Clinical evaluation of the Grand Seiko Auto Ref/Keratometer WAM‐5500

Purpose:  A clinical evaluation of the Grand Seiko Auto Ref/Keratometer WAM‐5500 (Japan) was performed to evaluate validity and repeatability compared with non‐cycloplegic subjective refraction and Javal–Schiotz keratometry. An investigation into the dynamic recording capabilities of the instrument was also conducted.

[1]  Klaus Ehrmann,et al.  A review of peripheral refraction techniques. , 2009, Optometry and vision science : official publication of the American Academy of Optometry.

[2]  D. Mutti,et al.  Refractive error, axial length, and relative peripheral refractive error before and after the onset of myopia. , 2007, Investigative ophthalmology & visual science.

[3]  Adrian Glasser,et al.  Subjective and objective measurement of human accommodative amplitude , 2003, Journal of cataract and refractive surgery.

[4]  D. Altman,et al.  STATISTICAL METHODS FOR ASSESSING AGREEMENT BETWEEN TWO METHODS OF CLINICAL MEASUREMENT , 1986, The Lancet.

[5]  L. Graya,et al.  Accommodation microfluctuations and pupil size during sustained viewing of visual display terminals , 1999 .

[6]  J S Wolffsohn,et al.  Clinical evaluation of the Shin-Nippon SRW-5000 autorefractor in adults. , 2001, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[7]  C. Schor,et al.  The fluctuations of accommodation and ageing. , 1995, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[8]  L. Thibos,et al.  Power Vectors: An Application of Fourier Analysis to the Description and Statistical Analysis of Refractive Error , 1997, Optometry and vision science : official publication of the American Academy of Optometry.

[9]  David A. Atchison,et al.  Peripheral refraction along the horizontal and vertical visual fields in myopia , 2006, Vision Research.

[10]  K J Ciuffreda,et al.  Effect of surround propinquity on the open-loop accommodative response. , 1991, Investigative ophthalmology & visual science.

[11]  A. Beckett,et al.  AKUFO AND IBARAPA. , 1965, Lancet.

[12]  G. Jacobsen,et al.  Clinical evaluation of the Allergan Humphrey 500 autorefractor and the Nidek AR-1000 autorefractor. , 1996, The British journal of ophthalmology.

[13]  W N Charman,et al.  Fluctuations in accommodation: a review , 1988, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[14]  J. Cardell,et al.  CLINICAL REFRACTION , 1959 .

[15]  D. Spalton,et al.  Diagnostic accuracy and variability of autorefraction by the Tracey Visual Function Analyzer and the Shin‐Nippon NVision‐K 5001 in relation to subjective refraction , 2009, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[16]  Niall C Strang,et al.  Clinical evaluation of patient tolerance to autorefractor prescriptions , 1998, Clinical & experimental optometry.

[17]  M Millodot,et al.  Clinical evaluation of the Canon Autoref R-1. , 1985, American journal of optometry and physiological optics.

[18]  F Rempt,et al.  Acquired myopia in young pilots. , 1971, Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift fur Augenheilkunde.

[19]  L N Thibos,et al.  Relationship between acuity for gratings and for tumbling-E letters in peripheral vision. , 1999, Journal of the Optical Society of America. A, Optics, image science, and vision.

[20]  Bernard Gilmartin,et al.  Current perspective on microfluctuations of accommodation , 1992, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[21]  J R Pugh,et al.  Modification of the Canon Auto Ref R1 for use as a continuously recording infra‐red optometer , 1988, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[22]  Adrian Glasser,et al.  Objective Accommodation Measurement with the Grand Seiko and Hartinger Coincidence Refractometer , 2007, Optometry and vision science : official publication of the American Academy of Optometry.

[23]  T. Simpson,et al.  Repeatability and Accuracy of Automated Refraction: A Comparison of the Nikon NRK-8000, the Nidek AR-1000, and Subjective Refraction , 1997, Optometry and vision science : official publication of the American Academy of Optometry.

[24]  R E Fusaro,et al.  The Repeatability of Automated and Clinician Refraction , 1998, Optometry and vision science : official publication of the American Academy of Optometry.

[25]  Adrian Glasser,et al.  Restoration of accommodation: surgical options for correction of presbyopia , 2008, Clinical & experimental optometry.

[26]  D. Atchison,et al.  Pupil size, mean accommodation response and the fluctuations of accommodation , 1997, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[27]  Bernard Gilmartin,et al.  Accommodative microfluctuations and pupil diameter , 1993, Vision Research.

[28]  J S Wolffsohn,et al.  Simultaneous continuous recording of accommodation and pupil size using the modified Shin‐Nippon SRW‐5000 autorefractor , 2004, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[29]  J R Pugh,et al.  POWER SPECTRUM ANALYSIS IN THE STUDY OF OCULAR MECHANISMS , 1987, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[30]  Adrian Glasser,et al.  Accommodation measurements in a prepresbyopic and presbyopic population , 2004, Journal of cataract and refractive surgery.

[31]  G. Smith,et al.  The Accommodative Resting States, Instrument Accommodation and Their Measurement , 1983 .

[32]  J M Bland,et al.  Statistical methods for assessing agreement between two methods of clinical measurement , 1986 .

[33]  M Millodot,et al.  Effect of Ametropia on Peripheral Refraction , 1981, American journal of optometry and physiological optics.

[34]  Jane F. Koretz,et al.  Accommodation and presbyopia in the human eye—aging of the anterior segment , 1989, Vision Research.

[35]  N. Strang,et al.  Refractive group differences in accommodation microfluctuations with changing accommodation stimulus , 2006, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[36]  J. Wolffsohn,et al.  Clinical Evaluation of the Shin-Nippon NVision-K 5001/Grand Seiko WR-5100K Autorefractor , 2003, Optometry and vision science : official publication of the American Academy of Optometry.

[37]  Influence of accommodation and refractive status on the peripheral refractive profile , 2009, British Journal of Ophthalmology.

[38]  J S Wolffsohn,et al.  Continuous recording of accommodation and pupil size using the Shin-Nippon SRW-5000 autorefractor. , 2001, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.