Optician NAO Book 1 – Questions Answered With
Expert Insights
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Terms in this set (30)
Medial retus muscle where is it? What Attached to the inside front of the eyeglobe and the
does it do? annulus of zinn at the back. It pulls the top of the eye
back and also towards the nose
Lateral retus muscle where is it? What Attached to the outside front of the eyeglobe and
does it do? the annulus of zinn at the back. It pulls the outside of
the front of the globe towards the back of the eye
socket
Three positions of the eye * Primary position: looking straight ahead
* Secondary position: looking exactly up and down
vertically and horizontally left or right
* Tertiary position: in between secondary position
up and in and down or out
Difference between adduction and Adduction: rotation towards your nose
abduction Abduction: rotation towards the temple
3 layers of tear film in order from Lipid, aqueous and mucin
outermost to innermost are _ , _ , and _
The layer of the tear film Thats Lipid
responsible for the prevention of
evaporation is the _ layer
The layer of the tear film that contains Aqueous
nutrients and antibiotic properties is
the _ layer
Expert Insights
Save Groups
Terms in this set (30)
Medial retus muscle where is it? What Attached to the inside front of the eyeglobe and the
does it do? annulus of zinn at the back. It pulls the top of the eye
back and also towards the nose
Lateral retus muscle where is it? What Attached to the outside front of the eyeglobe and
does it do? the annulus of zinn at the back. It pulls the outside of
the front of the globe towards the back of the eye
socket
Three positions of the eye * Primary position: looking straight ahead
* Secondary position: looking exactly up and down
vertically and horizontally left or right
* Tertiary position: in between secondary position
up and in and down or out
Difference between adduction and Adduction: rotation towards your nose
abduction Abduction: rotation towards the temple
3 layers of tear film in order from Lipid, aqueous and mucin
outermost to innermost are _ , _ , and _
The layer of the tear film Thats Lipid
responsible for the prevention of
evaporation is the _ layer
The layer of the tear film that contains Aqueous
nutrients and antibiotic properties is
the _ layer
