Agreement between Keratometric readings by VERION image guided System, Galilei G4 and Pentacam
| Autor: | Mazhar Ishaq, Muhammad Amer Yaqub, Asad Habib, Muhammad Saim Khan |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Keratometer
business.industry Galilei Interclass correlation Significant difference Scheimpflug principle General Medicine Astigmatism medicine.disease law.invention Verion optical imaging 03 medical and health sciences 0302 clinical medicine law Quasi experimental study 030221 ophthalmology & optometry Medicine Optometry Original Article Pentacam business Corneal astigmatism Keratometry 030217 neurology & neurosurgery Dioptre |
| Zdroj: | Pakistan Journal of Medical Sciences |
| ISSN: | 1681-715X |
| Popis: | Objective: To study Agreement between Keratometric readings by VERION image guided System, Galilei G4 and Pentacam. Methods: The quasi experimental study was conducted at Armed Forces Institute of Ophthalmology, Rawalpindi, Pakistan from August 2016 to December 2016. Twenty five patients fulfilling the inclusion criteria participated in the study. All Patients were subjected to Keratometric assessment using Galilei G4 Dual Scheimpflug analyzer (Ziemer, Switzerland), Wavelight Oculyzer II (Pentacam, Germany) and Verion image guided system (Alcon). Steep and flat meridian and diopter of astigmatism by three systems were recorded and endorsed. All readings were taken by the same observer. Statistical Program for Social Sciences (SPSS) version 22.0 was used for statistical analysis. Results analyzed for significance by t-tests and Interclass correlation analysis. In t tests, P values of 0.7 was considered acceptable. Results: Fifty eyes of twenty-five patients (22 male, 28 female) with mean age of 29.50 ± 3.46 years were studied. Flat K, steep K and dioptric power of astigmatism were measured with verion, pentacam and Galilei G4. Interclass correlation analysis showed agreement between individual variables measured by the three devices, while one sample t test showed no significant difference between dioptric power of astigmatism between Verion-Pentacam and Verion- Galilei group. (p 0.178 for former and 0.622 for later group). Conclusion: Verion image guided system is comparable to other instruments used currently for keratometry. Verion can be interchangeably used with Pentacam and Galilee G4 in assessing corneal astigmatism. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|