Photorefraction of the Eye

Autor/inn/en	Colicchia, Giuseppe; Wiesner, Hartmut; Zollman, Dean
Titel	Photorefraction of the Eye
Quelle	In: Physics Teacher, 53 (2015) 2, S.103-105 (3 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0031-921X
DOI	10.1119/1.4905810
Schlagwörter	Light; Optics; Human Body; Science Instruction; Photography; Handheld Devices; Scientific Concepts; Concept Formation + Suchen Sie Ihr Suchwort? Licht; Optik; Menschlicher Körper; Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht; Fotografie; Concept learning; Begriffsbildung
Abstract	Photorefraction is a method to easily estimate the refractive state of the eye. The principle of photorefraction involves projecting light into the eye during flash photography and then examining the paths of light that emerge from the pupil after scattering on the back portion of the interior of the eyeball (fundus). We will explain the optical principles underlying the method for eccentric photorefraction and describe how students can perform it using current digital cameras. Our purpose is not to diagnose refractive errors reliably, but to use devices popular among young people that, in combination with an important ophthalmic context, may be successful in improving students' interest for learning optical concepts. (As Provided).
Anmerkungen	American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; e-mail: pubs@aapt.org; Web site: http://scitation.aip.org/tpt
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01