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

Clinical comparison of three techniques for evaluating visual function behind cataract

B T Barrett1, P A Davison, P Eustace

  • 1Department of Vision Sciences, Glasgow Caledonian University, UK.

Eye (London, England)
|January 1, 1995
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

Abstracts of the proceedings of the 20th annual meeting of the irish neurological association held on 25th-26th may, 1984.

Irish journal of medical science·2016
Same author

Disruptions to human speed perception induced by motion adaptation and transcranial magnetic stimulation.

The European journal of neuroscience·2009
Same author

Nebulised ipratropium causing a unilateral fixed dilated pupil in the critically ill patient: a report of two cases.

Critical care and resuscitation : journal of the Australasian Academy of Critical Care Medicine·2006
Same author

Overexpression of beta-carotene hydroxylase enhances stress tolerance in Arabidopsis.

Nature·2002
Same author

Pseudoexfoliation and sensorineural hearing loss.

Eye (London, England)·2002
Same author

Pupillary autonomic denervation with increasing duration of diabetes mellitus.

The British journal of ophthalmology·2001
Same journal

Vaginal mucosa as an alternative eye-covering tissue in modified osteo-odonto-keratoprosthesis.

Eye (London, England)·2026
Same journal

Prevalence of and risk factors for diabetic retinopathy: The Thessaloniki Eye Study.

Eye (London, England)·2026
Same journal

Eyelid margin tick masquerading as a naevus in a child.

Eye (London, England)·2026
Same journal

Full-thickness macular penetration by welding laser injury.

Eye (London, England)·2026
Same journal

Incidence and characteristics of newly formed polypoidal lesions in polypoidal choroidal vasculopathy.

Eye (London, England)·2026
Same journal

Traumatic intravitreal egg-shaped hematoma.

Eye (London, England)·2026
See all related articles

Oscillatory displacement threshold (ODT) and potential acuity meter (PAM) effectively identify reduced vision in cataract patients, outperforming the Rodenstock Retinometer (RR). Both ODT and PAM show similar predictive abilities for visual function despite cataract density.

Area of Science:

  • Ophthalmology
  • Visual Neuroscience
  • Medical Optics

Background:

  • Cataract surgery aims to restore vision, but pre-operative assessment of retinal/neural function is crucial.
  • Ocular media opacities like cataracts can hinder accurate visual acuity measurements.
  • Existing methods for predicting post-operative visual acuity have limitations.

Purpose of the Study:

  • To compare the efficacy of oscillatory displacement threshold (ODT) hyperacuity with the potential acuity meter (PAM) and laser interferometer (Rodenstock Retinometer, RR) in identifying reduced retinal/neural function in cataract patients.
  • To evaluate the impact of cataract density on the predictive accuracy of these visual function tests.
  • To determine the sensitivity and specificity of ODT, PAM, and RR in distinguishing normal retinal/neural function from pathology.

Related Experiment Videos

Main Methods:

  • Fifty-two patients undergoing cataract extraction were included.
  • Pre-operative measurements included routine refraction, logMAR acuity, ODT, PAM, and RR.
  • Post-operative assessments were conducted ~7 weeks after surgery, with patients categorized into normal or pathology groups based on fundus examination.

Main Results:

  • Increasing cataract density negatively impacted predictions from PAM and ODT (p=0.0001), but not RR (p=0.137).
  • Pre-operative ODT, PAM, and RR all successfully distinguished between patients with and without retinal/neural pathology (p=0.0001, p=0.0001, p=0.0004, respectively).
  • PAM and ODT demonstrated higher sensitivity and specificity compared to RR in differentiating normal from pathological cases.

Conclusions:

  • ODT and PAM exhibit similar and superior predictive abilities for visual function compared to RR in cataract patients.
  • These findings suggest ODT and PAM are valuable tools for assessing retinal/neural function in the presence of ocular media opacities.
  • Further research with larger cohorts, particularly those with posterior segment pathology, is warranted to definitively establish the optimal technique.