Quiz For Introduction to Low Vision

The low vision patient may be defined as a person who: a. requires

A common definition of a person who is considered “legally” blind is one who:

The number of adults 75 years of age or older that report that he or she is either moderately or severely impaired is:

The most common cause of visual impairment is:

Visual acuity refers to:

When measuring visual acuity, the distance of 20 feet is used because:

Snellen optotypes are:

In the Snellen acuity recording 20/100, the number 100 represents:

The circles of eccentricity on a visual field chart refer to the:

Generally, the 0° point on visual field charts of both the right and the left eye is located at the:

On visual field charts, the physiologic blind spot appears in the:

A defect in the inferior temporal retina will affect the:

The most common cause of severe vision loss among people over 65 is:

The macula is responsible for

The fovea:

A test that patients can perform on themselves that can reveal signs of wet macular degeneration is:

Symptoms of macular degeneration may include:

1. blurring
2. straight lines appearing wavy
3. dark or empty areas in the center of vision
4. loss peripheral vision

An opaque area in the normally transparent lens of the eye is:

A cataract is:

The most common type of cataract, and the one associated with aging is:

Common symptoms of a cataract include:

1. blurring
2. dimming of vision
3. glare
4. distortion

The most common form of glaucoma is:

Primary open-angle glaucoma:

Vision loss is ___________time more common in persons with diabetes than those without diabetes.

Diabetic retinopathy:

1. is the leading cause of legal blindness among working adults in the United States
2. can be caused by fluctuations on the blood sugar level which can damage the blood vessels in the eye
3. is often preventable
4. is very painful

Retinopathy means:

Optic atrophy, a general term used to describe the effect of a number of conditions effecting the optic nerve, may be caused by:

1. inadequate blood supply to the eye
2. a pigmented lesion on the macula
3. a dislocated crystalline lens
4. inflammation from viral diseases

Medication for glaucoma may be:

Degenerative myopia may be characterized by a minus refractive error in association with:

1. increase in the length of the globe
2. a type of retinal degeneration arising from blood vessels entering the macula from the underlying layers of the retina
3. a pigmented lesion of the macula called Fuch’s spot
4. increase in the intraocular pressure (IOP)

Macula edema is:

Laser photocoagulation is:

Nyctalopia is:

Retinitis pigmentosa is characterized by:

Moving closer to an object in order to enlarge the retinal image is a way to create:

Low vision aids that can help achieve relative distance magnification are:

1. convex lenses mounted in a spectacle frame
2. electronic magnifying devices
3. telescopes
4. absorptive lenses

When the object itself is enlarged such as large, bold type in books, news- papers and magazines, it is an example of:

Nonoptical aids can improve visual function by:

1. improved illumination
2. reflection control
3. enhanced contrast
4. linear magnification

Hand magnifiers are rated according to power. A 5X magnification is equivalent to:

While viewing an image with a hand magnifier, the patient:

Which of the following is not a type of telescope:

The image from fixed focus stands is intended to be viewed from:

Which of the following is not an advantage of magnifying spectacles:

Which of the following is not an advantage of hand magnifiers:

Which of the following is not an advantage of telescopic systems:

Methods of achieving contrast enhancement might include:

1. high contrast reading material
2. contrasting colors indoors
3. a line guide to isolate reading material
4. good illumination