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

Comparison between grating acuity measured by visual tracking and preferential looking in infants.

Dora Lengyel1, Irene Gottlob

  • 1Department of Strabismus and Neuro-Ophthalmology, St.Gallen, Kantonsspital, Switzerland.

Strabismus
|July 11, 2003
PubMed
Summary

Visual tracking is a valid method for infant visual acuity testing, though it yields lower results than preferential looking due to attention demands.

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

Genome-wide association and multi-omics functional screens reveal the genetic architecture of foveal development.

medRxiv : the preprint server for health sciences·2026
Same author

Whole-genome sequencing uncovers diverse genetic causes and phenotypic signatures in infantile nystagmus and albinism.

NPJ genomic medicine·2026
Same author

Optical coherence tomography in pediatric ophthalmology: Insights into ocular development, diagnosis and management of eye diseases.

Progress in retinal and eye research·2026
Same author

The role of feedback in amblyopia treatment - a multi-centre randomised control trial.

Eye (London, England)·2026
Same author

<i>CACNB3</i> defects are associated with infantile idiopathic nystagmus.

Brain communications·2026
Same author

Feasibility and reproducibility of handheld and table-mounted optical coherence tomography in children with craniosynostosis.

Eye (London, England)·2026

Area of Science:

  • Ophthalmology
  • Developmental Neuroscience
  • Pediatric Vision

Background:

  • Assessing visual acuity in infants is crucial for early detection of visual impairments.
  • Traditional methods may be limited by infant cooperation and attention span.

Purpose of the Study:

  • To compare visual acuity measurements obtained through visual tracking and preferential looking in infants.
  • To determine the validity and reliability of visual tracking as an infant visual acuity assessment tool.

Main Methods:

  • Fifty-one healthy full-term infants (3-93 days old) were tested.
  • Visual acuity was measured using infrared photo-oculography for visual tracking (smooth and saccadic pursuit) and preferential looking with grating cards.
  • Stimuli for visual tracking involved moving gratings (0.1-1.6 cycles/degree) at a constant velocity.

Related Experiment Videos

Main Results:

  • A significant correlation (p < 0.05) was found between visual acuity measured by visual tracking and preferential looking.
  • Visual acuity determined by visual tracking was consistently lower than that determined by preferential looking in infants up to 14 weeks of age.

Conclusions:

  • Visual tracking is a valid method for assessing infant visual acuity.
  • Lower visual acuity values obtained via visual tracking may be attributed to the requirement for sustained infant attention.