Apparatus and method for measuring differences in the transmission of light through a lens of an eye
作者： S. Fred Brunk
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摘要: The apparatus for measuring differences in the transmission of light through a lens an eye is chart has two main sections including test section that displays shade color and reference either spectrum shades, or different of, color. displayed box, projected on wall as hung wall. illuminated using constant variable intensity source. A patient required to find make match between shades disposed chart. When used, will be adjust it illuminates until made. may used conjunction with Snellen
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