Comparison of the Adaptive Optics Vision Analyzer and the KR-1 W for measuring ocular wave aberrations
| Autor: | Carles Otero, Joan A Martínez‐roda, Jaume Pujol, Meritxell Vilaseca, Montserrat Arjona |
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| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament d'Òptica i Optometria, Universitat Politècnica de Catalunya. GREO - Grup de Recerca en Enginyeria Òptica |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Adult
Ciències de la visió::Òptica física [Àrees temàtiques de la UPC] Spectrum analyzer Adolescent Ulls -- Acomodació i refracció Optics Adaptive Diagnostic Techniques Ophthalmological Optical measurements 050105 experimental psychology Eye--Accommodation and refraction 03 medical and health sciences 0302 clinical medicine Optics Humans 0501 psychology and cognitive sciences Adaptive optics Physics business.industry 05 social sciences Òptica -- Mesuraments Middle Aged Refractive Errors Refraction Ophthalmology Cross-Sectional Studies Ciències de la visió::Optometria [Àrees temàtiques de la UPC] 030221 ophthalmology & optometry business Aberration Optometry |
| Zdroj: | Recercat. Dipósit de la Recerca de Catalunya instname UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| Popis: | The aim was to assess the agreement in the measurement of ocular aberrations between a new Adaptive Optics Vision Analyzer (AOVA, Voptica, Murcia, Spain) and a commercial aberrometer (KR-1 W, Topcon, Tokyo, Japan), both based on the Hartmann-Shack technique.One experienced examiner measured 29 healthy right eyes nine consecutive times with the two instruments. The individual Zernike coefficients and the root mean square (RMS) of each order from the second to the fifth order, the higher-order RMS (RMSBland and Altman analysis showed good agreement between instruments and most of the parameters showed no statistically significant differences. Although the largest mean differences were obtained for the defocus coefficient C(2,0) and the spherical equivalent (M) with a mean difference (and standard deviation) of 0.190 ± 0.099 µm and -0.150 ± 0.188 D, respectively, they were clinically acceptable and significant correlations were found between the AOVA and KR-1 W for the major refractive components such as spherical equivalent (r = 0.995, p0.001), JThe results suggest good agreement between instruments. Accommodation and misalignment of the measurements may play a role in some of the statistically significant differences that were obtained, specifically for defocus C(2,0), vertical coma C(3,-1) and spherical aberration C(4,0) coefficients; however, these differences were clinically irrelevant. |
| Databáze: | OpenAIRE |
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