Final Midterm Flashcards
What is the order of the chain of vision?
Visual stimulus → light → media → focus → retina → nerves → brain → output
Chain of Vision: which of the following is only applicable to glasses?
focus
Chain of Vision: which of the following is linked if the patient has a stroke and their oculomotor system is impaired?
brain
What is the number 1 cause of vision impairment for patients under 65?
diabetic retinopathy
What is the number 1 cause of vision impairment for patients over 65
macular degeneration
Does Eyesight matter in LVR? (3 definitions)
fully sighted, partially sighted, legally blind
LogMAR & Charts Preview: What are the 10 components
- psychometric integrity
- test task equivalence
- acuity
4 seven factors in VA measurement - four distance types of VA
- weber’s law
- four factors in loglairvoyance
- four near nomenclature systems
- multiplicative identity
What is the optometry’s calling card of significant thinking?
psychometric integrity — say what we measure, and measure what we say
What is the optometry’s calling tool of significant measurement?
test task equivalence — when we have measurements, we can make adjustments based on WD and size
What is the useful definition of acuity?
sharpness of perception
What are 4 kinds of visual acuity?
detection — something is there! “Ah Ha!”
resolution —there is a gap! “Landolt C
recognition — i know what that is is! *Letters
vernier: Those lines are in line!
What is the standard for resolution acuity?
Landolt C
When does size matter?
Only when the distance is the same
What is the main factor in VA measurement?
angular subtense
The visual JND is used to create a paradigm of using VA measurements to predict the effects of changes in _____, ______, and _____.
working distance
dioptric lens power
telescopes power
