Measuring the eye Flashcards
1
Q
What are the advantages of using OCT A-scans to measure axial length?
A
More accurate than ultrasound - highly reproducible
Non-contact
Can be delegated
Px compliance minimal
Takes many other measurements too (corneal radius, AC depth, HVID)
2
Q
Where does ultrasound measure from and to when measuring axial length?
A
Corneal vertex to retinal membrane
3
Q
Where do OCT A-scans measure from and to when measuring axial length?
A
Corneal vertex to RPE (correction made to measure to retinal membrane)
