Accuracy of biometry in pediatric cataract extraction with primary intraocular lens implantation.
OBJECTIVE
To determine the accuracy of predicted postoperative refractive outcomes in pediatric patients having cataract surgery with intraocular lens (IOL) implantation and to compare them with other variables historically considered important in cataract surgery.


METHODS
Tertiary care referral hospital.


METHODS
This retrospective review comprised 203 eyes of 153 consecutive pediatric patients (< or = 18 years old) having cataract extraction with primary posterior chamber IOL implantation in the capsular bag. All cases were performed by 1 of 2 surgeons, and all refractions were performed manually by an experienced pediatric ophthalmologist using a retinoscope.


RESULTS
In all patients, the mean absolute value (MAE) of the prediction error was 1.08 diopters (D) +/- 0.93 (SD). Age at time of surgery and corneal (K) mean curvature were significantly correlated with the absolute value of the prediction error (P = .0006 and P = .0088, respectively). A multiple regression model showed that age at time of surgery and K mean curvature were the only 2 variables significantly associated with MAE; axial length, formula, surgeon, and A-scan type were not significantly associated with prediction error.


CONCLUSIONS
Data from 203 consecutive primary pediatric IOL implantations showed the heterogeneous nature of the variables involved in predictions of refractive outcomes in this population. The complexities of this issue support the need for specific methods of measurement and an IOL calculation formula for the pediatric population.
Moore
Daniel B
DB
Indiana University School of Medicine, Riley Hospital for Children, Indianapolis, Indiana 46202, USA.
Ben Zion
Itay
I
Neely
Daniel E
DE
Plager
David A
DA
Ofner
Susan
S
Sprunger
Derek T
DT
Roberts
Gavin J
GJ
D000293:Adolescent; D001699:Biometry; D002387:Cataract Extraction; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D019654:Lens Implantation, Intraocular; D008297:Male; D019591:Pseudophakia / Q000503:physiopathology*; D012029:Refraction, Ocular / Q000502:physiology*; D015203:Reproducibility of Results; D012189:Retrospective Studies; D016896:Treatment Outcome