6533b821fe1ef96bd127b975
RESEARCH PRODUCT
Quantitative anatomical differences in central corneal thickness values determined with scanning-slit corneal topography and noncontact specular microscopy.
M.s. RahhalM. HerreraJuan A. Sanchis-gimenoLuis Garcia AlonsoF Martinez-sorianoAntonio Lleó-pérezsubject
Adultmedicine.medical_specialtyMicroscopyMaterials sciencegenetic structuresmedicine.diagnostic_testbusiness.industryCorneal TopographyReproducibility of ResultsCorneal topographySliteye diseasesSalt lakeCorneaOphthalmologyOpticsReference ValuesOphthalmologySPECULAR MICROSCOPYmedicineHumanssense organsProspective Studiesbusinessdescription
PURPOSE This study was designed to analyze the differences in central corneal thickness values determined with noncontact specular microscopy and scanning-slit corneal topography. The measurements were performed on the same eye. METHODS We analyzed the central corneal thickness values of 93 patients (n = 93) by means of noncontact specular microscopy (Topcon SP-2000P noncontact specular microscope, Topcon Corp., Tokyo, Japan) and scanning-slit corneal topography (Orbscan Topography System II, Orbscan Inc., Salt Lake City, UT). One experienced physician performed 3 consecutive central corneal thickness measurements with both devices. RESULTS The central corneal thickness values obtained by means of Orbscan pachymetry were 17 +/- 2.7 (range, 12-24) microm greater. A significant correlation was observed between scanning-slit corneal topography and noncontact specular microscopy (Pearson correlation coefficient, r = 0.976; P < 0.001). CONCLUSIONS Researchers should know of the existence of this difference between noncontact specular microscopy and Orbscan pachymetry when interpreting central corneal thickness values.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2005-12-24 | Cornea |