Conclusions:

  • Full correction of higher-order aberrations with adaptive optics may degrade spatial visual performance when some defocus is present.
  • The impact of adaptive optics on visual function is complex and depends on the presence and degree of defocus.