TY - JOUR
T1 - Clinical evaluation of the Shin-Nippon SRW-5000 autorefractor in adults
AU - Mallen, E.A.H.
AU - Wolffsohn, J.S.
AU - Gilmartin, B.
AU - Tsujimura, S.
PY - 2001/3
Y1 - 2001/3
N2 - A clinical evaluation of the Shin-Nippon SRW-5000 (Japan), a newly released commercial autorefractor, was undertaken to assess its repeatability and validity compared to subjective refraction. Measurements of refractive error were performed on 200 eyes of 100 subjects (aged 24.4±8.0 years) subjectively (non-cycloplegic) by one optometrist and objectively with the SRW-5000 autorefractor by a second. Repeatability was assessed by examining the differences between the seven autorefractor readings taken from each eye and by re-measuring the objective prescription of 50 eyes at a subsequent session. Although the SRW-5000 read slightly more plus than subjective refraction (mean spherical equivalent +0.16±0.44D), it was found to be highly valid (accurate) compared to subjective refraction and repeatable over the prescription range of +6.50 to -15.00D examined. The Shin-Nippon SRW-5000 autorefractor is therefore a valuable complement to subjective refraction and as it offers the advantage of a binocular open field-of-view, has a great potential benefit for accommodation research studies. Copyright © 2001 The College of Optometrists.
AB - A clinical evaluation of the Shin-Nippon SRW-5000 (Japan), a newly released commercial autorefractor, was undertaken to assess its repeatability and validity compared to subjective refraction. Measurements of refractive error were performed on 200 eyes of 100 subjects (aged 24.4±8.0 years) subjectively (non-cycloplegic) by one optometrist and objectively with the SRW-5000 autorefractor by a second. Repeatability was assessed by examining the differences between the seven autorefractor readings taken from each eye and by re-measuring the objective prescription of 50 eyes at a subsequent session. Although the SRW-5000 read slightly more plus than subjective refraction (mean spherical equivalent +0.16±0.44D), it was found to be highly valid (accurate) compared to subjective refraction and repeatable over the prescription range of +6.50 to -15.00D examined. The Shin-Nippon SRW-5000 autorefractor is therefore a valuable complement to subjective refraction and as it offers the advantage of a binocular open field-of-view, has a great potential benefit for accommodation research studies. Copyright © 2001 The College of Optometrists.
UR - http://www.scopus.com/inward/record.url?scp=0035147335&partnerID=8YFLogxK
UR - http://onlinelibrary.wiley.com/doi/10.1046/j.1475-1313.2001.00585.x/abstract
U2 - 10.1046/j.1475-1313.2001.00585.x
DO - 10.1046/j.1475-1313.2001.00585.x
M3 - Article
C2 - 11261343
SN - 0275-5408
VL - 21
SP - 101
EP - 107
JO - Ophthalmic and Physiological Optics
JF - Ophthalmic and Physiological Optics
IS - 2
ER -