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Predictability of Refraction of Posterior Chamber Lens Implantation with Anterior Vitrectomy or Optic Capture in Pediatric Cataracts

1Lüchtenberg M., 1Zubcov-Iwantscheff A. A., 2Kohnen T.,
1Johann-Wolfgang-Goethe-Universität, Klinik für Augenheilkunde, Kinderaugenheikunde und Strabologie (Frankfurt/Main)
2Johann-Wolfgang-Goethe-Universität, Klinik für Augenheilkunde (Frankfurt/Main)

Purpose: The aim of our study was a comparison of two different operation procedures in pediatric cataract surgery concearning the predictability of refraction.
Method: After randomisation 40 eyes were operated with lens-extraction and posterior rhexis, anterior vitrectomy and in bag IOL-implantation (group A), or in bag IOL-implantation and posterior optic capture without vitrectomy (group B). The children were selected in 3 age-related groups (1,5 - 3; 3 - 6 and 6 -12). The IOL-calculation was carried out by the Holladay II-formula. After three weeks the postoperative refraction was compared with the calculated refraction.
Results: The deviation of the spherical equivalent of the postoperative refraction to the calculated refraction was in case of the Holladay II-formula better compared to Hoffer-Q, Holladay II or SRKT-formula. The mean of absolute refractive error was in the Holladay II-formula 0.761, in case of Holladay I 0.890, in the Hoffer Q 0.943 and in SRKT 0.869 (D).
Conclusions: The predictability of refraction in case of the Holladay II-formula seems to be a reliable IOL-calculation in pediatric cataracts.

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