Abstract
Purpose :
Compare subjective refraction measurements obtained from the EyeQue VisionCheck device with Autorefractor and Phoropter refraction.
Methods :
A pilot study was conducted on 22 healthy adult participants. Each participant was examined for their refractive power in a randomised manner by an eye care provider using an autorefractor (AR) and a phoropter refraction (PR), as well as with a self-administered measurement with VisionCheck (VC) without cycloplegia.
Results :
All the presented results are for the right eye. The average spherical equivalent (M), J0, and J45 comparison between VC and PR showed no statistically significant difference (M: p=0.08; J0: p=0.05; J45: p=0.08). Similarly, no statistically significant difference was observed for the average M, J0, and J45 power comparison between VC and AR (M: p=0.23; J0: p=0.14; J45: p=0.14). The mean difference for M, J0, and J45 and the limits of agreement (LoA) when comparing VC with PR were M= -0.26 diopters (D), (+1.11 D, -1.50 D); J0= +0.09 D, (+0.64D, - 0.45D); J45 = 0.09 D, (+0.55 D, - 0.34 D), respectively. These data sets were highly correlated (M: r= 0.98, p<0.001; J0: r=0.81, p<0.001; J45: r=0.86, p<0.001). Similarly, the M, J0, and J45 and the LoA when comparing VC with AR were: M=-0.17 D, (+1.15 D, -1.64 D); J0 =+0.08 D, (+0.58D, - 0.41D); J45 = +0.11 D, (+0.55D, - 0.34 D), respectively, and these data sets also showed a strong positive correlation (M: r=0.98, p<0.001; J0:r=0.88, p<0.001; J45:r=0.79,p<0.001).
Conclusions :
The refractive error measurement obtained with the VC was equivalent to phoropter refraction and autorefractor. Since this was a pilot study, further work with a larger sample is needed to test its statistical significance and agreement intervals.
This abstract was presented at the 2024 ARVO Annual Meeting, held in Seattle, WA, May 5-9, 2024.