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 Videos

The binocular videorefractoscope for visual screening in infancy

M R Angi1, L Bergamo, C Bisantis

  • 1Clinica Oculistica Università di Padova, Italy.

German Journal of Ophthalmology
|May 1, 1993
PubMed
Summary

A new binocular videorefractoscope (VRB) improves infant eye screening for amblyopiogenic defects. This advanced tool offers accurate refractive status and ocular motility testing, enhancing early detection of vision problems in children.

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

Myopia evolution in pre-school children after full optical correction.

Strabismus·2011
Same author

Histamine determination in tears as an index of safety in use of cosmetic products.

International journal of cosmetic science·2009
Same author

Changes in myopia, visual acuity, and psychological distress after biofeedback visual training.

Optometry and vision science : official publication of the American Academy of Optometry·1996
Same author

Heritability of myopic refractive errors in identical and fraternal twins.

Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie·1993
Same author

Personality, psychophysical stress and myopia progression. A prospective study on 57 university students.

Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie·1993
Same author

Results of photorefractometric screening for amblyogenic defects in children aged 20 months.

Behavioural brain research·1992

Area of Science:

  • Ophthalmology
  • Pediatric Optometry
  • Medical Imaging Technology

Background:

  • Current photorefraction methods for infant amblyopiogenic defect screening have limitations.
  • These include inaccurate fixation control, limited measurement range, unclear borders, and chromatic aberration.
  • Existing instruments hinder reliable interpretation of infant refractive errors.

Purpose of the Study:

  • To develop and evaluate a novel binocular videorefractoscope (VRB) to overcome limitations of current photorefraction techniques.
  • To enable dynamic, non-dissociating refractive status assessment and ocular motility testing in infants.
  • To improve the accuracy and reliability of screening for amblyopiogenic defects in young children.

Main Methods:

  • A charge-coupled device (CCD) camera with near-infrared sensitivity and computer-based image grabber was utilized.

Related Experiment Videos

  • The VRB system incorporated infrared-emitting diodes for dynamic refractive error assessment (+/- 10 D).
  • Testing involved noncycloplegic screening of 212 three-year-olds, with results compared to manifest and cycloplegic autorefractometry.

    • Main Results:

    • The VRB accurately measured refractive errors, including sphere and cylinder, within a +/- 10 D range.
    • It detected strabismus (> 5 prism diopters) and media opacities.
    • The VRB demonstrated high diagnostic performance with 81% sensitivity and 97% specificity for amblyopiogenic defects.

    Conclusions:

    • The binocular videorefractoscope (VRB) provides a fast, noninvasive, and reliable method for evaluating amblyopiogenic factors in infants.
    • This technology addresses key limitations of traditional photorefraction, improving diagnostic capabilities.
    • The VRB is a valuable tool for early detection and management of vision disorders in children.