|
KMID : 1159320230250020181
|
|
Korean Journal of Vision Science
2023 Volume.25 No. 2 p.181 ~ p.193
|
|
|
The Analysis on the Clinical Performance of Mobile app-Based Auto Refractometer
|
|
Lee Beob
Leem Hyun-Sung
|
|
|
Abstract
|
|
|
Purpose : The mobile app-based auto refractometerb (NETRA refraction mobilized, NR), developed by EYENETRA in the United States, is a device that measures refractive errors by operating the device directly by the test subject, and in order to confirm the clinical performance of NR, the measured values of subjective refraction (SR) and HRK-8000 were compared and analyzed.
Methods : This study recruited 124 patients (248 eyes) with myopia or myopic astigmatism, no systemic disease or eye disease under treatment, and no history of ophthalmic surgery from the customers of M optical store in Gyeonggi-do. The tests were conducted in the order of NR, HRK-8000, and SR to obtain a refractive error measurement result. The SPSS program (version 26) was used for statistical analysis, and a case of p<0.050 was judged statistically significant.
Results : Spherical, cylindrical, and spherical equivalent refractive powers were measured to have the highest myopia in NR measurements (p<0.01), and the average value compared to SR showed a lager difference in NR than HRK-8000, out of the standard deviation range.
In the ±5° range, the astigmatic axis of NR was 41.4% concordant with the SR astigmatic axis, whereas HRK-8000 was 90.8% concordant. The 95% limits of agreement range of spherical, cylindrical, and spherical equivalent of refractive powers for SR were +2.01∼-2.72 D, +1.69∼-2.20 D, and +1.89∼-2.81 D in NR, +0.84∼-0.96 D, +0.42∼-0.73 D, and +0.81∼ -1.09 D in HRK-8000. Therefore, the range of agreement of NR was wider than that of HRK in all variables, resulting in low accuracy.
Conclusion : In light of the findings mentioned above, it is judged that NR will be difficult to replace the existing automatic refractometer, and it is believed that accuracy needs to be improved in order to be used as a preliminary test in clinical practice.
|
|
|
KEYWORD
|
|
|
Accuracy, Auto-refractometer, Mobilized, Portable, Subjective refraction
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|