Topographical pachymetry and pachymetric topography in circumscribed posterior keratoconus
Parafita, M.A.; González-Meijome, J.M.; Díaz, J.A.; Yebra-Pimentel, E.
Archivos de la Sociedad Espanola de Oftalmologia 75(9): 633-636
2000
ISSN/ISBN: 0365-6691 PMID: 11151236 Document Number: 525748
A 29 year-old male patient presenting circumscribed posterior keratoconus in the left eye was studied. After ocular examination, corneal morphometry was studied by a computer-assisted topographic analysis and topographical ultrasonic pachymetry. Corneal thickness profile was represented by a colour-coded map from twenty-five measured points (pachymetric topography). Slit lamp biomicroscopy shows a paracentral-localized area of moderate corneal thinning with a nasal-superior concavity on posterior corneal surface. Topographical pachometry and pachometric topography allow to make precise corneal thinning evaluation and offer useful diagnostic data for this rare corneal dystrophy.