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Ophthalmic Dispensing – Questions With A+ Solutions
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Ophthalmic Dispensing – Questions With A+ Solutions
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Ophthalmic Dispensing – Questions With A+ SolutionsCombination Right Ans - Commonly has a metal chassis and plastic top
rims.
Semirimless Right Ans - Has two holes per lens and a metal reimforcing
arm that follows the upper posterior surface of the lens.
Numont Right Ans - Holds the lenses in place only at their nasal edge.
Half-eyes Right Ans - Made especially for those needing a reading
correction but no distance correction.
Balgrip Right Ans - Secures the lenses in place with clips attached to a bar
of tensile steel that fits into a slot on each side of lenses.
Nylon Cord Right Ans - Secures the lenses in place by means of a small
string that goes around the lens.
Optyl Right Ans - has memory
Lorgnettes Right Ans - hand held
"Shell" Right Ans - "zyl"
Convertible Right Ans - straightback
Earpiece Right Ans - curl
Riding bow Right Ans - type of temple that curves around the ear following
the crotch of the ear where the ear and head meet. Made of plastic, often used
on children's frames.
Modified saddle bridge Right Ans - follows the bridge of the nose smoothly,
spreading the weight of the frame and using nose pads attached to the back of
the bridge.
Cellulose accetate Right Ans - frame material that is generally made into
sheets and milled to make frames.
, Nylon Right Ans - a material of high flexibility that will maintain that
flexibility when soaked overnight periodically.
Carbon Fiber Right Ans - frame material that is lightwight, colors are
primarily opaque, can break in cold weather.
Polycarbonate Right Ans - Used primarily for sport or safety purposes.
Propionate Right Ans - material is heated until liquid, then injection
molded to the desired frame.
Polyamide Right Ans - a nylon-based material that can be made
translucent, not just opaque.
Optyl Right Ans - frame made from a liquid resin and a hardener that are
mixed together and drawn into frame molds using a vacuum process.
Stainless steel Right Ans - often used for temples because of its strength
and flexibility.
Titanium Right Ans - extremely light in weight and will not rust. can be
made thin
Aluminum Right Ans - lightweight and can be finished in a variety of colors
German Silver Right Ans - a synonym for nickle silver
Monel metal Right Ans - whitish in color, pliable, resist corrosion, accepts a
high polish.
Pure Nickel Right Ans - Resists Corrosion, malleable, accepts color well.
Certified 100% Titanium Right Ans - 90% titanium no nickel
Certified Beta Titanium Right Ans - 70% titanium no nickel
Frame Difference Right Ans - circular lens always zero, narrower the lens
the larger the difference
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