Results 241 to 250 of about 1,072,264 (305)

Improving the diagnosis of central nervous system infections: experience with the off-label use of FA-BCID2. [PDF]

open access: yesMicrobiol Spectr
Menchinelli G   +5 more
europepmc   +1 more source

Laypeople's Perceptions of Clinician Performance Metrics Based on Cancer Screening Attendance.

open access: yesJAMA Health Forum
Scherer LD   +10 more
europepmc   +1 more source

The Slope of the Psychometric Function for Bailey-Lovie Letter Charts: Defocus Effects and Implications for Modeling Letter-By-Letter Scores

open access: yesOptometry and Vision Science, 2001
Background. Visual acuity measurement often results in an imprecise endpoint because subjects correctly identify some but not all of the letters on one or more size levels on a letter chart. The extent of this transition zone from seeing to nonseeing can be described by probit size, which is calculated by ...
Andrew Carkeet
exaly   +5 more sources

Low-Contrast Letter Charts as a Test of Visual Function

Ophthalmology, 1983
Visual pathway disorders can cause visual loss that is not detected by the Snellen test: visual sensitivity to coarse detail may be depressed, even when visual sensitivity to fine detail is unaffected. Sinewave grating test targets can detect such hidden visual loss. However, electronic apparatus for generating sinewave gratings is expensive, while the
D, Regan, D, Neima
exaly   +4 more sources

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