Jove
Visualize
Contact Us

Related Concept Videos

Genetic Screens02:46

Genetic Screens

Genetic screens are tools used to identify genes and mutations responsible for phenotypes of interest. Genetic screens help identify individuals or a group of people at risk of developing  genetic diseases and help them with early intervention, targeted therapy, and reproductive options.
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which result in visible changes...
Introduction to the Sign Test01:10

Introduction to the Sign Test

The sign test is an important tool in nonparametric statistics, offering a straightforward yet effective method for analyzing matched pairs, nominal data, or hypotheses concerning the median of a population. It transforms data points into positive or negative signs, avoiding the need for assumptions about data distribution and instead focusing on the direction of change. It is particularly valuable when data does not conform to the normal distribution requirements of many parametric tests. For...

You might also read

Related Articles

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

Sort by
Same author

Botulinum toxin chemodenervation for childhood strabismus in England: National and local patterns of practice.

PloS one·2018
Same author

Detection of gastro-oesophageal reflux disease (GORD) in patients with obstructive lung disease using exhaled breath profiling.

Journal of breath research·2012
Same author

Carotid stenting in high-risk patients: early and late outcomes.

Journal of interventional cardiology·2011
Same author

Ophthalmological, cognitive, electrophysiological and MRI assessment of visual processing in preterm children without major neuromotor impairment.

Developmental science·2010
Same author

Saccadic instabilities in albinism without nystagmus.

Experimental brain research·2006
Same author

Juvenile xanthogranuloma with presumed involvement of the optic disc and retina.

Archives of ophthalmology (Chicago, Ill. : 1960)·2004
Same journal

Editorial.

The American orthoptic journal·2017
Same journal

Editorial.

The American orthoptic journal·2017
Same journal

Editorial.

The American orthoptic journal·2017
Same journal

Congenital Cranial Dysinnervation Disorders: A Literature Review.

The American orthoptic journal·2017
Same journal

Alfred Bielschowsky, 1871-1940: Ophthalmologist, Innovative Scientist, and Influential Teacher.

The American orthoptic journal·2017
Same journal

Early Onset Sixth-Nerve Palsy with Eccentric Fixation.

The American orthoptic journal·2017
See all related articles
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: Jun 6, 2026

Practical Methodology of Cognitive Tasks Within a Navigational Assessment
05:19

Practical Methodology of Cognitive Tasks Within a Navigational Assessment

Published on: June 1, 2015

The lees screen test.

Chris Timms

    The American Orthoptic Journal
    |December 15, 2010
    PubMed
    Summary
    This summary is machine-generated.

    The Lees screen, a modification of the Hess screen, offers a novel method for diagnosing incomitant strabismus. It utilizes a double-sided mirror for dissociation, providing an alternative to traditional color dissociation techniques.

    More Related Videos

    The Multiple Sclerosis Performance Test (MSPT): An iPad-Based Disability Assessment Tool
    11:35

    The Multiple Sclerosis Performance Test (MSPT): An iPad-Based Disability Assessment Tool

    Published on: June 30, 2014

    A Parasite Rescue and Transformation Assay for Antileishmanial Screening Against Intracellular Leishmania donovani Amastigotes in THP1 Human Acute Monocytic Leukemia Cell Line
    12:22

    A Parasite Rescue and Transformation Assay for Antileishmanial Screening Against Intracellular Leishmania donovani Amastigotes in THP1 Human Acute Monocytic Leukemia Cell Line

    Published on: December 30, 2012

    Related Experiment Videos

    Last Updated: Jun 6, 2026

    Practical Methodology of Cognitive Tasks Within a Navigational Assessment
    05:19

    Practical Methodology of Cognitive Tasks Within a Navigational Assessment

    Published on: June 1, 2015

    The Multiple Sclerosis Performance Test (MSPT): An iPad-Based Disability Assessment Tool
    11:35

    The Multiple Sclerosis Performance Test (MSPT): An iPad-Based Disability Assessment Tool

    Published on: June 30, 2014

    A Parasite Rescue and Transformation Assay for Antileishmanial Screening Against Intracellular Leishmania donovani Amastigotes in THP1 Human Acute Monocytic Leukemia Cell Line
    12:22

    A Parasite Rescue and Transformation Assay for Antileishmanial Screening Against Intracellular Leishmania donovani Amastigotes in THP1 Human Acute Monocytic Leukemia Cell Line

    Published on: December 30, 2012

    Area of Science:

    • Ophthalmology
    • Vision Science

    Background:

    • The Hess screen is a standard tool for evaluating incomitant strabismus.
    • Traditional Hess screen methods use complementary color dissociation.

    Purpose of the Study:

    • To introduce and describe the Lees screen as a modification of the Hess screen.
    • To explain the novel dissociation method employed by the Lees screen.

    Main Methods:

    • The Lees screen replaces red-green color dissociation with a double-sided mirror.
    • This mirror design prevents simultaneous viewing of the same screen by both eyes.
    • Patient perception is maintained as images appear projected straight ahead.

    Main Results:

    • The Lees screen obtains similar diagnostic information to the Hess screen.
    • It offers an alternative dissociation technique for strabismus assessment.

    Conclusions:

    • The Lees screen provides a viable alternative for evaluating incomitant strabismus.
    • This modified approach may offer advantages in specific clinical scenarios.