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: Jun 21, 2026

Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition
07:45

Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition

Published on: July 21, 2020

[A new haploscopic test device excludes blinking induced monocular perception].

S Koinzer1, C Kandzia, J Roider

  • 1Universitätsaugenklinik, UK-SH Campus Kiel. koinzer@auge.uni-kiel.de

Klinische Monatsblatter Fur Augenheilkunde
|August 1, 2009
PubMed
Summary
This summary is machine-generated.

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

Challenges and limitations of anal cancer and precancer screening among people with HIV in a real-world setting.

Infection·2026
Same author

Distinct Immunoglobulin Fc Glycosylation Patterns Are Associated with Disease Nonprogression and Broadly Neutralizing Antibody Responses in Children with HIV Infection.

mSphere·2020
Same author

[YAG laser vitreolysis for treatment of symptomatic vitreous opacities].

Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft·2018
Same author

Unmet needs of high-risk mothers reduce success of antiretroviral treatment in HIV-infected infants.

South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde·2018
Same author

Long-term follow-up of lamellar macular holes and pseudoholes over at least 5 years.

Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie·2018
Same author

[Orbital screwdriver injury in a toddler].

Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft·2018
Same journal

Corneal Neurotisation in Neurotrophic Keratopathy: A Retrospective Analysis of Functional Outcomes and Clinical Courses.

Klinische Monatsblatter fur Augenheilkunde·2026
Same journal

Evaluating the Long-term Success and Safety of Canaloplasty in Glaucoma Patients.

Klinische Monatsblatter fur Augenheilkunde·2026
Same journal

Imbalanced Trace Elements as Risk Factors in the Pathogenesis of Glaucoma.

Klinische Monatsblatter fur Augenheilkunde·2026
Same journal

Malnutrition as a Risk Factor for Cerebral and Glaucomatous Neurodegeneration - Mechanisms and Therapeutic Strategies.

Klinische Monatsblatter fur Augenheilkunde·2026
Same journal

Impact of Wearing a Face Mask on the Reliability of Standard Automated Perimetry in Glaucoma Patients and Suspects: a Retrospective Longitudinal Study.

Klinische Monatsblatter fur Augenheilkunde·2026
Same journal

[Siderotic Cataract Eight Months After Intralenticular Metallic Foreign Body: A Case Report and Surgical Management].

Klinische Monatsblatter fur Augenheilkunde·2026
See all related articles

A new device prevents blinking during vision tests, improving accuracy in detecting functional vision loss. This innovation enhances the reliability of haploscopic tests, like the pola test, for clinical use.

Area of Science:

  • Ophthalmology
  • Vision Science

Background:

  • Haploscopic tests, such as the pola test, are used to detect functional vision loss.
  • These tests aim to confuse patients regarding the origin of visual perceptions between eyes.
  • Single-sided blinking can easily overcome the intended confusion in these tests.

Purpose of the Study:

  • To introduce a novel device that prevents overcoming haploscopic confusion by blinking.
  • To enhance the reliability and applicability of haploscopic vision testing.

Main Methods:

  • A new mechanism was developed with lever-switches attached to the upper eyelids.
  • Eyelid movement triggers the device to shut off optotype projection.
  • The device was tested on 30 individuals undergoing the pola test.

More Related Videos

Quantification of Oculomotor Responses and Accommodation Through Instrumentation and Analysis Toolboxes
08:27

Quantification of Oculomotor Responses and Accommodation Through Instrumentation and Analysis Toolboxes

Published on: March 3, 2023

Related Experiment Videos

Last Updated: Jun 21, 2026

Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition
07:45

Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition

Published on: July 21, 2020

Quantification of Oculomotor Responses and Accommodation Through Instrumentation and Analysis Toolboxes
08:27

Quantification of Oculomotor Responses and Accommodation Through Instrumentation and Analysis Toolboxes

Published on: March 3, 2023

Main Results:

  • The device functioned correctly on 59 out of 60 eyes.
  • Initially, 24 out of 30 participants did not realize the induced confusion, while 6 did immediately.
  • 18 out of 30 participants remained unaware of the confusion even after prolonged testing.

Conclusions:

  • The developed device is highly effective, working on nearly all patients.
  • It successfully prevented most participants from overcoming the haploscopic confusion.
  • This upgrade enhances haploscopic tests for repeated examinations and aids in detecting unilateral vision loss.