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 Experiment Video

Updated: May 14, 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

Just-noticeable differences for wavefront aberrations obtained with a staircase procedure.

Hendrik Jungnickel1, Daniel Weigel, Holger Babovsky

  • 1University of Applied Sciences, Jena, Germany.Hendrik.Jungnickel@gmx.de

Journal of Refractive Surgery (Thorofare, N.J. : 1995)
|February 6, 2013
PubMed
Summary

The just-noticeable difference (JND) for visual aberrations like coma varied significantly between individuals. Wavefront-guided LASIK decisions should consider patient-specific factors beyond just wavefront measurements.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

The use of smartwatch electrocardiogram beyond arrhythmia detection.

Trends in cardiovascular medicine·2023
Same author

In vivo closed-loop control of a locust's leg using nerve stimulation.

Scientific reports·2022
Same author

Off-Pump Coronary Artery Bypass Reduces Cardiac Death in Patients with Peripheral Arteriopathy.

The Thoracic and cardiovascular surgeon·2021
Same author

The use of both internal thoracic arteries for coronary revascularization increases the estimate of post-operative lower limb ischemia in patients with peripheral artery disease.

Journal of cardiothoracic surgery·2020
Same author

Necrotic Arachnidism in Germany due to Bite of a Dysderidae Spider Probably Imported from South Tyrol, Italy.

Acta dermato-venereologica·2020
Same author

Surgical treatment of nonfunctioning pituitary adenomas.

Expert review of endocrinology & metabolism·2019

Area of Science:

  • Ophthalmology
  • Visual Science
  • Optical Engineering

Background:

  • Subjective visual quality is influenced by optical aberrations.
  • Understanding the threshold for detecting these aberrations is crucial for vision correction.
  • Adaptive optics and psychophysical methods enable precise aberration measurement.

Purpose of the Study:

  • To quantify the magnitude of aberrations affecting subjective visual quality.
  • To evaluate the effectiveness of a staircase procedure for determining aberration thresholds.

Main Methods:

  • Healthy eyes underwent spectacle correction and induced aberrations (astigmatism, coma, trefoil) using adaptive optics.
  • Subjects compared corrected and aberrated vision using a radial test pattern.
  • A 'Best PEST' staircase procedure determined the just-noticeable difference (JND) for each aberration.

More Related Videos

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

Related Experiment Videos

Last Updated: May 14, 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

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

Main Results:

  • Median JNDs varied by aberration type (coma: 0.059 μm, astigmatism: 0.091 μm, trefoil: 0.108 μm) with significant interindividual differences.
  • Repeatability of JND measurements was good (0.095 μm).
  • Correlation found between JNDs and pre-existing residual aberrations.

Conclusions:

  • Coma has a lower JND than astigmatism or trefoil, but individual variations are substantial.
  • Ocular aberration correction decisions (e.g., LASIK) require more than wavefront data alone.
  • The staircase procedure reliably determines JNDs for visual aberrations.