photorefraction
/ˌfəʊtəʊrɪˈfrakʃn/noun
1 Ophthalmology. Any of several methods of measuring the refraction or accommodation of the eye by photographic assessment of the pattern of light reflected back from the retina.
2 Materials Sci. The phenomenon exhibited by certain materials whereby their refractive index can be modulated by incident light, e.g. from a laser; variable refraction by a material with such properties.
Origin
1970s; earliest use found in Journal of the Optical Society of America. From photo- + refraction.
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