ABO PRACTICAL EXAMS SCRIPT QUESTIONS AND
SOLUTIONS MARKED A+
✔✔Lensmeter - ✔✔is an ophthalmic instrument. It is mainly used by optometrists and
opticians to verify the correct prescription in a pair of eyeglasses, to properly orient and
mark uncut lenses, and to confirm the correct mounting of lenses in spectacle frames.
(also known as a focimeter or vertometer)
✔✔Lens Measurement Devices - ✔✔lens clock, calipers, millimeter ruler, circumference
gauge
✔✔Lens Clock - ✔✔is used to measure the surface powers base curve of a lens
✔✔Lens Calipers - ✔✔Measures thickness of lenses in mm
✔✔Millimeter ruler - ✔✔measures interpupillary distance, or seg heights, or OC heights
✔✔Circumference gauge - ✔✔For quick and accurate measurements of lenses or
patterns.
✔✔Corneal reflex Pupilometer - ✔✔for precisely measuring and digitally recording
pupillary distances. Used for measuring of monocular and binocular
✔✔Hand Tools - ✔✔Screwdrivers, needle-nose pliers, tweezers, files
✔✔scratchless screwdriver - ✔✔for working on drill mount or facetted lenses
✔✔pickup screwdriver - ✔✔jaws with spring tension to hold screws while you put them
in place, available with either type blade
✔✔Big Brass screwdriver - ✔✔unscrew most screw, with a large brass handle
✔✔plastic top screwdriver - ✔✔most popular and most dangerous
✔✔Pad Popper - ✔✔used to remove snap-in nosepads without changing the alignment
of the adjustable guard arms. the prongs are inserted behind the nosepad and in front of
the nosepad box. a simple twist removes the pad
✔✔Rimless mounting tool - ✔✔the hook is started at the hinge side of the nylon line that
pulls around the lens. use caution, easy to chip lens
✔✔eyewire sizing pliers - ✔✔used to check the size of the lens without damaging the
barrels of the frame
, ✔✔lens axis pliers - ✔✔allow you to turn the lens to adjust the axis while it is mounted
in the frame
✔✔Flat/round Nose Pliers - ✔✔used to change the curvature of pad arm loops.
positioned so the loop is bent around the round tip
✔✔Nylon Jaw flat/round nose pliers or Half-padded pliers - ✔✔they are used to protect
the finish of metal frames during adjustments. nylon side should be positioned against
the visible part of the frame
✔✔Numont pliers - ✔✔used to hold eyewires of numont and nylon suspension frames
during adjustment. you may also find them useful in adjusting the end pieces of narrow
metal frames
✔✔chappel cutting pliers - ✔✔he Chappel Cutting Plier cuts screw assemblies and
reduces the risk of damaging lenses
✔✔oblique cutting plier - ✔✔tips of these pliers taper to a 45 degree angle allowing you
to get into small spaces
✔✔B& L style adjusting pliers - ✔✔flat arm will work with pads whose mountings are
flush against the pad
✔✔European pad adjusting pliers - ✔✔designed specifically for screw and snap in type
nosepad adjustment. box shaped indentation fits around the nosepad box. opposite jaw
is curved to mimic the shape of the pad itself. curved arm is padded tp protect the pads
when working with soft silicone pads
✔✔temple angling pliers - ✔✔variety of jaw depths.used for adjusting the temples at
hinge
✔✔Nylon Eyewire forming pliers - ✔✔designed to form the eyewire of a metal frame to
the curvature of the lens. can be used to curve the temple of the frame
✔✔Nylon Jaw adjusting pliers - ✔✔especially good for adjusting metal frames and not
marring the frame. great for two plier adjustments
✔✔Tweezers - ✔✔great for working with tiny screws. useful for guiding nylon string (aka
fishing line0 through small holes. available in different tip styles and grooves
✔✔self-closing tweezers - ✔✔holds screws perpendicular to the tweezer body, works
well on nose pad screws
✔✔Zyl File - ✔✔Used to file plastic frames, good for rapid removal of material
SOLUTIONS MARKED A+
✔✔Lensmeter - ✔✔is an ophthalmic instrument. It is mainly used by optometrists and
opticians to verify the correct prescription in a pair of eyeglasses, to properly orient and
mark uncut lenses, and to confirm the correct mounting of lenses in spectacle frames.
