Eur J Anat, 10 (1): 27-29 (2006)

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

Sanchis-Gimeno J.A., Lleo A., Herrera M., Arran-Gimenez E.M., Alonso L., Rahhal M.S., Martinez-Soriano F.

Department of Anatomy and Human Embryology, Faculty of Medicine, University of Valencia, Spain; Rahhal Ophthalmology Clinic, Valencia, Spain; Unit of Human Anatomy, Embryology and Biomechanics, Department of Optics, University of Alicante, Spain; Apartado de correos 15038, E-46080 Valencia, Spain

ABSTRACT The aim of the present work was to analyze and compare axial length and anterior chamber depth values obtained by means of IOL-Master�, immersion and applanation ultrasound. Axial length and the anterior chamber depth measurements were carried out by a single observer in 30 volunteers (n = 30; mean age, 68 ± 10.7 years of age; range 44 to 83 years) using IOLMaster� (Zeiss Humphrey System, CA, USA), immersion and applanation ultrasound biometry. Ultrasound measurements were carried out with the Compuscan A-B Storz (San Louis, MO, USA). The IOLMaster� provided axial length measurements that were 0.04 mm (p=0.936) and 0.13 mm (p = 0.606) higher than those from immersion and applanation ultrasound respectively. The mean difference between the optical and applanation measurements was -0.11 mm, and -0.03 mm between the optical and immersion measurements. In conclusion, there are no significant differences between IOLMaster�, immersion and applanation ultrasound axial length and anterior chamber depth values.

Keywords: adult, aged, anterior eye chamber depth, article, biometry, controlled study, echography, eye axis length, female, human, human experiment, immersion, in vivo study, male, quantitative analysis, ultrasound, visual system parameters