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Costco Optical ABO Prep Exam With Correct Solutions
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Costco Optical ABO Prep Exam With Correct Solutions...
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Costco Optical ABO Prep Exam With Correct SolutionsCostco Optical ABO Prep frame parts etc .
frame front/chassis combination of the eyewires and bridge temple arms pieces, which
hold the chassis to the head and ears. Temple tips plastic coverings, which cover the
ends of the temples over and behind the ears Bridge between the two lense piece that
goes above the nose Nose Pads
small pads designed to contact the nose and hold the frame up off the nose and away
from the face
Guard arms
small wire arms that actually hold the nose pad in place
eyewire
The rim of the frame that goes around the lenses.
End piece
the end piece is the area of the chassis that meets the temple or the point where the
temple attaches to the chassis
hinge
Hinge- The point at which the temple is attached to the chassis. The hinge allows the
temple to fold in and out. It is usually held by a scre, but maybe secured by a ball and
socket
Bevel-Bezel
The lens is secured in a groove in the eyewire, which is screwed down on top of the lens.
The technical description of the method of lens retention is "bevel – bezel." The edge of
the lens is cut with a bevel, or convex edge, that fits inside the eyewire bezel, which is a
groove in concave shape
Semi-rimless mounting
Usually screws are used to fix the lenses into position, along with a metal reinforcing
arm, which goes from the top back part of the lens, and connects the centerpiece with
the endpiece.
, Three-piece mount frame
Ideal for hyperopic patients; a frame composed of three pieces: two temples and one
bridge
PD Stick
common mm ruler used to measure pd and frame measurements
Boxing system
Measures a lens as it will be placed in the eye wire, and creates horizontal and vertical
lines tangent to farthest edges of the lens
A
The longest horizontal opening in the eyewire.
DBL
is the closest measurement between the two lenses
Distance between lens
ED
the effictive diameter of the eyewire opening which is used in determning lens cut-out in
finishing work
B
the longest vertical opening in the eyewire
A+DBL=
Frame PD
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