One hundred and seventy one eyes with intraocular lenses were studied to compare the predictive accuracy of the Fyodorov and Van der Heijde theoretical formulae of the Sanders-Retzlaff-Kraff (SRK) regression formula. The SRK regression formula was the most accurate. Our personal calculations of the A constants of this formula are given for several types of implants and manufacturers.
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机译：研究了一百一十一只人工晶状体眼，以比较Sanders-Retzlaff-Kraff（SRK）回归公式的Fyodorov和Van der Heijde理论公式的预测准确性。 SRK回归公式最准确。我们为几种植入物和制造商提供了该公式的A常数的个人计算值。
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