Hashemi, H. and Asharlous, A. and Aghazadeh Amiri, M. and Yekta, A. and Ramin, S. and Taheri, A. and Aghamirsalim, M. and Khabazkhoob, M. (2019) Intrasubject repeatability and interdevice agreement of anterior chamber depth measurements by orbscan and pentacam in different grades of keratoconus. Eye and Contact Lens, 45 (1). pp. 51-54.
Full text not available from this repository.Abstract
Objectives:To evaluate the repeatability of anterior chamber depth (ACD) measurements by Orbscan and Pentacam imaging devices in different grades of keratoconus.Methods:One examiner performed 3 consecutive ACD measurements with both devices on 74 eyes of 42 keratoconus patient. Repeatability was assessed using intrasession test-retest variability. Within-subject SD was determined for repeatability, and the coefficient of variation was calculated for each measurement. The intraclass correlation coefficient (ICC) was also determined to assess the variance of repeated data.Results:Overall, the three ACD measurements were not significantly different either with Pentacam or Orbscan. The ICC index values were greater than 90 with both devices, and it significantly reduced at higher grades of keratoconus with Pentacam. Interdevice differences were statistically significant. The interdevice agreement with ACD measurements was 0.981, and the agreement was lower at higher grades of keratoconus. The 95 limits of agreement between the 2 devices for ACD was from -0.19 to 0.04.Conclusions:Our results indicate acceptable repeatability for ACD measurements with both Orbscan and Pentacam in keratoconus patients. The progression of keratoconus has no significant effect on repeatability results of these devices. The good agreement between them allows their interchangeable use. © 2018 Contact Lens Association of Ophthalmologists, Inc.
| Item Type: | Article |
|---|---|
| Additional Information: | cited By 0 |
| Subjects: | WW Ophthalmology |
| Depositing User: | eprints admin |
| Date Deposited: | 22 Sep 2020 10:19 |
| Last Modified: | 22 Sep 2020 10:19 |
| URI: | http://eprints.iums.ac.ir/id/eprint/15472 |
Actions (login required)
 |
View Item |
