a. Bending temples down
b. Bending temples up
c. Angling temples out
d. Curving temples round the top - ANS-d. Curving temples round the top
A _____________ has spring-loaded retractable jaws for holding small screws in the
screwdriver till they seize the threads within the barrel.
A. Bevel motive force
b. Screw extractor
c. Pick-up screwdriver
d. Pillar report - ANS-c. Choose-up screwdriver
A _________________ distributes the weight of the body over the nostril pad area and the crest
of the nostril.
A. Endpiece
b. Strap bridge
c. Crest
d. Bevel - ANS-b. Strap bridge
A +3.00D lens has a +7.25D base curve. The ocular floor electricity is:
a. +3.00D
b. -4.25D
c. -3.00D
d. -7.25D - ANS-b. -4.25D
A 6.0013 floor measured with a lens clock has a radius of curvature of:
a. 60 mm
b. 98.6 mm
c. 53 mm
d. 88.Three mm - ANS-d. 88.Three mm
A bridge design frequently determined on plastic frames that is meant to observe the bridge of
the nose easily, spreading the burden of the frame calmly over the sides and crest of the nose is
the:
a. Saddle bridge
b. Keyhole bridge
c. Comfort bridge
,d. Strap bridge - ANS-a. Saddle bridge
A bridge design regularly found on plastic frames that rests on the perimeters of the nose but no
longer on the crest is the:
a. Saddle bridge
b. Keyhole bridge
c. Comfort bridge
d. Strap bridge - ANS-b. Keyhole bridge
A function maximum single imaginative and prescient CR-39 lens series have in commonplace
is:
a. Plus cylinder form
b. A square molded form
c. Minus cylinder shape
d. Minus base curves - ANS-c. Minus cylinder form
A characteristic of a plus cylinder is:
a. Parallel rays of light are brought to a degree consciousness in the back of lens
b. Gadgets seen via it are magnified similarly in all meridians
c. Crossed strains have a scissors movement when lens is turned around
d. Lens is thinner in the center than on the rims - ANS-c. Crossed strains have a scissors motion
while lens is rotated
A clear plastic one-piece bridge strap that is connected to the nosepad fingers of a steel frame,
replacing the two man or woman pads, is called a:
a. Saddle bridge
b. Keyhole bridge
c. Consolation bridge
d. Strap bridge - ANS-d. Strap bridge
A clean plastic saddle-kind bridge this is connected to a metallic body, where there are no
nosepad fingers, is a:
a. Saddle bridge
b. Keyhole bridge
c. Comfort bridge
d. Strap bridge - ANS-c. Consolation bridge
A clean spectacle crown lens loses approximately transmittance due to mirrored image:
a. 10%
b. 8%
c. 12%
d. 6% - ANS-b. 8%
A mixture body is a:
,a. Frame which includes contrasting shades
b. Metallic body and plastic lenses
c. Frame utilized in combination with bifocal and trifocal lenses handiest
d. Frame having foremost parts of plastic creation and a number of metal - ANS-d. Frame
having predominant elements of plastic creation and a number of steel
A concave replicate:
a. Can recognition parallel incident rays to shape a real photo
b. Can awareness parallel incident rays to shape a digital image
c. Always produces inverted images of actual objects
d. Produces virtual snap shots smaller than the actual item - ANS-a. Can recognition parallel
incident rays to shape a real photograph
A condition of sympathetic paralysis of Muller's muscle within the upper lid necessitates the use
of a:
a. Lenticular panoptik
b. Stenopaic spectacle
c. Slit glasses with occluders
d. Ptosis crutch spectacle - ANS-d. Ptosis crutch spectacle
A accurate declaration regarding the law of refraction is that:
a. Light bends far from the regular whilst it enters a medium denser than the one in which it
turned into travelling
b. Mild bends toward the ordinary when it enters a medium denser than the one in which it
changed into touring
c. The attitude of refraction is equal to the attitude of prevalence
d. The attitude of refraction and the angle of occurrence lie in exclusive planes - ANS-b. Mild
bends closer to the normal when it enters a medium denser than the only wherein it turned into
journeying
A corrected curve lens is a lens:
a. That has the the front curve compensated for the thickness
b. That has decreased chromatic aberration
c. That has a base curve selected to lessen peripheral power errors
d. With aspheric surfaces - ANS-c. That has a base curve chosen to lessen peripheral power
mistakes
A correctly fit cable temple has the tip of the temple placed:
a. At the decrease lobe of the ear
b. Slightly beyond the decrease lobe of the ear
c. Simply brief of the lower lobe of the ear - ANS-c. Just quick of the lower lobe of the ear
A pass curve is:
, a. The simplest curve on a lens
b. The stronger curve of a toric lens surface
c. Another term for base curve
d. A peripheral curve - ANS-b. The stronger curve of a toric lens surface
A cutting plier is used while:
a. Adjusting temples
b. Adjusting pad palms
c. Reducing off the ends of glass screws
d. Punching out endpiece screws - ANS-c. Slicing off the ends of glass screws
A body marking of 50 △ 20 manner the:
a. Body is marked consistent with the boxing gadget
b. Frame is marked according to the datum device
c. Datum line is 20 mm
d. Datum has a distinction of 20 - ANS-a. Body is marked in keeping with boxing gadget
A frame cloth that is crafted from iron and chrome, is pretty resistant to corrosion, and has an
detail of flexibility that makes it well desirable for temples is:
a. Chrome steel
b. Titanium
c. Nickel silvers
d. Gold - ANS-a. Chrome steel
A frame with box measurements of A = 55mm, B = 46mm, and a DBL = 22mm has segments
located 17mm excessive in the eyewire. Measured from the horizontal centerline (Datum-line) of
the lens, the pinnacle of the bifocal can be:
a. 5mm underneath
b. 6mm beneath
c. 10.5mm under
d. 11mm beneath - ANS-b. 6mm underneath
A FT trifocal is measured with the pinnacle of the:
a. Intermediate on the decrease pupil margin
b. Near segment at the lower lid margin
c. Intermediate section one mm under the student margin
d. Close to phase at the superior limbus - ANS-c. Intermediate segment one mm beneath the
scholar margin
A keyhole bridge:
a. Is great used with huge, flat bridges
b. Distributes weight handiest on the edges
c. Distributes weight simplest on the top
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