Quiz 3 Flashcards
According to the Boxing System diagram shown, identify the following classification for number 5:
GC (Geometric Center)
A frame with a “Hibo” classification is constructed with the endpieces:
at the upper part of the frame
A “Library temple curls around the ear and is commonly used for sports.
False
The limbal measurement may be used as a reference point in taking monocular PDs.
False
Cellulose Acetate is not used anymore because of its high fmallability rate
False
Polyamide is a lighweight, durable frame material that is a blend of nylon.
True
A Saddle Bridge follows the bridge of the nose smoothly, spreading the weight of the frame.
True
A frame with a “fulvue” classification is constructed with the endpieces:
at the very top of the frame
A “Convertable” temple is designed to convert the library design that can be converted into the skull design
True
A frame with a “regular, or on-line” classification is constructed with the endpieces
at the middle (mid-line) of the frame
At what angle is the endpiece classification as “butt end” style cut?
90 degree angle (flat)
According to the Boxing System diagram shown, identify the following classification for number 4:
Datum Line
According to the Boxing System diagram shown, identify the following classification for number 3:
B
The corneal reflection method is the most accurate way to measure a PD.
True
According to the Boxing System diagram shown, identify the following classification for number 7:
ED (Effective Diameter)
A “semi-rimless” frame is one with no frame attached at all, and must be put together with the lenses using the pieces (mounting/chassis) provided in a bag.
False
“IPD” stands for Interpupillary Distance and is the patient’s PD
True
Cellulose Nitrate was replaced with Cellulose Acetate due to the explosive nature of cellulose nitrate.
True
All gold frames must be classified as 12k, etc, regardless if the frame is pure gold, rolled gold, or gold electroplate
False: rolled and plated do not need to be marked.
Cellulose Propionate is a high tech, light weight material that is made by Injection Molding.
True
We measure hte patient’s PD so that we can line up the lens optical center with the eye’s
visual axis
Titanium is a corrosion resistant metal that is lighter and stronger than stainless steel.
True
Riding bow temples are practically straight and hold hte glasses on primarily by pressure against the head
False
At what angle is the endpiece classified as “mitre style cut”?
45 degree angle (oblique)
Kevlar is a high tech material primarily used in frame components
True
