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

6.2K
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...
6.2K

You might also read

Related Articles

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

Sort by
Same author

Comment on: 'Metagenomic next-generation sequencing: a game changer in the diagnosis of unique intraocular infections'.

Eye (London, England)·2026
Same author

Cediranib in addition to chemotherapy for women with relapsed platinum-sensitive ovarian cancer (ICON6): overall survival results of a phase III randomised trial.

ESMO open·2021
Same author

A decade of clinical development of PARP inhibitors in perspective.

Annals of oncology : official journal of the European Society for Medical Oncology·2019
Same author

Clinical Outcome of Patients with Advanced Biliary Tract Cancer in a Dedicated Phase I Unit.

Clinical oncology (Royal College of Radiologists (Great Britain))·2017
Same author

The Royal College of Ophthalmologists guidelines on serum eye drops for the treatment of severe ocular surface disease: executive summary.

Eye (London, England)·2017
Same author

The Royal College of Ophthalmologists guidelines on serum eye drops for the treatment of severe ocular surface disease: full report.

Eye (London, England)·2017

Related Experiment Video

Updated: May 4, 2026

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

820

Objective evaluation of refractive data and astigmatism: quantification and analysis.

S B Kaye1

  • 1St Paul's Eye Unit, Royal Liverpool University Hospital, Liverpool, UK.

Eye (London, England)
|December 17, 2013
PubMed
Summary

New methods precisely analyze refractive data, improving calculations for high-powered lenses like intraocular lenses and the cornea. These advanced formulas offer superior accuracy over simpler methods for refractive surgery outcomes.

More Related Videos

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

2.1K
Quantitative Fundus Autofluorescence for the Evaluation of Retinal Diseases
07:22

Quantitative Fundus Autofluorescence for the Evaluation of Retinal Diseases

Published on: March 11, 2016

10.4K

Related Experiment Videos

Last Updated: May 4, 2026

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

820
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

2.1K
Quantitative Fundus Autofluorescence for the Evaluation of Retinal Diseases
07:22

Quantitative Fundus Autofluorescence for the Evaluation of Retinal Diseases

Published on: March 11, 2016

10.4K

Area of Science:

  • Ophthalmology
  • Optometry
  • Optical Engineering

Background:

  • Accurate analysis of refractive data is crucial for effective vision correction.
  • Existing methods, like spherical equivalent, may involve approximations and systematic bias, particularly with high-powered lenses.
  • High-powered lenses, including intraocular lenses (IOLs) and corneal refractive surgery, demand precise refractive power calculations.

Purpose of the Study:

  • To present improved methods for analyzing refractive data.
  • To develop precise univariate equations for representing average lens power, accounting for aberrations.
  • To compare existing and novel methods for analyzing individual and aggregate refractive data.

Main Methods:

  • Comparison of different methods for analyzing refractive powers.
  • Development of novel equations for univariate representation of refractive data, including aberrations.
  • Calculation of average lens power across principal, orthogonal, and oblique meridians.

Main Results:

  • The developed equations provide a precise univariate representation of refractive power and astigmatism.
  • Novel formulae are more precise and less prone to systematic bias than simpler methods like spherical equivalent.
  • Accurate calculations are demonstrated for average lens power in various meridians.

Conclusions:

  • The presented methods offer superior precision for analyzing refractive data, especially for high-powered lenses.
  • These improved calculations are vital for intraocular lens power, toric IOLs, and corneal refractive surgery.
  • Accurate refractive analysis is essential for improving surgical outcomes and statistical significance of treatment effects.