Lecture 4 Color Vision Flashcards
name the two types of color vision defects
congenital and acquired
School screening we are testing for which type of color vision deficiency? and what color type
congenital
red-green color deficiency
In clinical care do we screen for boys only?
no you screen both female and males
T/F in clinic you will check for color vision binocularly only
F. you do it monocularly
T/F color deficiency can be congenital or acquired
T
Color vision screening should be done (bi-annually/annually)
annually
Once you have a diagnosis of the color deficiency if any you want to check if it is (stable/changing)
both stable and/or changing
T/F only optometrist will diagnose patients with color vision defect
T
- Hypertension
- gluacoma
- stroke
- myopia
- diabetes
- photophobia
- cataracts
- optic nerve disease
–Pick five that will cause acquired color vision deficiency
cataract glaucoma diabetes stroke optic nerve disease
T/F optic nerve disease can quantify color vision deficiency
T
what disease is associated with optic neuritis (glaucoma/Multiple sclerosis/brain tumor)
multiple sclerosis
For the HRR test you need to be ___ inches away
A)40
B)30
C)50
30
which plates do you use to teach procedure what number?
1-4
for the HRR test are glasses on or off?
on
T/F lighing doesnt matter for the HRR test
F good lighting is needed for HRR
For the HRR test plates __to __ are used to test
5-10
If plate __ or __ is not correct which plates you test 21-24
A)4-5
B)3-4
C)5-6
5 or 6
When testing plates 5-10 it is a (bi/uni)lateral test
unilateral
If all 6 plates from 5-10 are correct what does that mean?
pt has normal color vision
Which is correct to record the HRR test?
A)OU 6/6 HRR
B)OD OS 6/6 HRR
C) OD 6/6 HRR and OS 6/6 HRR
OD 6/6 HRR
OS 6/6 HRR
If any are missed in plates 21-24 this indicates a (blue-yellow/ red-green) defect
blue-yellow
If any are missed in plates 11-20 this indicates a (blue-yellow/ red-green) defect
red-green
Plates can be repeated by rotating the book ___ degrees in the HRR test
90
If plate __ or __ is not correct which plates you test 11-20
A)4-5
B)21-24
C)7-10
7-10
You check the (correct/incorrect) responses on the scoring sheet of the HRR test
correct
T/F scattered errors found in the HRR test indicate patient likely malingering
T
T/F in the HRR sheet there it will only give you a diagnoses of type of color vision deficiency but not severity
F. it will also tell you whether it is mild, medium, strong
