Rubio, Marcos, et al. “Validation of an Affordable Handheld Wavefront Autorefractor” Optom. Vis. Sci., vol. 96, no. 10, pp. 726–732, Oct. 2019.
Visual acuity resulting from correction based on QuickSee measurements was the same as that achieved by subjective refraction in 87% of the eyes. This improvement in visual acuity is comparable to that reported for clinically established benchtop systems.
Agreement between the three refraction components (M, J0, J45) provided by QuickSee and subjective refraction is within 0.5 D in more than 85 % of the cases.
This research suggests that QuickSee provides measurements that agree more closely with subjective refraction than other handheld autorefractors.
Agarwal A, Bloom DE, deLuise VP, Lubet A, Murali K, Sastry SM (2019) Comparing low-cost handheld autorefractors: A practical approach to measuring refraction in low-resource settings. PLoS ONE 14(10): e0219501.
Refractive error can be accurately measured using affordable and handheld devices
Pre-production QuickSee prototype outperformed Retinomax and Netra portable autorefractors
QuickSee was found most accurate compared to subjective refraction, and suitable for epidemiological screening and as a diagnostic tool
N. J. Durr, et al. “Design and Clinical Evaluation of a Handheld Wavefront Autorefractor” Optom. Vis. Sci., vol. 92, no. 12, pp. 1140–1147, Dec. 2015.
It is possible to build an autorefractor that is portable, affordable, and robust using low-cost components and no moving parts.
A prototype version of the QS technology is as accurate as a high-end commercial autorefractor in predicting refraction of an adult population
Durr NJ, Dave SR, Lim D, et al. Quality of eyeglass prescriptions from a low-cost wavefront autorefractor evaluated in rural India: results of a 708-participant field study. BMJ Open Ophthalmology 2019;4:e000225. doi:10.1136/ bmjophth-2018-000225
Eyeglass prescriptions can be accurately measured by a minimally trained technician using a low-cost wavefront autorefractor in rural India.
Data from 708 participants indicate a marginal difference in both prescription preference and resulting visual acuity between eyeglasses derived from subjective refraction versus QuickSee autorefraction (VA from QuickSee was on average only one eye chart letter worse).
Among the 438 participants 40 years old and younger, there was no statistically significant difference in the preferences for eyeglasses derived from subjective refraction versus QuickSee autorefraction.