title: Problem of double pass recording using infrared light.
authors.forename: Thomas J T P
authors.initials: TJ
authors.lastname: van den Berg
mesh_terms: D015350:Contrast Sensitivity; D057108:Corneal Wavefront Aberration / Q000175:diagnosis*; D003941:Diagnostic Techniques, Ophthalmological / Q000592:standards*; D005260:Female; D006801:Humans; D008297:Male; D009907:Optometry / Q000592:standards*