Visual Acuity Testing - Tumbling E's chart (pre-literate children, people not familiar with Latin alphabet)

Visual Acuity Testing - Tumbling E's chart (pre-literate children, people not familiar with Latin alphabet)

Humphrey Visual Field Analyser

Humphrey Visual Field Analyser

Chapter 12: Neural Tissue - comparison of graded potentials and action potentials

Chapter 12: Neural Tissue - comparison of graded potentials and action potentials

Figure 2  Various tympanograms.  Figure 2B depicts a completely flat tracing with low ear canal volume, indicating partial ear canal occlusion with cerumen or improper placement of the probe.Figure 2C depicts a type B curve with a high measured volume. In the presence of a perforation of the tympanic membrane or a patent tympanostomy tube, acoustic energy also will be absorbed by air in the middle ear and possibly mastoid air cells, resulting in a higher than normal volume detected.32…

Figure 2 Various tympanograms. Figure 2B depicts a completely flat tracing with low ear canal volume, indicating partial ear canal occlusion with cerumen or improper placement of the probe.Figure 2C depicts a type B curve with a high measured volume. In the presence of a perforation of the tympanic membrane or a patent tympanostomy tube, acoustic energy also will be absorbed by air in the middle ear and possibly mastoid air cells, resulting in a higher than normal volume detected.32…

Blog of a student audiologist

Blog of a student audiologist

Nonlinearity with outer hair cells.  (Without healthy outer hair cells, the output is linear.) http://147.162.36.50/cochlea/cochleapages/theory/nonlin/nonlin.htm#inout

Nonlinearity with outer hair cells. (Without healthy outer hair cells, the output is linear.) http://147.162.36.50/cochlea/cochleapages/theory/nonlin/nonlin.htm#inout

Tympanometry Beyond 226 Hz - What's Different in Babies? Michelle R. Petrak Hearing Eval/Screen - Children/Special Pop Pediatrics 1148

Tympanometry Beyond 226 Hz - What's Different in Babies? Michelle R. Petrak Hearing Eval/Screen - Children/Special Pop Pediatrics 1148

Logmar chart for visual acuity

Logmar chart for visual acuity

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