title: Anterior segment parameters measured with 2 optical devices compared to ultrasonic data.
abstract: OBJECTIVE
  Ophthalmic parameters can be measured with different techniques and devices. Our aim was to measure anterior segment parameters using 2 optical devices and to compare the data to ultrasonic technique.
  
  
  METHODS
  Axial length (AL) was measured with IOLMaster; anterior chamber depth (ACD) was determined using IOLMaster, Visante® optical coherence tomography (OCT), and Pentacam® HR; and central corneal thickness (CCT) were measured with Pentacam® HR and with ultrasound.
  
  
  RESULTS
  In 45 eyes of 45 patients (age 62.73±15.31), the AL was 23.35±1.49 mm. The CCT was 541.7±39.9 µm with Visante OCT, 549.7±39.2 µm with Pentacam® HR, and 534.3±41.3 µm with ultrasonic device. The ACD was 3.0±0.42 mm with IOLMaster, 3.26±0.95 mm with Visante OCT, and 3.06±0.41 mm with Pentacam® HR. In case of CCT measurements, data obtained with Pentacam HR correlated with the results of ultrasonic measurements (r=0.89; p<0.001) and Visante OCT measurements (r=0.88; p<0.001). Regarding ACD results, a significant correlation was observed between Pentacam HR and IOLMaster (r=0.95; p<0.0001) but they did not significantly correlate to Visante OCT data (r=0.23; p=0.12). Correlation was significant between AL and ACD measured with IOLMaster (r=0.67; p<0.001).
  
  
  CONCLUSIONS
  The CCT and ACD data show strong correlation between different devices.
authors.affiliation: Department of Ophthalmology, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary. nemeth222@yahoo.com
authors.forename: Gabor
authors.initials: G
authors.lastname: Nemeth
authors.forename: Ziad
authors.initials: Z
authors.lastname: Hassan
authors.forename: Eszter
authors.initials: E
authors.lastname: Szalai
authors.forename: Andras
authors.initials: A
authors.lastname: Berta
authors.forename: Laszlo
authors.initials: L
authors.lastname: Modis
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000867:Anterior Chamber / Q000033:anatomy & histology*; D058452:Axial Length, Eye / Q000033:anatomy & histology*; D003315:Cornea / Q000033:anatomy & histology*; D063171:Corneal Pachymetry; D003941:Diagnostic Techniques, Ophthalmological / Q000295:instrumentation*; D006801:Humans; D008875:Middle Aged; D013223:Statistics as Topic; D041623:Tomography, Optical Coherence