Quiz For Vision Therapy

–7.50 – 1.00 x 145 –1
–2.00 – 2.00 x 017

What is true about the above prescription?

1. The patient has myopia and astigmatism in both eyes
2. The patient is young
3. The patient was not able to read one of the Snellen characters with the right eye
4. The patient needs polycarbonate lenses

What is the correct term for “lazy eye”?

80% of _______________________ patients are hyperopic.

Which of the following symptoms might indicate poor vision in a child?

1. Blurry images
2. Headaches
3. Inattention
4. Tilting the head for close work

What is correct about a Retinoscope?

1. It can be used objectively for non-verbal patients
2. The rays reflected on a myopic eye will show against motion
3. Values are read in millimeters only
4. Usually -1.50 will be deducted from the reading

The ________________________________ is a device that admits central rays of light to enter the eye and, when used with the Snellen chart, may indicate the need for refractive correction.

Good motility tracking has specific directions. Included directions are:

1. Right and up
2. Right and down
3. Left and up
4. Left and down

A good test for 3-D visualization is:

Spatial orientation is related to:

An average patient with good peripheral vision should have a field of view of approximately ______________ even when gazing straight ahead

A simple step that will give an infant equal visual stimulus is:

Vitamins and micronutrients can be important to the development and heath of the eye. Which of these is not considered a vital nutrient for vision?

Which of these conditions could cause muscular imbalance of the eyes?

1. Extra ocular muscles that are not the same length
2. Extra ocular muscles that are not equal in tensile strength
3. A nerve defect
4. Blepharitis

Vision Therapy has a usual and customary course of steps for the majority of children. Which of these is not a usual step in Vision Therapy?

What is true regarding occlusive amblyopia?

When is surgery considered for amblyopia?

Vision therapy is best started by the time a child is

“Magic Eye” and “3Dimka” are examples of

1. Stereograms
2. Puzzles
3. Vision therapy tools
4. Games

The eye is naturally drawn to the ______________ of a prism

What is true regarding reading?

1. It is a critical learning skill for school-aged children
2. The brain translates the written word into a picture in the brain
3. All children can converge properly
4. Accommodation is needed for the ability to read well

When bifocals are used to assist a child to read, the top segment line is placed

According to the National Institute of Health Study conducted in 2011, what percentage of patients will benefit from Prism Therapy?

What is happening to an eye with exophoria?

In which direction should the base of the prescribed prism be located?

Which of these is not one of the three primary methods to create prescribed prism?

What is a drawback in using a Fresnel prism?

1. It is difficult to keep clean
2. It is expensive
3. It is not cosmetically pleasing
4. It is heavy

What is the vertical power of this lens? +2.00 – 0.50 x 45

What is the horizontal power of this lens? – 6.00 – 2.00 x 180

Why is prism split?

1. For better cosmetics
2. For balance of lens weight
3. For patient comfort
4. For cheaper cost

Which choice is not “adding” prism directions?

What is the correct formula to purposely move a lens optical center to create prescribed prism?

Split the prism for this prescription: OD +2.50 DS, OS +3.50 DS 3 Δ BO

What direction do you move a plus lens to create the proper prism base?

How many millimeters must an optician move a lens to create 5Δ BU prism in a -5.00 DS lens?

After determining the frame decentration of 6mm up for each eye, and the prescribed prisms of OD 3mm down and OS 1mm down, how do you decenter these lenses?

What can you do if your prism decentration calculations to create prism result in an MBS larger than you currently have in stock?

1. Order a larger lens blank
2. Have the laboratory create the prism
3. Use a Fresnel prism
4. Change the decentration until the MBS you have is achieved

What visual condition is hallmarked by the reception of images that are 5% or more in size difference from the right eye to the left eye?

The primary goal of surgical correction of simple tropias is to:

What are the “3 B’s” to help prevent Computer Vision Syndrome?

What is an X-Chrom contact lens used for?