geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Central corneal thickness measurement with the Pentacam Scheimpflug system, optical low-coherence reflectometry pachymeter, and ultrasound pachymetry


, : Central corneal thickness measurement with the Pentacam Scheimpflug system, optical low-coherence reflectometry pachymeter, and ultrasound pachymetry. Journal of Cataract and Refractive Surgery 31(9): 1729-1735

To assess the intraoperator repeatability and interoperator reproducibility of central corneal thickness measurements by the Pentacam Scheimpflug imaging system (Oculus) and the optical low-coherence reflectometer (OLCR) pachymeter (Haag-Streit) and to compare them with those of ultrasound (US) pachymetry. Assaf Harofe Medical Center Ophthalmology Outpatient Clinic, Zerifin, Israel. Repeatability was determined from 10 successive measurements in each of 4 healthy patients. Reproducibility for the Pentacam Scheimpflug system was determined from measurements by 2 operators in each of 24 patients; in these 24 patients, central corneal thickness measurements were compared between the Pentacam and US pachymetry. For the OLCR pachymeter, reproducibility was determined from measurements by 2 operators in each of 16 patients, in whom central corneal thickness was also measured with the Pentacam. Mean coefficient of repeatability was 0.84% for the Pentacam Scheimpflug system and 0.33% for the OLCR pachymeter. For the Pentacam, the coefficient of interoperator reproducibility was 1.10% and the 95% limits of agreement were -10.2 microm to +11.9 microm. Mean difference between Pentacam and US was 6.09 microm. For the OLCR pachymeter, the coefficient of interoperator reproducibility was 0.59% and the 95% limits of agreement were -5.4 microm to +7.0 microm. Mean difference between central corneal thickness values obtained with the OLCR pachymeter and Pentacam Scheimpflug system was 1.7 microm. Objective, noncontact measurement of central corneal thickness with the Pentacam Scheimpflug system and OLCR pachymeter was convenient and yielded excellent intraoperator repeatability and interoperator reproducibility. Central corneal thickness values obtained with the Pentacam were similar to those obtained with both the OLCR pachymeter and an US pachymeter. Further research is needed to corroborate whether central corneal thickness measurements by the Pentacam and OLCR devices can be used interchangeably and are more clinically useful than US pachymetry.

US$19.90

PMID: 16246776

DOI: 10.1016/j.jcrs.2005.03.058


Other references

Suga, K., 1966: Studies on the effect of steroids and hyperglycemia on the development of keratomycosis. Nippon Ganka Gakkai Zasshi 70(7): 684-718

Lanigan, C.; Buckley, M.P., 1983: Fractured sternum. Irish Medical Journal 76(6): 300-300

Tsai, Y-Hung.; Huang, K-Chin.; Huang, T-Jen.; Hsu, R.Wen-Wei., 2008: Case reports: fatal necrotizing fasciitis caused by Aeromonas sobria in two diabetic patients. We report two rare cases of Aeromonas sobria necrotizing fasciitis with sepsis in patients with diabetes. In both cases, immediate fasciotomy was performed and appropriate empiric antimicrobial therapy and intensive care were administered. However...

Re, M.; Crovato, E.; Malvani, O.; Garagiola, M.G., 1982: Exposure to polycyclic aromatic hydrocarbons (pahs) in industrial use of mineral oils: a method for risk evaluation. La Medicina del Lavoro 73(2): 140-146

Huneck S.; Urbaniak L.; Asakawa Y.; Grolle R.; Jaenicke S., 1986: The chemistry of three species of scapania hepaticae from the polish high tatra mountains. The essential oils from the following Scapania species from the Polish High Tatra Mountains have been analysed by GLC and GLC-MS: S. undulata, S. uliginosa and S. subalpina. The oils differ in their composition and confirm the taxonomic independen...

Anonymous, 2013: Global programme to eliminate lymphatic filariasis: progress report for 2012. Releve Epidemiologique Hebdomadaire 88(37): 389-399

Schmidt-Hellerau, C., 2009: "You've hurt me!": clinical reflections on moral sadism. I was boarding a shuttle from New York to Boston. Three rows in front of me, a mother seemed to be in some sort of struggle with her four or five-year-old son. "You've hurt me!" the boy exclaimed. The mother responded with a comment...

Zeybekoglu, U.; Turgut, F., 2003: A study on the life cycle and population density of Philaenus spumarius (L.) (Hom: Cercopidae) in Samsun. Philaenus spumarius exhibits a wide zoogeographical distribution in the Palaearctic and Nearctic regions. It feeds by sucking plant sap and transmits plant pathogens from diseased to healthy plants. The nymphs, which hatch in mid-April, undergo 5...

Okamoto, T.; Torii, S.; Machida, S., 2012: Differential gene expression of muscle-specific ubiquitin ligase MAFbx/Atrogin-1 and MuRF1 in response to immobilization-induced atrophy of slow-twitch and fast-twitch muscles. We examined muscle-specific ubiquitin ligases MAFbx/Atrogin-1 and MuRF1 gene expression resulting from immobilization-induced skeletal muscle atrophy of slow-twitch soleus and fast-twitch plantaris muscles. Male C57BL/6 mice were subjected to hind...

Bauer H., 1970: On the evaluation of the tone threshold audiogram in the ped audiology. Archiv Fuer Klinische Und Experimentelle Ohren: 267-269