Research Article

Biometry, Refractive Errors, and the Results of Cataract Surgery: A Large Sample Study

Table 1

Definition of the used variables, their units, and the amount of eyes included and excluded.

VariablesDef (units)IncludedExcluded

AGEAge (years)250680
ALAxial length (mm)2824012
ACDAnterior chamber depth (mm)27923229
LTLens thickness (mm)439523857
SPH1Sphere of the preoperative refraction (D)228185434
CYL1Cylinder of the preoperative refraction (D)228185434
AX1Preoperative axis (degree)228185434
SE1Preoperative spherical equivalent (D)228185434
SKPower of the steepest meridian (D)282484
FKPower of the flattest meridian (D)282484
KavAverage corneal power (D)282484
UDVA1Preoperative uncorrected distance visual acuity282520
CDVA1Preoperative corrected distance visual acuity282520
IOLIOL power (D)282520
SPH2Sphere of the postoperative refraction (D)255892663
CYL2Cylinder of the postoperative refraction (D)255892663
AX2Postoperative axis (degrees)255892663
SE2Postoperative spherical equivalent (D)255892663
UDVA2Postoperative uncorrected visual acuity282520
CDVA2Postoperative best corrected visual acuity282520
PEPrediction Error (D)255892663

In the AGE field, only the number of patients is considered.