Atlas
Topography in a teenager whose glasses keep changing
Corneal topographyadvancedA 17-year-old with atopy and eye rubbing whose astigmatism has increased at each of three visits.
Diagnosis
Keratoconus on corneal topography
- Inferior island of steepening on the sagittal curvature map
- Asymmetric bow tie with the steep axis skewed
- Thinnest point displaced inferotemporally on the pachymetry map
- Minimum thickness about 430 microns