Midterm exam prep

Eye Works Quiz 1 Q&A:

  1. Which is not a function of tears?

    A: Forming a smooth reflective surface for the cornea

  1. What is the thickest layer of the cornea?

    A: Stroma

  1. What structure constricts the iris?

    A: Sphincter

  1. Where does the aqueous humor first exit the anterior chamber?

    A: Trabecular meshwork

  1. Which photoreceptor is the most prevalent in the retina?

    A: Rods


Eye Works Quiz 2 Q&A:

  1. The strabismus involves all of the following except:

    -One eye pointed in a different direction than the other

    -Can cause diplopia

    -Forces the brain to choose an eye to focus with

    -Can lead to amblyopia

    A: All of the above

  1. The eye muscle that pulls the eye towards the nose is the:

    A: Medial Rectus

  1. Which is not part of the accommodative triad?

    (X) Pupillary constriction

    (X) Convergence

    (X) Accommodation of the lens

    A: Pupillary dilation

  1. What part of the retina is more receptive to night vision?

    A: Rods

  1. What activates the dilator muscle?

    A: Dim lighting


Blur Quiz 1 Q&A

  1. Glasses can fully correct a person with irregular astigmatism.

    A: False

  1. Optic neuritis is most commonly caused by multiple sclerosis.

    A: True

  1. Which form of cataract is most visually debilitating?

    A: Posterior subcapsular

  1. Which of the following is congenital in nature?

    (X) Nuclear Sclerosis Cataract

    (X) Keratoconus

    (X) Optic Neuritis

    A: Anirida

  1. Keratoconus primarily affects what ocular structure?

    A: Cornea


Blur Quiz 2 Q&A

  1. The majority of vision loss in those over the age of 55 comes from what disease?

    A: Dry macular degeneration

  1. The medical term for the brain ignoring an eye, causing reduced vision out of that eye even though it may be perfectly healthy is known as what?

A: Amblyopia

  1. Progression of macular degeneration can be monitored at home between doctor visits using what device?

    A. Amsler Grid

  1. Two-thirds of the refractive power comes from the lens within the eye.

    A: False

  1. Diabetes affects the small blood vessels within the eye, thus causing blurred vision.

    A: True


Exam 1:

  1. When one eye muscle contracts, the opposing muscle must relax in order to let the eye move.

    A: True

  1. List the structure that allows for the nasal nerves of one retina combine to join the temporal nerves of the opposing eye's retina.

    A: Optic chiasm

  1. A tertiary eye movement would be considered to happen if the eye is looking to the left or the right.

    A: False

  1. Which photoreceptor is most prevalent within the eye?

    A: Rods

  1. Which photoreceptor is most prevalent within the eye?

    A: Occipital lobe

  1. The frontal lobe of the brain is responsible for which of the following eye movements?

    A: Volition

  1. What is the ocular structure that makes up 5/6 of the outer eye, is opaque and also provides protection?

    A: Sclera

  1. The tarsus within the lid provides protection.

    A: True

  1. Which muscle allows the lens to accommodate?

    A: Ciliary body

  1. Which eye muscle works to move the eye towards the ears (outwards)?

    A: Lateral rectus

  1. Which of the following does not include the transparent pathway of light?

    A: Conjunctiva

    (X) Cornea

    (X) Lens

    (X) Tears

  1. List the 6 structures in order from the front of the eye to the retina that makes up the transparent pathway of light (only one per blank).

    #1: Tear film

    #2: Cornea

    #3: Aqueous humor

    #4: Pupil

    #5: Crystalline Lens

    #6: Vitreous body

  1. The retina is made of 10 layers

    A: False

  1. Which of the following colors is not a color that the retina is most sensitive to?

    A: Yellow

  1. The medial rectus moves the eye upwards.

    A: False

  1. The tears are removed the eye and ultimately end up in the lacrimal sac within the nose.

    A: True

  1. Which muscle opens the upper lid?

    A: Levator

  1. The aqueous humor takes up 2/3 of the volume of the eye.

    A: False

  1. What muscle AND type of illumination causes the pupil to dilate?

    A: Dilator pupillae, in dim light

  2. List a function of the tears

    A: Delivers oxygen to the eye, and maintains moisture of the eye

  1. The part of the conjunctiva on the backside of the lids is known as the bulbar conjunctiva.

    A: False

  1. What is needed to activate the accommodative triad?

    A: a blur stimulus or shift in attention from a distant object to a nearby object (maybe)

  1. Behind, or after the optic chiasm, the nerve that transmits light from the eye to the brain is known as the optic nerve.

    A: True (called the optic tract)

  1. List the three actions that happen during the accommodative triad (one answer per blank).

    -Convergence

    -Pupil constriction

    -Accommodation

  1. What is the thickest layer of the cornea?

    A: Stroma

  1. This term refers to the ability of the two eyes to fuse into one image.

    A: Binocular vision

  1. List the eye muscle that closes the eye

    A: Orbiculus Oculi

  1. The term OS is an abbreviation for a clients left eye.

    A: True