Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
20 Cards in this Set
- Front
- Back
Rapid adaptation |
Lenses are easily adapted to and can be worn 8-12 hrs within a week |
|
Palpebral fissure |
Space of lid opening in the vertical meridian |
|
Silicone acrylate |
Silicone material used to make hard contacts more gas permeable |
|
Visual astigmatism |
The dioptric power in the cylinder of the prescription |
|
Corneal astigmatism |
The difference of the two curves or the K readings of the cornea |
|
Residual astigmatism |
The amount of astigmatism left over in the eye after corneal astigmatism has been corrected |
|
CPC |
Central posterior curve Aka base curve |
|
IPC |
Intermediate posterior curve |
|
PPC |
Peripheral posterior curve |
|
OZ |
Optical zone, where the power of the lens is located |
|
Overall diameter |
The measurement in mm from the edge to the opposite edge of a contact lens |
|
Piggy back method |
A soft lens on the cornea with a hard lens riding on the soft lens |
|
Exophthalmos Exo/ph/thal/mos |
Portusion of the eyeball associated with graves disease or hyperthyroid |
|
Lid attachment lens |
A larger flatter lens that sits under the superior lid, 8.5-10.5mm |
|
Halos |
A glowing around lights due to corneal edema |
|
DMV Device |
A small suction cup used to help remove hard contact lenses |
|
Punctum |
Small tear drainage hole in the medial lower lid |
|
Viscosity |
Refers to the thickness and lubrication of drops or medications |
|
Asepsis |
Absence of bacteria |
|
Pseudomonas aeruginosa Pse/udo/monas Aer/ug/inosa |
Microorganism found in the saliva that can cause blindness. |