TY  - BOOK
AU  - Gupta, Arusha
TI  - Variability in Oculus Pentacam tomographer measurements in patients with keratoconus
SN  - 0277-3740
KW  - *Corneal Topography/mt [Methods]
KW  - *Keratoconus/pa [Pathology]
KW  - *Photography/is [Instrumentation]
KW  - *Tomography/is [Instrumentation]
KW  - Adolescent
KW  - Adult
KW  - Aged
KW  - Aged, 80 and over
KW  - Astigmatism/pa [Pathology]
KW  - Case-Control Studies
KW  - Cornea/pa [Pathology]
KW  - Female
KW  - Fixation, Ocular
KW  - Humans
KW  - Male
KW  - Middle Aged
KW  - Young Adult
KW  - MedStar Washington Hospital Center
KW  - Ophthalmology
KW  - Journal Article
KW  - Research Support, Non-U.S. Gov't
N1  - Available online from MWHC library: 2000 - present
N2  - CONCLUSIONS: Pentacam measurements show increased variability in patients with keratoconus. The degree of variability correlates with TA; METHODS: Three Pentacam measurements with 1-minute intervals were taken from 101 eyes (81 keratoconus and 20 controls) from 57 patients (47 keratoconus and 10 controls) by the same examiner and under the same conditions. Keratoconus eyes were divided into 3 subgroups based on topographic astigmatism (TA). Variability in astigmatism, mean keratometry, central corneal thickness, and fixation values were compared within the patient subgroups versus normal controls; PURPOSE: The aim of this study was to determine intertest variability of measurements taken by the Pentacam tomographer in eyes with keratoconus; RESULTS: Variability of all studied parameters (astigmatism, mean keratometry, central corneal thickness, and fixation values) increased with increasing TA in patients with keratoconus
UR  - http://dx.doi.org/10.1097/ICO.0000000000000344
ER  -