Quantitative ocular anatomy in vivo: comparison of axial length and anterior chamber depth values obtained by a single observer by means of optical biometry and immersion and applanation ultrasound biometry

ABSTRACT

The aim of the present work was to analyzeand compare axial length and anterior chamberdepth values obtained by means of IOLMaster™, immersion and applanationultrasound. Axial length and the anteriorchamber depth measurements were carriedout by a single observer in 30 volunteers(n=30; mean age, 68±10.7 years of age; range44 to 83 years) using IOLMaster™ (ZeissHumphrey System, CA, USA), immersion andapplanation ultrasound biometry. Ultrasoundmeasurements were carried out with the CompuscanA-B Storz (San Louis, MO, USA). TheIOLMaster™ provided axial length measurementsthat were 0.04 mm (p=0.936) and 0.13mm (p=0.606) higher than those fromimmersion and applanation ultrasound respectively.The mean difference between the opticaland applanation measurements was -0.11mm, and -0.03 mm between the optical andimmersion measurements. In conclusion,there are no significant differences betweenIOLMaster™, immersion and applanationultrasound axial length and anterior chamberdepth values (AU)

RESUMEN

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