corneal topography
Pronunciation: KOR-nee-al toe-POG-ra-fee
Diagnostic imaging technique that maps the curvature and shape of the corneal surface.
Full Definition
Corneal topography is a non-invasive diagnostic imaging method that creates detailed maps of corneal curvature, elevation, and thickness across the entire corneal surface. This technology uses reflected light patterns from the cornea to generate color-coded maps that reveal irregular astigmatism, keratoconus, post-surgical changes, and other corneal abnormalities invisible to standard examination methods. Modern systems can perform both anterior and posterior corneal surface analysis, providing crucial information for contact lens fitting, refractive surgery planning, and monitoring corneal diseases. The resulting topographic maps are essential tools for detecting early keratoconus, planning surgical interventions, and tracking post-operative healing in corneal procedures.
Usage
Usage note: Often abbreviated as 'topography' in clinical contexts when referring to corneal mapping.
In Context
- "Corneal topography revealed irregular astigmatism consistent with early keratoconus." — Diagnostic report
- "Pre-operative corneal topography is essential for planning refractive surgery procedures." — Surgical protocol guideline