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.
| | Variables | Def (units) | Included | Excluded |
| | AGE | Age (years) | 25068 | 0 | | AL | Axial length (mm) | 28240 | 12 | | ACD | Anterior chamber depth (mm) | 27923 | 229 | | LT | Lens thickness (mm) | 4395 | 23857 | | SPH1 | Sphere of the preoperative refraction (D) | 22818 | 5434 | | CYL1 | Cylinder of the preoperative refraction (D) | 22818 | 5434 | | AX1 | Preoperative axis (degree) | 22818 | 5434 | | SE1 | Preoperative spherical equivalent (D) | 22818 | 5434 | | SK | Power of the steepest meridian (D) | 28248 | 4 | | FK | Power of the flattest meridian (D) | 28248 | 4 | | Kav | Average corneal power (D) | 28248 | 4 | | UDVA1 | Preoperative uncorrected distance visual acuity | 28252 | 0 | | CDVA1 | Preoperative corrected distance visual acuity | 28252 | 0 | | IOL | IOL power (D) | 28252 | 0 | | SPH2 | Sphere of the postoperative refraction (D) | 25589 | 2663 | | CYL2 | Cylinder of the postoperative refraction (D) | 25589 | 2663 | | AX2 | Postoperative axis (degrees) | 25589 | 2663 | | SE2 | Postoperative spherical equivalent (D) | 25589 | 2663 | | UDVA2 | Postoperative uncorrected visual acuity | 28252 | 0 | | CDVA2 | Postoperative best corrected visual acuity | 28252 | 0 | | PE | Prediction Error (D) | 25589 | 2663 |
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In the AGE field, only the number of patients is considered. |
