ABO sample Questions study guide Grade A+
When light is refraction by a prism it is:
a. Bent toward the apex
b, Bent toward the base
c. Not bent
d. Reflected - correct answer-B. Bent toward the base
A prism always bends light toward its base.
Prisms:
I. Always bend light ...
When light is refraction by a prism it is:
a. Bent toward the apex
b, Bent toward the base
c. Not bent
d. Reflected - correct answer-B. Bent toward the base
A prism always bends light toward its base.
Prisms:
I. Always bend light toward the base
II. Always bend light toward the apex
III. Cause chromatic Dispersion
IV. Move the image toward the apex
V. Are sometimes prescribed for muscle problems - correct answer-I. Always bend
light toward base
III. Cause chromatic dispersion.
IV. Move the image toward the apex.
V. are sometimes prescribed for muscle problems
Plus lenses are:
I. are thicker in the center than at the edges
II. Are used to correct myopia
III. Are used by all presbyopes
IV. Must be surfaced individually in the laboratory - correct answer-I. Are thicker in
the center than at the edges.
Which of the following does not describe a minus lens
a, The image moves with motion
b. Thicker at the edge than in the center
c. Magnifies the image
d. Corrects for myopia - correct answer-c. A minus lens minifies, not maginfies
The parts of the eye that refract light are:
a. Cornea, Aqueous humor, lens and vitreous humor
b. Cornea, Iris, and lens
c.Retina, choriod, lens, and aqueous humor
, d. cornea, lens, and pupil - correct answer-A. Cornea, Aqueous humor, lens and
vitreous humor.
Where the sclera and the cornea meet is called the
a. Iris
b. Limbus
c. Ora serrata
d. conjunctiva - correct answer-B. Limbus
A cataract is:
a. A film over the eye
b. a cloudiness of the crystalline lens
c. removal of the crystalline lens
d. an internal ptergium - correct answer-b. A cloudiness of the crystalline lens
A cataract may also be referred to as opacification of the lens. removal or absence of
the crystalline lens is aphakia
Near visual acuity is often abbreviated as:
a. 20/40
b. 10/10
c. N. 15
d. J.2 - correct answer-D. J.2
Distance visual acuity usually has two numbers. It is a comparison of the distance a
patient is from the target to what an average person can see at that distance. One of
the most common tests for visual acuity is the Jaeger test Card. The results are
signified by the letter J with a number.
Myopia can be attributed to
a. Loss of accommodation.
b a shorter than normal eyeball
c. a longer than normal eyeball
d. astigmatism - correct answer-C. a longer than normal eyeball
Myopia is a condition of distance vision. It is caused by the refracting system of the
eye having too much plus power for length, or the eye being too long for its power.
Eyeglasses can relieve or correct all of the following conditions except:
a. A scotoma
b. Presbyopia
c. Simple astigmatism
d. Mixed astigmatism - correct answer-a. A scotoma
A scotoma is a "blind spot" of the retina. no glasses can correct it.
The condition known as second sight is often associated with:
a. increase in accommodation
b. incipient cataract
c. ocular rejuvenation
d. surgery - correct answer-b. Incipient cataract.
Some presbyopes find they no longer need glasses to read. This so called "Second
sight" is usually caused by an increase in myopia due to swelling of the crystalline
lens caused by a developing cataract.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Clinch2Excell. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $3.39. You're not tied to anything after your purchase.
