Keratoconus Diagnosis: Validation of a Novel Parameter Set Derived from IOP-Matched Scenario

Table 1

Biomechanical parameters derived from the Corvis ST software and their corresponding definitions.

Parameters	Abbreviation	Definitions
The time of the first applanation (ms)	AT1	The length of time from the initiation of air puff to the first applanation
The time of the second applanation (ms)	AT2	The length of time from the initiation of air puff to the second applanation
The length of the first applanation (mm)	AL1	The lengths of flattened cornea at the first applanation
The length of the second applanation (mm)	AL2	The lengths of flattened cornea at the second applanation
The velocity of the first applanation (m/s)		Speed of corneal apex at the first applanation
The velocity of the second applanation (m/s)		Speed of corneal apex at the second applanation
The time of highest concavity (ms)	HC-time	Time from the initiation of air puff until the highest concavity of the cornea
DA Ratio Max 1 mm	DRM1	Maximum ratios of corneal deformation at the apex divided by the average deformation 1 mm to either side of the apex
Peak distance (mm)	PD	Distance of the two knees at highest concavity
Deformation amplitude (mm)	DA	Maximum deformation amplitude at highest concavity
The highest radius of concavity (mm)	HC-radius	Corneal concave curvature at its highest concavity