THE ABO & NCLE SECRET
This video surveys a common “theme” found within the ABO and NCLE examinations. It demonstrates the importance in understanding the 180 and 90 degree meridians.
We will look at:
The refractive medium of the eye
Prescription analysis
Transposition
Finding powers at various meridians
The optical cross
Decentration
Prentice’s Rule
Prism
Various astigmatism types
Essentially, I ramble-lecture for 30 some-odd minutes (Hopefully imparting foundational wisdom along the way!)