ABO practice Questions | Frequently asked Questions |Optometry
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ABO
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ABO
ABO practice Questions | Frequently asked QuestionsOptometry
A 5 years old walks to your optical dispensary. You notice that when he wants to look to the frames his right eye turns in. What is the problem?
A frame fits perfectly on your patient. The temples, bridge, and pads are fine, but the f...
ABO practice Questions | Frequently asked
Questions
A 5 years old walks to your optical dispensary. You notice that when he wants to look to
the frames his right eye turns in. What is the problem?
A. He has exophoria
B. He has esophoria
C. He has exotropia
D. He has esotropia -answer- He has esophoria
A customer complains that his old glasses have better visual acuity than the new
glasses (same RX). What should the optician do?
A. Return the customer to the refractionist
B. Remake the lenses
C. Check the base curve
D. Put the old lenses in a new frame -answer- Check the base curve
A frame fits perfectly on your patient. The temples, bridge, and pads are fine, but the
frame sits high. You should select a frame with a bridge that is:
A. Wider
B. Narrower
C. Higher
D. Lower -answer- Wider
A frame material which is excellent for people with an active lifestyle because of its
flexibility and impact resistance;
A. Cellulose acetate
B. Titanium
C. Nylon -answer- Nylon
A lens which reads +3.00 -2.00 x 90 is decentered 6mm too much. How much prismatic
effect will wearer experience?
A. 1.8^
B. 0.6^
,C. 3.0^
D. 1.2^ -answer- 0.6^
A Number 3 tint absorbs
A. 80% of the light entering the lens
B. 50% of the light entering the lens
C. 60% of the light entering the lens
D. 33.3% of the light entering the lens -answer- 80% of the light entering the lens
A patient brings the following Rx to you. What would you do?
Rx: OD -2.00 -1.00 x 180 OS -1.00 +1.00 x 180
A. After transposing the OS, you order the lenses
B. After transposing the OD, you order the lenses
C. You order the lenses the way they are.
D. You will call the refractionist -answer- You will call the refractionist
A patient comes back to the optician complaining of pain behind the ears, possible
cause are:
A. Temple tension too great
B. Uneven pressure
C. Temple endpieces angled in too much
D. All of the above -answer- All of the above
A patient's best point of focus is 10". What lens would he need to see 20/20?
A. -10.00D
B. +4.00D
C. -2.00D
D. -4.00D -answer- -4.00D
D=1/0.254m=3.94---4.00D
A patient's distance Rx is: OU -3.50 -1.50 x 180 and the reading Rx is: OU -1.25 -1.50 x
180. He has problem seeing small prints and asks for a stronger reading glasses. Also
he wants the new pair to be a bifocal. What ADD would you order for him?
A. -2.25D
B. -2.75D
C. +2.75D
D. +2.25D -answer- +2.75D
A patient's PD is 68/64. How much is the segment inset?
, A. 4mm
B. 2mm
C. There is not enough information to answer this question. -answer- 2mm
(Maybe 1/2 distance between DPD and NPD)
A polariscope is used to check inserted lenses for:
A. Sphere power
B. Cylinder power
C. Axis
D. Strain -answer- Strain
An error in standard alignment where, when viewed from the front, one lens appears to
be somewhat higher than the other, is called
A. X-ing
B. lenses out of coplanar alignment
C. lenses out of vertical alignment
D. lenses out of horizontal alignment -answer- lenses out of horizontal alignment
An ophthalmic correction for an ametropia is to focus parallel incident light rays at the:
A. Near point of the eye
B. Far point of the eye
C. Focal point of the eye -answer- Far point of the eye
An Rx OD requires 1.5mm decentration out and 2mm seg inset. Total inset of the
segment would be:
A. 3.5mm In
B. 1.5mm Out
C. 2mm In
D. 0.5mm In -answer- 0.5mm In
Besides accommodation, the crystalline lens:
A. focuses on distance objects
B. corrects weak astigmatism
C. filters the aqueous
D. filters ultraviolet radiation -answer- Filters ultraviolet radiation
Calculate the image jump for the following bifocal lens:
-2.00 -1.00 x 80 ADD 2.50
Seg style is Round 22
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