Ocular biometry refers to the measurement of anatomical dimensions of the eye, which include corneal curvature (keratometry), axial length, and anterior chamber depth. These measurements are primarily used to calculate the appropriate power of the intraocular lens (IOL) to be implanted during cataract surgery. Given the technological advances in cataract surgery, and the introduction of premium intraocular lens implants, patient expectations continue to rise, and refractive error following cataract surgery is no longer tolerated. Therefore, it is of utmost importance to obtain accurate biometric readings to optimize postoperative refractive outcomes. This article will discuss the different modalities used for ocular biometry, the biometric parameters that are important for calculating the intraocular lens implant, and the variables that can affect the accuracy of the measurements.
眼生物测量是指对眼睛的解剖学尺寸进行测量，包括角膜曲率（角膜测量法）、眼轴长度和前房深度。这些测量主要用于计算白内障手术期间要植入的人工晶状体（IOL）的合适度数。鉴于白内障手术的技术进步以及高端人工晶状体植入物的引入，患者的期望持续提高，白内障手术后的屈光不正已不再被容忍。因此，获得准确的生物测量读数对于优化术后屈光结果至关重要。本文将讨论用于眼生物测量的不同方法、对于计算人工晶状体植入物很重要的生物测量参数以及可能影响测量准确性的变量。
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