ERG

Card Set Information

Author:
angelletta
ID:
112913
Filename:
ERG
Updated:
2011-10-28 22:24:37
Tags:
ERG
Folders:

Description:
Basic Retina
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  1. ERG evaluates
    mass response of retina from flash of light
  2. A WAVE EVALUATE
    B WAVE EVALUTES
    • A wave- OUTER RETINA
    • B wave- inner retina
  3. How much more sensitive is rod than cones
    1000
  4. FA mechanic describe process
    Color of light flashed in eye
    Color and purpose of first filter and wavelength
    What happens in the eye
    Color and purpose of 2nd filter and wavelength
    • white light
    • blue-allow only blue light in the eye 465-490
    • flourescene emit green light 520-530
    • yellow/green allow only blue green light out barrier to blue light
  5. FA timing
    AV transit time
    Early phase
    Late phase
    • 1st 15 sec
    • <30 sec
    • after 3 min
  6. Causes of autofluresence
    • optic nerve head drusen
    • astrocystic harmartoma

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