Related Experiment Video
Updated: May 27, 2025

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
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.
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.
Related Concept Videos
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 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 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 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

