16 - Vertical Imbalance at the Reading Level Flashcards
Practice examples of finding vertical imbalance + slab off needed in Spherocylindrical Prescription
If the eye is small and wants to appear larger what is the lens solution?
Use a plus sphere lens
If the eye is big and wants to appear smaller what is the lens solution?
Use a minus sphere lens
If the palpebral fissure of a non seeing eye is large/small how can we make it seem larger/smaller.
A plus or minus vertical or Horizontal cylinder can make it look larger/smaller depending on what way you want the eye to look is
If an eye has a scar that you want to hide how can we do that? 3
Use tinted lenses
avoid ar coatings
Use a minus lens to minify
To lower the apperance of an eye what do we do to the lens?
Use Base - up Prism
To raise the apperance of an eye what do we do to the lens?
Use Base - down Prism
If the eye is slanted whant can we do to the lens to make it appear straighter?
Rotate the plus cyl axis against the direction of the desired tilt
or
Rotate the minus cylinder axis with the direction of the desired tilt