Related Experiment Video
Updated: Aug 2, 2026

Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy (oSLO) and Optical Coherence Tomography (OCT)
Published on: August 4, 2018
Contribution of the ocular surface to visual optics
C B Courville1, M K Smolek, S D Klyce
1Lions Eye Research Laboratories, LSU Eye Center, Louisiana State University Health Sciences Center, New Orleans, LA 70112-2234, USA.
Abstract:
The air/tear interface contributes 70% of the vergence in the eye and, because of this, even minor variations in its shape can produce significant visual deficit. Placido disc-based corneal topographers measure the precise characteristics of the corneal surface, transforming shape into color-coded dioptric power maps and topography indexes related to optical quality and specific patterns associated with pathology. Artificial intelligence-based methods are used to classify corneal topography and these are used as screening tools. Coupling corneal topography measurements with aberrometry measurements permits the display of the internal aberrations of the eye. Together, these data provide the opportunity to extend refractive correction beyond sphere and cylinder to the higher order aberrations as well.
More Related Videos
Related Concept Videos
Vision
Glaucoma: Overview
Accessory Structures of the Eye
Anatomy of the Eyeball
Focusing of Light in the Eye
Microbiome of the Eye