(also known as a focimeter or vertometer)
✔✔Lens Measurement Devices - ✔✔lens clock, calipers, millimeter ruler, circumference
gauge
✔✔Lens Clock - ✔✔is used to measure the surface powers base curve of a lens
✔✔Lens Calipers - ✔✔Measures thickness of lenses in mm
✔✔Millimeter ruler - ✔✔measures interpupillary distance, or seg heights, or OC heights
✔✔Circumference gauge - ✔✔For quick and accurate measurements of lenses or
patterns.
✔✔Corneal reflex Pupilometer - ✔✔for precisely measuring and digitally recording
pupillary distances. Used for measuring of monocular and binocular
✔✔Hand Tools - ✔✔Screwdrivers, needle-nose pliers, tweezers, files
✔✔scratchless screwdriver - ✔✔for working on drill mount or facetted lenses
✔✔pickup screwdriver - ✔✔jaws with spring tension to hold screws while you put them
in place, available with either type blade
✔✔Big Brass screwdriver - ✔✔unscrew most screw, with a large brass handle
✔✔plastic top screwdriver - ✔✔most popular and most dangerous
✔✔Pad Popper - ✔✔used to remove snap-in nosepads without changing the alignment
of the adjustable guard arms. the prongs are inserted behind the nosepad and in front of
the nosepad box. a simple twist removes the pad
✔✔Rimless mounting tool - ✔✔the hook is started at the hinge side of the nylon line that
pulls around the lens. use caution, easy to chip lens
✔✔eyewire sizing pliers - ✔✔used to check the size of the lens without damaging the
barrels of the frame
, ✔✔lens axis pliers - ✔✔allow you to turn the lens to adjust the axis while it is mounted
in the frame
✔✔Flat/round Nose Pliers - ✔✔used to change the curvature of pad arm loops.
positioned so the loop is bent around the round tip
✔✔Nylon Jaw flat/round nose pliers or Half-padded pliers - ✔✔they are used to protect
the finish of metal frames during adjustments. nylon side should be positioned against
the visible part of the frame
✔✔Numont pliers - ✔✔used to hold eyewires of numont and nylon suspension frames
during adjustment. you may also find them useful in adjusting the end pieces of narrow
metal frames
✔✔chappel cutting pliers - ✔✔he Chappel Cutting Plier cuts screw assemblies and
reduces the risk of damaging lenses
✔✔oblique cutting plier - ✔✔tips of these pliers taper to a 45 degree angle allowing you
to get into small spaces
✔✔B& L style adjusting pliers - ✔✔flat arm will work with pads whose mountings are
flush against the pad
✔✔European pad adjusting pliers - ✔✔designed specifically for screw and snap in type
nosepad adjustment. box shaped indentation fits around the nosepad box. opposite jaw
is curved to mimic the shape of the pad itself. curved arm is padded tp protect the pads
when working with soft silicone pads
✔✔temple angling pliers - ✔✔variety of jaw depths.used for adjusting the temples at
hinge
✔✔Nylon Eyewire forming pliers - ✔✔designed to form the eyewire of a metal frame to
the curvature of the lens. can be used to curve the temple of the frame
✔✔Nylon Jaw adjusting pliers - ✔✔especially good for adjusting metal frames and not
marring the frame. great for two plier adjustments
✔✔Tweezers - ✔✔great for working with tiny screws. useful for guiding nylon string (aka
fishing line0 through small holes. available in different tip styles and grooves
✔✔self-closing tweezers - ✔✔holds screws perpendicular to the tweezer body, works
well on nose pad screws
✔✔Zyl File - ✔✔Used to file plastic frames, good for rapid removal of material
