Clinical evaluation of the Shin-Nippon SRW-5000 autorefractor in adults: an update.
OBJECTIVE
The Shin-Nippon SRW-5000 is an open view autorefractor that superseded the Canon R-1 autorefractor in the mid-1990 s and has been used widely in optometry and vision science laboratories. It has been used to measure refractive error, accommodation responses both statically and dynamically, off-axis refractive error, and adapted to measure pupil size. This paper presents an overview of the original 2001 clinical evaluation of the SRW-5000 in adults (Mallen et al., Ophthal Physiol Opt 2001; 21: 101) and provides an update on the use and modification of the instrument since the original publication.


RESULTS
The SRW-5000 instrument, and the family of devices which followed, have shown excellent validity, repeatability, and utility in clinical and research settings. The instruments have also shown great potential for increased research functionality following a number of modifications.


CONCLUSIONS
The SRW-5000 and its derivatives have been, and continue to be, of significant importance in our drive to understand myopia progression, myopia control techniques, and oculomotor function in human vision.
School of Optometry and Vision Science, University of Bradford, Bradford, UK.
Edward A H
EA
Mallen
Ophthalmic Research Group, Aston University, Aston Triangle, UK.
Bernard
B
Gilmartin
Ophthalmic Research Group, Aston University, Aston Triangle, UK.
James S
JS
Wolffsohn
Faculty of Science and Engineering, Kagoshima University, Kagoshima, Japan.
Sei-ichi
S
Tsujimura
D000065:Accommodation, Ocular / Q000502:physiology; D000328:Adult; D006801:Humans; D009216:Myopia / Q000503:physiopathology; D009907:Optometry / Q000295:instrumentation* / Q000379:methods; D012029:Refraction, Ocular / Q000502:physiology*; D012030:Refractive Errors / Q000175:diagnosis* / Q000503:physiopathology; D012031:Refractometry / Q000295:instrumentation*; D015203:Reproducibility of Results; D015351:Vision Screening / Q000295:instrumentation* / Q000379:methods
Grand Seiko; Shin-Nippon SRW-5000; accommodation measurement; open-view autorefractor