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Age, corneal curvature correlated with refractive prediction error in children

J Cataract Refract Surg. 2008;34(11):1940-1947.

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Age and mean corneal curvature correlated significantly with mean postoperative refractive prediction error in children undergoing cataract surgery with IOL implantation.

A retrospective case review included 203 eyes of 153 patients aged 18 years or younger. All patients underwent phacoemulsification with IOL implantation in the capsular bag. An experienced ophthalmologist used a retinoscope to perform all refractions manually.

The results showed a mean absolute value of the prediction error of 1.08 ± 0.93 D. Data showed statistically significant correlations between age at the time of surgery and mean corneal curvature to absolute value of prediction error (P = .0006 and P = .0088, respectively).

Axial length, IOL calculation formula, surgeon and A-scan type were not significantly correlated with prediction error.

"The complexities of this issue support the need for specific methods of measurement and an IOL calculation formula for the pediatric population," the study authors said.