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Pentacam HR System Parameters
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UHR-OCT Parameters
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Curvature-Derived Parameters
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Elevation-Derived Parameters
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Pachymetry-Derived Parameters
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Integrated Parameters
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OCT-Derived Parameters
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Anterior surface:
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Anterior surface:
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Thinnest point
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ISV
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Epithelium
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Bowman’s Layer
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Stroma
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K1 (Front)
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Emax (Front)
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Corneal Volume
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IHA
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EPSD
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BPSD
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SPSD
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K2 (Front)
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Ecenter (Front)
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IVA
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EPV
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BPV
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SPV
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Km (Front)
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IHD
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EEI (I/S)
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BEI(I/S)
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SEI(I/S)
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Kmax (Front)
| | |
KI
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EEI-MAX (I/S)
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BEI-MAX (I/S)
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SEI-MAX (I/S)
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Posterior surface:
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Posterior surface:
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Rmin
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EMean (total)
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BMean (total)
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SMean (total)
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K1 (Back)
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Emax (Back)
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CKI
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Emean (I)
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Bmean (I)
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Smean (I)
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K2 (Back)
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Ecenter (Back)
| | |
Emean (S)
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Bmean (S)
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Smean (S)
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Km (Back)
| | | |
Emin (I)
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Bmin (I)
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Smin (I)
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|
Kmax (Back)
| | | |
Emax (S)
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Bmax (S)
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Smax (S)
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- UHR-OCT= ultra-high resolution optical coherence tomography; Sub KC= subclinical keratoconus; KC= keratoconus; K1= flattest keratometric reading; K2= steepest keratometric reading; Km= mean keratometric reading; Kmax= maximum keratometric reading; Emax= maximum elevation reading; Emin= minimum elevation reading; Ecenter= corneal central elevation reading; ISV= index of surface variance; IHA= index of height asymmetry; IVA= index of vertical asymmetry; IHD= index of height decentration; KI= keratoconus index; Rmin= smallest radius; CKI= central keratoconus index; EPSD, BPSD, SPSD: standard deviation of thickness profile between individual and normal pattern of epithelium, Bowman’s layer and stroma; EPV, BPV, SPV: profile variation of epithelium, Bowman’s layer or stroma thickness profile within each individual; EEI (I/S), BEI (I/S), SEI (I/S): ectasia index of epithelium, Bowman’s layer or stroma; EEI-MAX (I/S), BEI-MAX (I/S), SEI-MAX (I/S): Maximum ectasia index of epithelium layer, Bowman’s layer or stroma; EMean (total); BMean (total); SMean (total): mean thickness of epithelium, Bowman’s layer or stroma; EMean (I), Bmean (I), Smean (I): mean inferior thickness of epithelium; Bowman’s layer or stroma; EMean (S), Bmean (S), Smean (S): mean superior thickness of epithelium; Bowman’s layer or stroma; Emin (I), Bmin (I), Smin (I): the thinnest thickness of the inferior epithelium; Bowman’s layer or stroma thickness map; Emax(S), Bmax(S), Smax (S): the thickest thickness of the superior epithelium; Bowman’s layer or stroma thickness map
