Comparability and repeatability of corneal astigmatism measurements using different measurement technologies
| Autor: | Nienke Visser, Frenne Verbakel, Tos T. J. M. Berendschot, John de Brabander, Rudy M.M.A. Nuijts |
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| Přispěvatelé: | Oogheelkunde, RS: NUTRIM - R1 - Metabolic Syndrome, RS: MHeNs School for Mental Health and Neuroscience |
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Adult
Male Scheimpflug principle Astigmatism Diagnostic Techniques Ophthalmological Refraction Ocular law.invention Cohort Studies Cornea Young Adult law medicine Humans Prospective Studies Mathematics Observer Variation Keratometer medicine.diagnostic_test Comparability Healthy subjects Reproducibility of Results Repeatability Middle Aged medicine.disease Corneal topography Sensory Systems Ophthalmology Optometry Surgery Female Corneal astigmatism |
| Zdroj: | Journal of Cataract and Refractive Surgery, 38(10), 1764-70. Elsevier Science |
| ISSN: | 0886-3350 |
| DOI: | 10.1016/j.jcrs.2012.05.036 |
| Popis: | PURPOSE: To determine the comparability and repeatability of corneal astigmatism measurements obtained with different devices and determine the interobserver variability of a new automated keratometer. SETTING: University Eye Clinic Maastricht, the Netherlands. DESIGN: Prospective cohort study. METHODS: The right eye of healthy subjects was examined with the following 6 devices: IOLMaster (automated keratometry), Lenstar (automated keratometry), SMI Reference Unit 3 (automated keratometry), Javal (manual keratometry), KR-1W (corneal topography), and Pentacam (Scheimpflug imaging). An experienced operator obtained 3 repeated measurements. An inexperienced operator obtained additional measurements with the SMI Reference Unit 3. Astigmatism vector analysis was used to determine the comparability, repeatability, and interobserver variability. RESULTS: Corneal astigmatism vectors measured by automated, manual, or simulated keratometry were comparable except for the Pentacam equivalent keratometry (K) (P |
| Databáze: | OpenAIRE |
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