What is the most common error made during immersion biometry?

The most common error in immersion biometry is often related to improper gate placement. Gate placement involves correctly positioning the ultrasound gate within the anatomic structures being evaluated, such as the eye. Accurate placement is vital for obtaining precise measurements of the eye's dimensions, which directly affect the calculation of intraocular lens power for cataract surgery and other refractive procedures.

When the gate is not placed correctly, it can lead to inaccurate measurements, such as errors in axial length determination, which can significantly impact surgical outcomes. The precision required in this procedure is critical, as even slight deviations in gate placement can translate into significant errors in clinical practice.

Proper training and attention to gate placement techniques are essential for sonographers to ensure accurate and reliable results during immersion biometry. This emphasizes the importance of this step in the overall process of ocular biometry.