Evaluating refraction and visual acuity with the Nidek autorefractometer AR-360A in a randomized population-based screening study
Stoor, Katri; Karvonen, Elina; Liinamaa, Johanna; Saarela, Ville (2017-11-30)
Stoor, K., Karvonen, E., Liinamaa, J. and Saarela, V. (2018), Evaluating refraction and visual acuity with the Nidek autorefractometer AR-360A in a randomized population-based screening study. Acta Ophthalmol, 96: 384-389. https://doi.org/10.1111/aos.13636
© 2017 Acta Ophthalmologica Scandinavica Foundation. Published by John Wiley & Sons Ltd. This is the peer reviewed version of the following article: Stoor, K., Karvonen, E., Liinamaa, J. and Saarela, V. (2018), Evaluating refraction and visual acuity with the Nidek autorefractometer AR-360A in a randomized population-based screening study. Acta Ophthalmol, 96: 384-389, which has been published in final form at https://doi.org/10.1111/aos.13636. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving
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https://urn.fi/URN:NBN:fi-fe2023030830602
Tiivistelmä
Abstract
Purpose: The evaluation of visual acuity (VA) and refraction in the Northern Finland Birth Cohort Eye study was performed using the Nidek AR-360A autorefractometer. The accuracy of the method for this population-based screening study was assessed.
Methods: Measurements of the refractive error were obtained from the right eyes of 1238 subjects (mean age 47), first objectively with the AR-360A and then subjectively by an optometrist. Agreement with the subjective refraction was calculated for sphere, cylinder, mean spherical equivalent (MSE), cylindrical vectors J₄₅ and J₀ and presbyopic correction (add). Visual acuity (VA) was measured using an ETDRS chart and the autorefractometer.
Results: The refractive error measured with the AR-360A was higher than the subjective refraction performed by the optometrist for sphere (0.007 D ± 0.24 D p = 0.30) and also for cylinder (−0.16 D ± 0.20 D p < 0.0005). The bias between the measurements of MSE, J₄₅ and J₀ was low: −0.07 D ± 0.22 D (p = 0.002), 0.01 D ± 0.43 D (p = 0.25) and −0.01 D ± 0.42 D (p = 0.43), respectively. The amount of add measured by the autorefractometer was higher than the subjective 0.35 D ± 0.29 D (p < 0.0005). There was a statistically significant correlation between VA (p < 0.0005) and the difference between the subjective and objective refraction. In 99.2% of the measurements, visual values were within one decimal line of each other.
Conclusion: The Nidek AR-360A autorefractometer is an accurate tool for determining the refraction and VA in a clinical screening trial.
Kokoelmat
- Avoin saatavuus [31995]