Originally used to describe the corneal surface in the same language as keratometry, topography has grown into a robust diagnostic tool for refractive surgery, contact lenses fitting, treatment of ...

Researchers built a discriminant function combining four corneal wavefront variables and four Placido variables to effectively detect forme fruste keratoconus and keratoconus, according to a study.

Currently Available Corneal Topography Systems. With respect to the underlying imaging principles, corneal topography devices currently used clinically can be classified as placido-disk systems ...

Placido Disc Topography; 11,880 Corneal Data Points; Wavefront Aberrometry; 2,520 Wavefront Data Points; SA Cornea for Aspheric IOL selection; Lenticular-Residual Astigmatism; Angle Kappa; ...

New York, NY, Sept. 26, 2023 (GLOBE NEWSWIRE) -- Zion Market Research has published a new research report titled “Corneal Topographer Market By Product (Placido-Based Systems, Evaluation-Based ...

Indices based on the placido-disk devices include inferior-superior value (I-S), central corneal power, keratoconus predictability index (KPI), keratoconus index (KCI), keratoconus severity index ...