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

2.0K
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...
2.0K
Properties of Enantiomers and Optical Activity02:24

Properties of Enantiomers and Optical Activity

16.7K
It is essential to understand the difference between chiral and achiral interactions and the implications thereof in optical activity and their applications. Just as our feet, which are chiral, interact uniquely with chiral objects, such as a pair of shoes, but identically with achiral socks, enantiomers of a molecule exhibit different properties only when they interact with other chiral media. An example of a significant implication from this facet is the phenomenon known as optical activity,...
16.7K
Accessory Structures of the Eye01:17

Accessory Structures of the Eye

1.4K
Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...
1.4K
Influence of Earth's Curvature and Atmospheric Refraction on Leveling01:26

Influence of Earth's Curvature and Atmospheric Refraction on Leveling

50
During leveling, the Earth's curvature and atmospheric refraction introduce deviations in the line of sight from a true horizontal reference. When the line of sight is leveled, it remains perpendicular to the plumb line only at a single point. Beyond this, it deviates due to the Earth’s curvature, represented by the correction C. For a sight distance D, the deviation can be derived using the relationship:This relationship shows that the deviation increases quadratically with distance.
50

You might also read

Related Articles

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

Sort by
Same author

Influence of Astigmatism Type on Myopia Progression Among Children Wearing Defocus Incorporated Multiple Segments (DIMS) Spectacle Lenses.

Clinical ophthalmology (Auckland, N.Z.)·2026
Same author

Binocular Vision Anomalies in Scotland at Age 3.5-5.5 Years: An Epidemiological Study.

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

The Changing Natural History of Anisometropia: A Scoping Review.

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

Scoping Review of the Role of Accommodation and Binocular Coordination in Myopia Onset and Progression.

Clinical ophthalmology (Auckland, N.Z.)·2025
Same author

The role of astigmatism in myopia development, myopia progression and myopia control.

Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)·2025
Same author

Atropine and Spectacle lens Combination Treatment (ASPECT): 12-month results of a randomised controlled trial for myopia control using a combination of Defocus Incorporated Multiple Segments (DIMS) lenses and 0.025% atropine.

The British journal of ophthalmology·2025

Related Experiment Video

Updated: May 27, 2025

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

586

The Role of Orthoptists in Refraction.

Miriam L Conway1, Rakhee Shah1,2, Elizabeth Chapman3

  • 1City St George's, University of London, UK.

The British and Irish Orthoptic Journal
|February 17, 2025
PubMed
Summary

Orthoptists are already performing refraction in hospital eye services. Expanding their role to issue optical prescriptions could improve efficiency and patient care, with appropriate training and supervision.

Keywords:
Opticians Actorthoptistrefractionretinoscopy

More Related Videos

Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients
07:06

Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients

Published on: March 29, 2022

2.5K
Author Spotlight: Advancements in Refractive Surgical Correction for Presbyopia and Exploring Postoperative Visual Acuity
05:46

Author Spotlight: Advancements in Refractive Surgical Correction for Presbyopia and Exploring Postoperative Visual Acuity

Published on: September 20, 2024

353

Related Experiment Videos

Last Updated: May 27, 2025

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

586
Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients
07:06

Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients

Published on: March 29, 2022

2.5K
Author Spotlight: Advancements in Refractive Surgical Correction for Presbyopia and Exploring Postoperative Visual Acuity
05:46

Author Spotlight: Advancements in Refractive Surgical Correction for Presbyopia and Exploring Postoperative Visual Acuity

Published on: September 20, 2024

353

Area of Science:

  • Ophthalmology and Optometry
  • Allied Health Professions

Background:

  • The General Optical Council sought evidence on the Opticians Act in 2022.
  • Research was commissioned to explore orthoptists' role in refraction services.

Purpose of the Study:

  • To investigate the current and potential future involvement of orthoptists in refraction.
  • To assess the feasibility of orthoptists issuing optical prescriptions.

Main Methods:

  • Online virtual focus groups were conducted with eye care practitioners.
  • Discussions were audio-recorded, transcribed, and thematically analyzed.

Main Results:

  • Orthoptists currently perform refraction, particularly cycloplegic retinoscopy for children in hospital settings.
  • Participants supported orthoptists conducting refractions and issuing prescriptions under specific conditions, including training and supervision.
  • Potential benefits include reduced waiting times and improved assessment of accommodative dysfunction.

Conclusions:

  • Orthoptists are well-positioned to expand their role in refraction services.
  • Implementing supervised refraction and prescription issuance by orthoptists could enhance eye care delivery within hospital settings.