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;
21 Cards in this Set
- Front
- Back
|
Wetting angle |
The angle a bead of liquid makes with the surface of a lens |
|
|
Spherical lens |
A lens with only one curve on the front and one curve on the back |
|
|
Front toric |
A lens with 2 curves on the anterior surface and one on the back |
|
|
Back toric |
A lens with 2 curves on the posterior surface and one on the front |
|
|
Bitoric |
A lens with 2 curves on the anterior and posterior surfaces |
|
|
Wetting solution |
Designed to temporarily change a hydrophobic surface to a hydrophilic |
|
|
Warpage |
Permanent bending of a rigid lens |
|
|
Corneal cap |
Central zone of cornea. 3-5 mm in diameter |
|
|
Apical zone of cornea |
Central steepest part of the cornea |
|
|
Contact lens blank |
Sheet or rod of plastic used to make contact lenses |
|
|
Base curve |
Central back surface of a lens |
|
|
Bicurve lens |
A lens having one peripheral curve around the base curve |
|
|
Tricurve lens |
A lens having 2 peripheral curves around the base curve |
|
|
Junctional zone |
Where the base curve and the peripheral curves meet |
|
|
Blend |
Smoothing of the junctional zones |
|
|
Radiuscope |
Instrument used to measure base curve of a hard contact |
|
|
V groove gauge |
Plastic ruler to measure lens diameter |
|
|
Shadow graph |
Lens inspection device for examining lens periphery and diameter |
|
|
Polymethlymethacrylate |
Original main ingredient in hard contacts lens |
|
|
J |
J |
|
|
Artificial tears |
Wetting agents for the cornea |
