Articoli Scientifici di Oftalmologia
Argomento : 2
Diagnosing Early Keratoconus
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It had been speculated for many years that in keratoconus, the
corneal epithelium responds to the thinning and ectasia of the cornea
in a vivid way. We now know that corneal thinning prompts
the epithelium to grow thinner as well. But in the area adjacent to
the corneal thinning, the epithelium becomes thicker, as nature
attempts to cover the irregularity and reduce the symptoms.
High-frequency ultrasound has been able to show these phenomena
for some time. Today, the Optovue Avanti Widefield OCT can
show these activities quickly and easily via its Epithelial Thickness
Mapping (ETM) software, which produces a color-coded map of the
epithelial thickness across the central 6 mm of the cornea.
