De Bernardo Maddalena, Zeppa Lucio, Forte Raimondo, Cennamo Michela, Caliendo Luisa, Zeppa Lucia, Rosa Nicola
a Department of Medicine and Surgery , University of Salerno , Salerno , Italy.
b San Giuseppe Moscati Hospital , Avellino , Italy.
Semin Ophthalmol. 2017;32(3):363-370. doi: 10.3109/08820538.2015.1096400. Epub 2016 Apr 14.
To study the correlation between right (RE) and left eye (LE) keratometry readings (K) and axial lengths (AL) in a population-based sample of normal subjects.
In a cross-sectional retrospective study conducted at S. Giuseppe Moscati Hospital, Avellino, Italy, 4516 eyes of 2258 patients with a mean age of 67 ± 16.36 years (range 18-96 years) were included. Partial coherence interferometry data obtained in right (RE) and left (LE) eyes were analyzed and correlated.
The average K was 44.01 ± 1.50 diopters (D) (range 39.09-49.89 D) in the RE and 44.04 ± 1.53 D (range 39.63-51.89 D) in the LE (p = 0.0075). 4.5% of the patients (101) presented with differences in the corneal power ≥ 1 D, corresponding to a difference of roughly 1 D in the IOL power. The average AL was 23.89 ± 1.77 mm (range 19.09-35.15 mm) in the RE and 23.84 ± 1.68 mm (range 19.23-35.04 mm) in the LE (p = 0.0018). 19.2% of the patients (433) presented with differences in the AL ≥ 0.4 mm, corresponding to a difference of roughly 1 D in the IOL power.
In calculating the IOL power, we must be aware of these results when we measure the fellow eye to validate the measurements in the first eye. In the case of postcataract refractive error, the outcome could be used for the second eye only when symmetric biometric findings are present.
在以人群为基础的正常受试者样本中，研究右眼（RE）和左眼（LE）角膜曲率读数（K）与眼轴长度（AL）之间的相关性。
在意大利阿韦利诺的圣朱塞佩·莫斯卡蒂医院进行的一项横断面回顾性研究中，纳入了2258例患者的4516只眼，平均年龄为67±16.36岁（范围18 - 96岁）。分析并关联右眼（RE）和左眼（LE）获得的部分相干干涉测量数据。
右眼平均角膜曲率为44.01±1.50屈光度（D）（范围39.09 - 49.89 D），左眼为44.04±1.53 D（范围39.63 - 51.89 D）（p = 0.0075）。4.5%的患者（101例）角膜屈光力差异≥1 D，相当于人工晶状体屈光力相差约1 D。右眼平均眼轴长度为23.89±1.77 mm（范围19.09 - 35.15 mm），左眼为23.84±1.68 mm（范围19.23 - 35.04 mm）（p = 0.0018）。19.2%的患者（433例）眼轴长度差异≥0.4 mm，相当于人工晶状体屈光力相差约1 D。
在计算人工晶状体屈光力时，测量对侧眼以验证第一眼的测量结果时，我们必须知晓这些结果。对于白内障术后屈光不正的情况，只有当生物测量结果对称时，该结果才可用于第二只眼。
