The streak retinoscopy pupil reflex in the presence of astigmatism

Smith, G. and Haymes, S. 2003, The streak retinoscopy pupil reflex in the presence of astigmatism, Ophthalmic and physiological optics, vol. 23, no. 4, pp. 295-305, doi: 10.1046/j.1475-1313.2003.00119.x.

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Title The streak retinoscopy pupil reflex in the presence of astigmatism
Author(s) Smith, G.
Haymes, S.
Journal name Ophthalmic and physiological optics
Volume number 23
Issue number 4
Start page 295
End page 305
Total pages 11
Publisher Wiley - Blackwell Publishing
Place of publication Oxford, England
Publication date 2003-07
ISSN 0275-5408
Keyword(s) astigmatism
computer simulation
pupil reflex
streak retinoscopy
Summary Computer simulation is being increasingly used as a teaching tool. Having developed a computer-generated virtual focimeter, we are now in the process of developing a computer-generated virtual streak retinoscope to teach the principles of retinoscopy and the effect of residual refractive error and mirror movement on the pupil reflex. One of the important requirements was to provide as accurate a simulation as possible for the completely general case of an astigmatic patient and a streak in any orientation being moved also in any orientation. This required a thorough understanding of the optical theory of the retinoscope and equations that describe the behaviour of the pupil reflex. We have taken this opportunity to review the optics of the streak retinoscope and derive equations for the behaviour of the pupil streak reflex.
Language eng
DOI 10.1046/j.1475-1313.2003.00119.x
Field of Research 119999 Medical and Health Sciences not elsewhere classified
Socio Economic Objective 970111 Expanding Knowledge in the Medical and Health Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2003, The College of Optometrists 295
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Document type: Journal Article
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