Suitability of open-field autorefractors as pupillometers and instrument design effects
Autor: | Andrea Gascón, Juan Carlos Ondategui-Parra, Oriol Ferrer, Mikel Aldaba, Carles Otero, Jaume Pujol |
---|---|
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: | 2017 |
Předmět: |
Mesopic vision
Ophthalmology--Instruments Analytical chemistry Optical instruments pupil Mean difference Standard deviation Open field 03 medical and health sciences 0302 clinical medicine Ciències de la visió::Instruments òptics i optomètrics [Àrees temàtiques de la UPC] lcsh:Ophthalmology Clinical Research Medicine Computer vision repeatability open-field business.industry Pupil size Autorefractors Repeatability Ciències de la salut::Medicina::Oftalmologia [Àrees temàtiques de la UPC] Ophthalmology Pupillometry lcsh:RE1-994 030221 ophthalmology & optometry Artificial intelligence Òptica -- Aparells i instruments business Instrument design agreement Oftalmologia -- Aparells i instruments 030217 neurology & neurosurgery |
Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) Recercat. Dipósit de la Recerca de Catalunya instname International Journal of Ophthalmology, Vol 10, Iss 4, Pp 567-572 (2017) |
Popis: | AIM: To determine the agreement and repeatability of the pupil measurement obtained with VIP-200 (Neuroptics), PowerRef II (Plusoptix), WAM-5500 (Grand Seiko) and study the effects of instrument design on pupillometry. METHODS: Forty patients were measured twice in low, mid and high mesopic. Repeatability was analyzed with the within-subject standard deviation (Sw) and paired t-tests. Agreement was studied with Bland-Altman plots and repeated measures ANOVA. Instrument design analysis consisted on measuring pupil size with PowerRef II simulating monocular and binocular conditions as well as with proximity cues and without proximity cues. RESULTS: The mean difference (standard deviation) between test-retest for low, mid and high mesopic conditions were, respectively: -0.09 (+/- 0.16), -0.05 (+/- 0.18) and -0.08 (+/- 0.23) mm for Neuroptics, -0.05 (+/- 0.17), -0.12 (+/- 0.23) and -0.17 (+/- 0.34) mm for WAM-5500, -0.04 (+/- 0.27), -0.13 (+/- 0.37) and -0.11 (+/- 0.28) mm for PowerRef II. Regarding agreement with Neuroptics, the mean difference for low, mid and high mesopic conditions were, respectively: -0.48 (+/- 0.35), -0.83 (+/- 0.52) and -0.38 (+/- 0.56) mm for WAM-5500, -0.28 (+/- 0.56),-0.70 (+/- 0.55) and -0.61 (+/- 0.54) mm for PowerRef II. The mean difference of binocular minus monocular pupil measurements was: -0.83 (+/- 0.87) mm; and with proximity cues minus without proximity cues was: -0.30 (+/- 0.77) mm. CONCLUSION: All the instruments show similar repeatability. In all illumination conditions, agreement of Neuroptics with WAM-5500 and PowerRef II is not good enough, which can be partially induced due to their open field design. |
Databáze: | OpenAIRE |
Externí odkaz: |