Accuracy and reproducibility of IOLMaster versus contact ultrasound biometry

Abstract

AIM: To compare biometry results of IOLMaster and contact ultrasound(US)anterior segment parameters, and to evaluate the calculation accuracy and repeatability of intraocular lens power in both.METHODS: Preoperative measurement of anterior segment parameters were prospectively obtained in 137 eyes of 121 subjects with the IOLMaster compared with the US. Postoperative best corrected visual acuity(BCVA)and the actual diopter were measured.RESULTS: There was an excellent correlation between IOLMaster and US measurements for the ACD(r=0.823, Pr=0.996, PPCONCLUSION: Partial coherence biometry using the IOLMaster provides the more accurate and reliable anterior segment parameters measurement values. A high degree of agreement between US and IOLMaster is noted. The IOLMaster not only has the advantage of performing noncontact examinations, but also produces various additional data simultaneously and may thus obviate the need for multiple examinations.

Keywords

• anterior chamber depth
• axial length
• corneal curvature
• IOLMaster
• contact ultrasonic axial scan
• cataract