Optician's ABO
A high dispersion radio such as in flint glass can cause is called: - Chromatic aberration
discomfort
A hype rope always has in his or her prescription the following kind of power: - Plus
power
A lens having one concave and one convex surface is called a: - Meniscus lens
A myopia always has in his or her prescription the following kind of power: - Minus
power
A pair of crossed cylinders, +1.00x90 and +1.50x180 would produce a power of: -
+1.00+0.50x180
A patient stops into your dispensary for an adjustment of his glasses. After careful
inspection, you find the only thing wrong is that there is too much pantoscopic tilt. To
make the necessary adjustment you will: - Angle the temples upwards from the end
pieces.
A ptosis crutch is used to give support to _____ - Upper lid
A ptosis crutch is used to give support to: - Upper lid
A pupillometer is used to measure the: - Interpupillary distance
A reverse slab-off is molded with base _____ prism in the near portion of the lens. -
Down
A reverse slab-off should be used in the eye which has the: - Most Plus Power
A semi-rimless mounting consists of: - A center piece with lens bars connecting the end
pieces and temples.
A slab-off should be ground in the lens which was the: - Most Minus Power
A slab-off, which is ground to reduce vertical imbalance at near, creates base _____
prism in the near portion of the lens. - Up
A vertometer cannot measure or locate the _____ - Top of a bifocal segment
A very good CR-39 lens commonly used in cataract case is a: - Lenticular
, An ophthalmic correction from an ametrope is to focus parallel incident light rays at the:
- Far point of the eye.
An Rx with the O.D. minus and the O.S. plus is an obvious case of: - Antimetropia
As the pantoscopic angle is increased: - The optical centers should be lowered.
Aspheric lens surfaces are most commonly used with: - Cataract lenses
Astigmatism is corrected by the lens having: - Cylinder power
Bicentric grinding is synonymous with: - Slab-off
Bifocals are used to correct for a condition called: - Presbyopia
Bowing temples is an expression referring to: - Curving the temples around the head.
Cataract spectacle lenses are best if they are made with: - Aspheric curves
Corrected curve lenses have: - Less oblique astigmatism.
Excessive base up prism: - Makes people feel like they are walking downhill.
Halite lenses have a refractive index of: - 170
If the eye wires touch the cheeks, the adjustment to take care of this condition would be:
- Decrease pantoscopic tilt.
If the pad arms are bent up and the pads realigned, this adjustment will: - Drop the front.
If the pad arms are lengthened, this adjustment will: - Push the front out more.
If the papillary distance is measured while the patient is focusing on a point 30 inches in
front of his eyes, the P.D. measured is known as the _____ P.D. - Intermediate
If the right temple is angled down, this adjustment will: - Raise the right side of the front.
Image size is always increased if you: - Increase the front curve.
It is "generally" accepted procedure to fit the top of the trifocals segment to the: - Bottom
edge of the pupil.
Lens calipers are commonly used to measure: - Lens thickness
Loss of vision without any apparent defect of the eye is called: - Amblyopia
A high dispersion radio such as in flint glass can cause is called: - Chromatic aberration
discomfort
A hype rope always has in his or her prescription the following kind of power: - Plus
power
A lens having one concave and one convex surface is called a: - Meniscus lens
A myopia always has in his or her prescription the following kind of power: - Minus
power
A pair of crossed cylinders, +1.00x90 and +1.50x180 would produce a power of: -
+1.00+0.50x180
A patient stops into your dispensary for an adjustment of his glasses. After careful
inspection, you find the only thing wrong is that there is too much pantoscopic tilt. To
make the necessary adjustment you will: - Angle the temples upwards from the end
pieces.
A ptosis crutch is used to give support to _____ - Upper lid
A ptosis crutch is used to give support to: - Upper lid
A pupillometer is used to measure the: - Interpupillary distance
A reverse slab-off is molded with base _____ prism in the near portion of the lens. -
Down
A reverse slab-off should be used in the eye which has the: - Most Plus Power
A semi-rimless mounting consists of: - A center piece with lens bars connecting the end
pieces and temples.
A slab-off should be ground in the lens which was the: - Most Minus Power
A slab-off, which is ground to reduce vertical imbalance at near, creates base _____
prism in the near portion of the lens. - Up
A vertometer cannot measure or locate the _____ - Top of a bifocal segment
A very good CR-39 lens commonly used in cataract case is a: - Lenticular
, An ophthalmic correction from an ametrope is to focus parallel incident light rays at the:
- Far point of the eye.
An Rx with the O.D. minus and the O.S. plus is an obvious case of: - Antimetropia
As the pantoscopic angle is increased: - The optical centers should be lowered.
Aspheric lens surfaces are most commonly used with: - Cataract lenses
Astigmatism is corrected by the lens having: - Cylinder power
Bicentric grinding is synonymous with: - Slab-off
Bifocals are used to correct for a condition called: - Presbyopia
Bowing temples is an expression referring to: - Curving the temples around the head.
Cataract spectacle lenses are best if they are made with: - Aspheric curves
Corrected curve lenses have: - Less oblique astigmatism.
Excessive base up prism: - Makes people feel like they are walking downhill.
Halite lenses have a refractive index of: - 170
If the eye wires touch the cheeks, the adjustment to take care of this condition would be:
- Decrease pantoscopic tilt.
If the pad arms are bent up and the pads realigned, this adjustment will: - Drop the front.
If the pad arms are lengthened, this adjustment will: - Push the front out more.
If the papillary distance is measured while the patient is focusing on a point 30 inches in
front of his eyes, the P.D. measured is known as the _____ P.D. - Intermediate
If the right temple is angled down, this adjustment will: - Raise the right side of the front.
Image size is always increased if you: - Increase the front curve.
It is "generally" accepted procedure to fit the top of the trifocals segment to the: - Bottom
edge of the pupil.
Lens calipers are commonly used to measure: - Lens thickness
Loss of vision without any apparent defect of the eye is called: - Amblyopia
