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

[Morphoscopic perception at variable contrast and luminance levels in 97 subjects].

E de la Marnierre1, A Baltenneck, C Corbé

  • 1Hôpitaux des Armées, Lyon, France.

Canadian Journal of Ophthalmology. Journal Canadien D'Ophtalmologie
|March 11, 2000
PubMed
Summary

Young servicemen frequently experience reduced contrast sensitivity due to uncorrected refractive errors. Minor vision issues, like astigmatism, and binocular vision problems were common causes impacting visual perception.

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

Photodynamic therapy with verteporfin in the treatment of exudative idiopathic polypoidal choroidal vasculopathy.

European journal of ophthalmology·2006
Same author

[Orbital myositis associated with ulcerative colitis].

Journal francais d'ophtalmologie·2005
Same author

[Subhyaloid hemorrhage following a Valsalva maneuver].

Journal francais d'ophtalmologie·2005
Same author

[Phototoxic drugs and age-related maculopathy].

Journal francais d'ophtalmologie·2003
Same author

[Postoperative visual improvement in spheno-orbital meningioma: a case report].

Journal francais d'ophtalmologie·2003
Same author

[Comparison between Greenbaum's parabulbar anesthesia and Ripart's subtenon anesthesia in the anterior segment surgery].

Journal francais d'ophtalmologie·2002

Area of Science:

  • Ophthalmology
  • Visual Perception Science

Background:

  • Morphoscopic perception at varying contrast and luminance levels is crucial but understudied in young adults.
  • Previous research focused on disease and occupational settings, leaving a gap in understanding this function in healthy young populations.

Purpose of the Study:

  • To assess morphoscopic perception at variable contrast and luminance levels in young adult servicemen.
  • To identify common causes of reduced contrast sensitivity in this demographic.

Main Methods:

  • A prospective study involving 97 young servicemen (194 eyes) using the Gradual monitor.
  • Morphoscopic perception was evaluated at a mean light level of 85 cd/m2 across different spatial frequencies, with myopic correction.
  • Subjects with suboptimal visual acuity underwent comprehensive ophthalmologic examinations.

Related Experiment Videos

Main Results:

  • 87 subjects achieved 10/10 visual acuity; 34 had scores over 1 SD below the mean.
  • Minor refractive corrections, often for astigmatism, normalized results for 16 subjects.
  • Ophthalmologic findings included microstrabismus, anatomic lesions, and amblyopia in those with reduced visual acuity.

Conclusions:

  • Minor uncorrected or poorly corrected refractive problems were the primary cause (40%) of reduced contrast sensitivity in this young population.
  • Binocular vision issues, including amblyopia, accounted for 11% of cases.
  • Reduced contrast sensitivity was often noted in the non-dominant eye.