Richards S C, Olson R J, Richards W L
Arch Ophthalmol. 1985 Apr;103(4):515-8. doi: 10.1001/archopht.1985.01050040057017.
In this study, we evaluated and compared two groups of posterior chamber intraocular lens (IOL) implantation cases. One group consisted of patients whose postoperative refraction was accurately predicted by IOL calculation formulas, while the other group included patients whose postoperative refraction was poorly predicted by the same formulas. We found that although postoperative astigmatism was greater in the poorly predicted group, preoperative to postoperative changes in astigmatism did not differ between the two groups. The poorly predicted group also had a shorter average axial length, a greater proportion of females, and an increased variability in most of the measurements we performed. The two groups did not differ significantly in terms of measured postoperative anterior chamber depth, age at the time of the surgery, IOL power and style implanted, complication rate, or preoperative corneal integrity.
在本研究中，我们评估并比较了两组后房型人工晶状体（IOL）植入病例。一组由通过IOL计算公式能准确预测术后屈光的患者组成，而另一组包括使用相同公式对术后屈光预测不佳的患者。我们发现，尽管预测不佳组术后散光更大，但两组之间术前至术后的散光变化并无差异。预测不佳组的平均眼轴长度也较短，女性比例更高，并且我们所进行的大多数测量的变异性增加。两组在测量的术后前房深度、手术时的年龄、植入的IOL度数和类型、并发症发生率或术前角膜完整性方面无显著差异。
