Comparison of Intraocular Lens Power Calculation Formulae in Pediatric Eyes

Comparison of IOL power calculation formulae for pediatric eyes

“…[4][5][6][7][8][9]11 Neely et al 7 reported a mean PE of 0.3 D (SD-1.5 D). They also reported that among the formulae tested, that is, SRK II, SRK-T, Holladay 1, and Hoffer Q, there was no significant difference.…”

“…Thus, our results are similar to many other published pediatric studies, which have also reported greater APE in eyes with shorter AL. 5,8,11,12 There is only one study in the literature 12 comparing the effect of personalizing the lens constant on the predictive accuracy of the IOL calculation formula. However, this is a very specialized subset of infant eyes below the age of 7 months with unilateral cataracts.…”

“…[1][2][3] Several studies on children have shown larger errors in IOL formula predictions than that are found in adults. [4][5][6][7][8][9] Further, several authors have compared the accuracy of different IOL formulae designed for adult eyes in predicting early postoperative refractive error in eyes of infants and young children. 7,[9][10][11][12] However, there is no consensus as to which formula provides the best prediction of early postoperative refraction, particularly in the extremely small eye.…”

“…12 In pediatric eyes, however, results are inconsistent. [4][5][6][7][8][10][11][12] Further, most published studies in the literature are retrospective. [4][5][6][7][8]10,11 Optimizing or personalizing the lens constant has been recommended by authors of several formulae to improve their accuracy and predictability.…”

“…[4][5][6][7][8][10][11][12] Further, most published studies in the literature are retrospective. [4][5][6][7][8]10,11 Optimizing or personalizing the lens constant has been recommended by authors of several formulae to improve their accuracy and predictability. [13][14][15][16] Personalizing the lens constant can be used to make global adjustments for a variety of practice-specific variables (eg, surgical technique, variations in AL and K measurements, and so on).…”