Topcon CA-200F, Instructions For Use Manual, Page: 31 / 62

CA-200F Corneal Analyser - Rev. 7 16/01/2012
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Keratometry
fig. 1-27
Tap on the
”K”
button to view the keratometric data (
fig. 1-27
):
Sim K
Ophthalmometric reading simulation
Meridians
Keratometric data at 3 mm, 5 mm and 7 mm
Emimeridians
Keratometric and emimeridian data at 3 mm, 5 mm and 7 mm
Keratorefractive indices
fig. 1-28
Tap on the
”I”
button to view the keratorefractive indices (
fig. 1-28
):
3 and 5 mm astigmatism
Average pupillar power for a 4.5 mm pupil
Asphericity of an 8mm diameter cornea
Longitudinal spherical aberration of a 4.5 mm diameter cornea area
Curvature irregularity calculated on the standard deviation of the instantaneous values
for a 4.5 mm cornea area
Asymmetry between the most curved and the flattest hemisphere calculated for a 4.5
mm diameter cornea area
SAI (Surface Asymmetry Index) represents the surface asymmetry index of a 4.5 mm
diameter cornea area