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

Posterior keratoconus. An expanded classification scheme based on corneal topography

S K Rao1, P Padmanabhan

  • 1Sankara Nethralaya, Medical Research Foundation, Tamil Nadu, India.

Ophthalmology
|July 15, 1998
PubMed
Summary

Posterior keratoconus causes distinct corneal surface changes, with specific topographic patterns identified. These patterns may require further classification based on location and progression, impacting patient age and vision.

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

Analysis of Factors Affecting the Union of Closed Subtrochanteric Femur Fractures treated by Cephalomedullary Nailing.

Malaysian orthopaedic journal·2026
Same author

Robotic-assisted anterior and posterior cervical spine surgeries.

Musculoskeletal surgery·2025
Same author

Bifocal Stabilisation of Acute Acromioclavicular Joint Dislocation using Suture Anchor and Temporary K-Wires: A Retrospective Analysis.

Malaysian orthopaedic journal·2023
Same author

Coherent helicity-dependent spin-phonon oscillations in the ferromagnetic van der Waals crystal CrI<sub>3</sub>.

Nature communications·2022
Same author

298 THE INCIDENCE OF NEW OR WORSENING OAB SYMPTOMS IN PATIENTS WITH PRIOR SARS COV-2 INFECTION: A COHORT STUDY.

Continence (Amsterdam, Netherlands)·2022
Same author

Photocurrent-driven transient symmetry breaking in the Weyl semimetal TaAs.

Nature materials·2021

Area of Science:

  • Ophthalmology
  • Corneal Imaging
  • Refractive Surgery

Background:

  • Posterior keratoconus is a rare condition affecting the back surface of the cornea.
  • Understanding its topographic manifestations is crucial for diagnosis and management.

Purpose of the Study:

  • To evaluate and characterize the corneal changes associated with posterior keratoconus.
  • To identify distinct topographic patterns indicative of posterior keratoconus.

Main Methods:

  • Retrospective review of patient data and corneal topography.
  • Analysis of topographic patterns in generalized and localized posterior keratoconus.

Main Results:

  • Identified distinct topographic patterns in posterior keratoconus.

Related Experiment Videos

  • Generalized posterior keratoconus shows uniform corneal steepening.
  • Localized posterior keratoconus exhibits varied steepening or flattening depending on location (central, paracentral, peripheral).
  • Central and paracentral changes may correlate with patient age.
  • Unilateral posterior keratoconus poses a higher risk for amblyopia.

    • Conclusions:

    • Posterior keratoconus results in significant corneal surface alterations.
    • Distinct topographic patterns suggest a need for classifying localized posterior keratoconus into central-paracentral and peripheral subtypes.