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Scholar Results 1 - 10 of about 101 related to Hunt: Evaluation of the measurement of refractive error by the PowerRefractor: a remote,.... (0.20 sec) 

Evaluation of the measurement of refractive error by the PowerRefractor: a remote, …

- nih.gov
OA Hunt, JS Wolffsohn, B Gilmartin - British Journal of Ophthalmology, 2003 - bjo.bmj.com
Background/aim: The technique of photoretinoscopy is unique in being able to
measure the dynamics of the oculomotor system (ocular accommodation, vergence,
and pupil size) remotely (working distance typically 1 metre) and ...
Cited by 31 - Related articles - BL Direct - All 8 versions

Continuous measurement of accommodation in human factor applications


JS Wolffsohn, OA Hunt, B Gilmartin - Ophthalmic and Physiological Optics, 2002 - interscience.wiley.com
It has long been sought to measure ocular accommodation continuously in human
factor applications such as driving or flying. Open-field autorefractors such as
the Canon R-1 could be converted to allow continuous, objective recording, ...
Cited by 19 - Related articles - BL Direct - All 5 versions

[PDF] Measurement of refractive error and accommodation with the photorefractor PowerRef II


S Jainta, W Jaschinski, J Hoormann - Ophthalmic and Physiological Optics, 2004 - pediavision.com
Abstract The infrared photorefractor PowerRef II (PR II; PlusoptiX AG,
Nürnberg, Germany) uses the principle of eccentric photorefraction. In eight
subjects the mean non-cycloplegic refraction measured with the ÔFull ...
Cited by 11 - Related articles - View as HTML - BL Direct - All 4 versions

Repeatability and validity of the PowerRefractor and the Nidek AR600-A in an adult …


PM Allen, H Radhakrishnan, DJ O'LEARY - Optometry & Vision Science, 2003 - journals.lww.com
We assessed the repeatability and validity of the PowerRefractor and the Nidek
AR-600A autorefractor. This is the first independent study conducted on adults
to evaluate the performance of these instruments in a laboratory setting. ...
Cited by 41 - Related articles - BL Direct - All 4 versions

Laboratory, clinical, and kindergarten test of a new eccentric infrared photorefractor ( …


M Choi, S Weiss, F Schaeffel, A Seidemann, … - Optometry & Vision Science, 2000 - journals.lww.com
Cited Here...: In a laboratory study of 15 student subjects without the use of
cycloplegia (30 eyes, refractive errors ranging from -6 D to +6 D), age 25 to 31
years, the photorefractive measurements were compared with spectacle ...
Cited by 75 - Related articles - BL Direct - All 5 versions

Clinical evaluation of an eccentric infrared photorefractor: the PowerRefractor


M Abrahamsson, J Ohlsson, M Bjorndahl, H … - Acta Ophthalmologica Scandinavica, 2003 - interscience.wiley.com
It is also possible that your web browser is not configured or not able to
display style sheets. In this case, although the visual presentation will be
degraded, the site should continue to be functional. We recommend using the ...
Cited by 14 - Related articles - BL Direct - All 5 versions

Accuracy of a new photorefractometer in young and adult patients


T Schimitzek, WA Lagreze - Graefe's Archive for Clinical and Experimental …, 2005 - Springer
Abstract Background: Photorefrac- tion can be carried out in both eyes
simultaneously from a distance and is therefore suitable for examination of
children. This study evaluated the accuracy of a commercially available ...
Cited by 11 - Related articles - All 2 versions

An evaluation of the lag of accommodation using photorefraction


A Seidemann, F Schaeffel - Vision Research, 2003 - Elsevier
Methods. Particular care was taken to ensure correct calibration of the
instrument. Ten young adult subjects were refracted both in the fixation axis of
the right eye and from the midline between both eyes, while they read text ...
Cited by 30 - Related articles - All 4 versions

Efficiency of a video-autorefractometer used as a screening device for amblyogenic factors


T Schimitzek, W Haase - Graefe's Archive for Clinical and Experimental …, 2002 - Springer
Abstract Background: High ame- tropia is known as a risk factor in developing
amblyopia. The aim of the study was to evaluate the effi- ciency of a
commercially available infrared videorefractometer (Power- Refractor) in ...
Cited by 19 - Related articles - BL Direct - All 4 versions

Validation of the PowerRefractor for measuring human infant refraction


PJ BLADE, TR CANDY - Optometry and vision science: official publication of …, 2006 - pubmedcentral.nih.gov
Eccentric photorefraction provides an opportunity to gather rapid and remote
estimates of refraction and gaze position from infants. The technique has the
potential for extensive use in vision screenings and studies of visual ...
Cited by 11 - Related articles - BL Direct - All 6 versions


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