Predictability of intraocular lens calculation using the Holladay II formula after in-the-bag or optic captured posterior chamber intraocular lens implantation in paediatric cataracts.
OBJECTIVE
To assess the predictability of postoperative refraction using the Holladay II-formula in paediatric patients randomized to undergo 2 different surgical procedures.


METHODS
Fourty cataractous eyes of 29 patients (age 2.31-11.75 years) were operated with in-the-bag intraocular lens implantation. Randomly, either an anterior vitrectomy (group A, 19 eyes) or posterior optic capture without vitrectomy (group B, 21 eyes) was performed. Randomization was done in 4 separate age groups, in accordance with 4 target refractions (0, 1, 2 and 3 dpt) to compensate for the anticipated myopic shift.


RESULTS
The predicted refraction correlated with the achieved postoperative refraction (total group, p = 0.019), closer in group A (p = 0.033) than in group B (p = 0.265); however, the results of groups A and B were not significantly different (p = 0.324). There was a tendency for postoperative targeted hyperopia being underachieved in the youngest patients.


CONCLUSIONS
The Holladay II formula provides reliable intraocular lens calculation in paediatric cataracts. The tendency to underachieve the target refraction in younger patients needs further investigation.
Lüchtenberg
Marc
M
Department of Ophthalmology, Johann Wolfgang Goethe University, Frankfurt am Main, Germany. Luechtenberg@em.uni-frankfurt.de
Kuhli-Hattenbach
Claudia
C
Fronius
Maria
M
Zubcov
Alina A
AA
Kohnen
Thomas
T
D001699:Biometry / Q000379:methods; D019923:Capsulorhexis / Q000379:methods; D002386:Cataract / Q000150:complications; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007903:Lens Capsule, Crystalline / Q000601:surgery*; D019654:Lens Implantation, Intraocular / Q000379:methods*; D007910:Lenses, Intraocular; D011446:Prospective Studies; D012029:Refraction, Ocular / Q000502:physiology*; D042262:Retinoscopy; D014821:Vitrectomy