DGH TECHNOLOGY SCANMATE FLEX - Terms and Abbreviations

7
A-constant
The A-constant is a constant provided by an IOL manufacturer to be used in
IOL power calculaons.
ACD
Anterior Chamber Depth is dened as the measured distance from anterior
vertex of the cornea and the anterior vertex of the lens.
ACD (constant)
The ACD constant is a constant provided by the IOL manufacturer to be
used in Binkhorst formula IOL power calculaons.
a0
The a0 constant is calculated from the manufacturer’s A-constant to be
used in Haigis formula IOL power calculaons.
AXL
Axial Length is the distance between the anterior surface of the cornea and
the anterior surface of the rena of the eye.
CL
base curve
The contact lens base curve is the known curvature of the plano hard con-
tact lens.
CL
over
The contact lens over correcon is the measured refracon with the plano
lens in place.
CL
power
The contact lens power is the known power of the plano hard contact lens.
IOL
Intraocular Lens
IOP
Intraocular Pressure
K
corr
The corrected K value that should be used in IOL calculaons for paents
who have previously undergone refracve surgery.
K1
Flat Corneal Axis
K2
Steep Corneal Axis
LT
Lens Thickness
nc
The keratometer constant.
OD
Right Eye (Oculus Dexter)
OS
Le Eye (Oculus Sinister)
pACD
The pACD constant is calculated from the manufacturer’s A-constant to be
used in Hoer Q formula IOL Power calculaons.
post-K
avg
Average of K1 and K2 values measured aer refracve surgery.
pre-K
avg
Average of K1 and K2 values measured before refracve surgery.
Rx
Refracve error (D)
S.E.
post
Refracve error measured aer refracve surgery.
S.E.
pre
Refracve error measured before refracve surgery.
SF
The Surgeon Factor constant is calculated from the manufacturer’s A-
constant to be used in Holladay 1 formula IOL Power Calculaons
VCD Vitreous Chamber Depth
TERMS AND ABBREVIATIONS
The following terms and abbreviaons are used within this Operator’s Manual and in the
Scanmate soware.