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34 Cards in this Set

  • Front
  • Back
Resolution depends on ______.
If you hold the 20D lens closer than you are supposed to, the image will get ______.
If you use a 28D lens instead of a 20D lens-- where will you have to hold the lens?
Closer than with the 20 (thus a higher plus lens = closer)
What is an advantage to using a 28D lens vs. a 20D lens?
you get a bigger field of view
The fundus is the ____ of which the condensing lens forms the image.
The image, viewed by the examiner is ___ and _____.
real and aerial
If the image is perverted, what does this mean?
real, inverted, and reversed
Lower power lenses give you ____ magnification and _____ field?
greater, less
Lower power lenses _____ the stereo separation.
What are some landmarks in the periphery?
1- vortex veins
2- long ciliary nerves
3- short ciliary nerves
What landmarks are in the post. pole?
1- ONH
2- macula
3- arcades
What does the vortex vein ampulla do?
it is the drainage of the choroid
The long ciliary nerves are located at ___ and ___- (clock hours).
9:00 and 3:00
The short ciliary nerves are different from the Long ciliary nerves is what way? and-- they are located at ___ and ___. (clock hours)
the short nerves straddle the vertical bysecting line and are located at 12 and 6.
What is a quick way to figure out the focal length of a lens in inches?
40/D (D is the power of the lens in question)
What does the ciliary body look like? why?
meat, b/c it is muscle~
The ___ side of the lens faces the patient.
T or F: the prism induced in the 20D lens(or any lens used) is needed to see the periphery.
Keep the oculars _______ to the eyes as possible.
as close to
When doing BIO make sure that both eyes see the _____ thing.
T or F: where ever the patient is looking--that is where you are examining.
To start BIO, hold the condensing lens ____ away from the patients eye.
2 inches
To view the superior temporal portion of the patients right eye, have them look ______.
up and left (IS THIS CORRECT--it is from the notes??)
To view the maximum periphery, the clincian is always positioned _______.
180 degrees from the direction of gaze.
THe clincians eye should be about ______ inches from the condensing lens.
18-20 inches
_____ retina disorders generally manifest blood/exudate.
____ retina disorders generally appear with pigment.
How can you decide if the lesion is retina or choroid?
Retina remains with red-free!!
Melanin in the RPE will absorb the red-free light, therefore, objects _______ are thus not illuminated.
Move _____ what you wamt to see.
T or F: document your findings in the chart JUST as they are in the eye. (not like you saw them)
If you see a blury image, you are too _____ to the patient.
If you have vertical diplopia, the BIO housing is probably ________.
What are 3 reasons why you may have horizontal diplopia?
1- you are too close to the patient
2- the IPD of the BIO is not right
3- you have insufficient fusional vergence reserves