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

Corneal topography using rasterstereography.

R C Arffa1, J W Warnicki, P G Rehkopf

  • 1Eye and Ear Institute, Pittsburgh, PA 15213.

Refractive & Corneal Surgery
|November 1, 1989
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

Corneal topography using computer analyzed rasterstereographic images.

Applied optics·2010
Same author

Digital database for clinical ophthalmology and telemedicine.

Insight (American Society of Ophthalmic Registered Nurses)·2001
Same author

Effect of hinged lamellar keratotomy on postkeratoplasty eyes.

Ophthalmology·2001
Same author

Endokeratoplasty as an alternative to penetrating keratoplasty for the surgical treatment of diseased endothelium: initial results.

Ophthalmology·2000
Same author

Efficient reactivation of latent herpes simplex virus type 1 infection by excimer laser keratectomy in the experimental rabbit ocular model.

American journal of ophthalmology·1998
Same author

Psoriasis, ichthyosis, and porphyria.

International ophthalmology clinics·1997
Same journal

American Society for Cataract and Refractive Surgery. Summer symposium on refractive surgery. August 26-29, 1993 Los Angeles, Calif.

Refractive & corneal surgery·1993
Same journal

European Society of Cataract and Refractive Surgeons. 11th annual conference. August 29-September 2, 1993 Innsbruck, Austria.

Refractive & corneal surgery·1993
Same journal

International Society of Refractive Keratoplasty. 1993 Mid-Summer Symposium July 23-25, 1993. Minneapolis, Minn.

Refractive & corneal surgery·1993
Same journal

Opinions on mini-radial keratotomy.

Refractive & corneal surgery·1993
Same journal

Residual myopia after radial keratotomy successfully treated with Baikoff ZB5M IOLs.

Refractive & corneal surgery·1993
Same journal

Time-delayed, two-step excimer laser photorefractive keratectomy to correct high myopia.

Refractive & corneal surgery·1993
See all related articles

Rasterstereography offers a novel approach to corneal topography, unaffected by surface reflectivity. This advanced imaging technique captures detailed ocular surface data, even with irregularities, providing comprehensive 3D corneal visualization.

Area of Science:

  • Ophthalmology
  • Biomedical Engineering
  • Medical Imaging

Background:

  • Assessing corneal topography is crucial for diagnosing and managing various eye conditions.
  • Existing methods like Placido disc systems rely on corneal reflectivity, limiting their application in certain clinical scenarios.

Purpose of the Study:

  • To introduce and describe rasterstereography as a new method for determining corneal topography.
  • To highlight the advantages of rasterstereography over traditional methods, particularly its independence from corneal reflectivity.

Main Methods:

  • Rasterstereography projects a grid of light bars onto the cornea.
  • A video camera captures the distorted grid pattern, which is then digitized and analyzed.
  • The system generates a three-dimensional image of the corneal surface, including elevation and curvature maps.

Related Experiment Videos

Main Results:

  • Rasterstereography provides detailed topographical information of the entire corneal, limbal, and conjunctival surfaces.
  • The method successfully acquires images despite epithelial irregularities, defects, sutures, or stromal ulceration.
  • 3D corneal surface reconstruction, contour maps, and curvature data can be generated.

Conclusions:

  • Rasterstereography is a versatile and robust technique for corneal topography.
  • Its ability to image compromised corneal surfaces expands diagnostic capabilities in ophthalmology.