Level of vision loss where a person's best corrected vision is 20/200 or worse or their visual field is limited.

Reduced vision that can't be fully corrected with glasses, contacts, or surgery but someone will still have unstable vision.

Clear fluid in front part of eye that nourishes the eye and helps maintain pressure.

Clear, curved front surface of the eye that helps focus light.

Black opening in center of eye that allows light to enter.

Clear structure behind the pupil that changes the shape to help focus light onto the retina,

Clear, jelly-like substance that fill the back part of eye and helps maintain its shape.

Colored part of the eye that controls the size of pupil and amount of light entering,

Layer at the back of eye that contains light sensitivity cells and sends visual signals to brain.

Nerve that carries visual info from retina to brain.

Chart with rows of letters used to measure visual acuity.

Functional Vision Assessment

Evaluation of how a person uses their vision daily in activities and environment.

Bending of light as it passes through eye to focus on retina.

Nearsighted, close objects are clear but distant objects appear blurry.

Farsighted, Distant objects are clear but blurry up close.

Blurred vision caused by an irregular shape of the cornea or lens.

Eye disease caused by pressure in eye that damages optic nerve.

Condition where the lens of eye becomes cloudy so blurry vision.

Eye disease caused by diabetes that damages the blood vessels in retina which can lead to blindness or blurry vision.

Retinopathy of Prematurity

Eye condition that affects premature babies where blood vessels in retina grow abnormally and can damage vision.

Optic nerve hypoplasia

Condition which carries visual info from eye to brain, can lead to visual problems.

Group of inherited eye disorders that cause progressive degeneration of retina and lead to gradual vision loss over time.

Where a person can only see objects directly in front of them while peripheral vision is reduced or lost.

Condition in which the eyes are not properly aligned and point in different directions.

Condition where your eyes are rapidly moving such as up and down or side to side.

Orientation and Mobility

Training that helps people with vision impairments move safely and independently.

A person to create a mental map of their environment. Helps with navigation, rem

Help

Options

focusNode

Didn't know it?
click below

Knew it?
click below

Don't Know

Remaining cards (0)

Know

retry

shuffle

restart

0:00

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

Chapter 12

Learners with Blindness

Term	Definition
Legally Blind	Level of vision loss where a person's best corrected vision is 20/200 or worse or their visual field is limited.
Low Vision	Reduced vision that can't be fully corrected with glasses, contacts, or surgery but someone will still have unstable vision.
Aqueous Humor	Clear fluid in front part of eye that nourishes the eye and helps maintain pressure.
Cornea	Clear, curved front surface of the eye that helps focus light.
Pupil	Black opening in center of eye that allows light to enter.
Lens	Clear structure behind the pupil that changes the shape to help focus light onto the retina,
Vitreous Humor	Clear, jelly-like substance that fill the back part of eye and helps maintain its shape.
Iris	Colored part of the eye that controls the size of pupil and amount of light entering,
Retina	Layer at the back of eye that contains light sensitivity cells and sends visual signals to brain.
Optic Nerve	Nerve that carries visual info from retina to brain.
Visual Acuity	Sharpness of vision.
Snellen Chart	Chart with rows of letters used to measure visual acuity.
Functional Vision Assessment	Evaluation of how a person uses their vision daily in activities and environment.
Refraction	Bending of light as it passes through eye to focus on retina.
Myopia	Nearsighted, close objects are clear but distant objects appear blurry.
Hyperopia	Farsighted, Distant objects are clear but blurry up close.
Astigmatism	Blurred vision caused by an irregular shape of the cornea or lens.
Glaucoma	Eye disease caused by pressure in eye that damages optic nerve.
Cataracts	Condition where the lens of eye becomes cloudy so blurry vision.
Diabetic Retinopathy	Eye disease caused by diabetes that damages the blood vessels in retina which can lead to blindness or blurry vision.
Retinopathy of Prematurity	Eye condition that affects premature babies where blood vessels in retina grow abnormally and can damage vision.
Optic nerve hypoplasia	Condition which carries visual info from eye to brain, can lead to visual problems.
Retinitis Pigmentosa	Group of inherited eye disorders that cause progressive degeneration of retina and lead to gradual vision loss over time.
Tunnel Vision	Where a person can only see objects directly in front of them while peripheral vision is reduced or lost.
Night Blindness	Can't see in the dark.
Strabismus	Condition in which the eyes are not properly aligned and point in different directions.
Nystagmus	Condition where your eyes are rapidly moving such as up and down or side to side.
Orientation and Mobility	Training that helps people with vision impairments move safely and independently.
Cognitive Mapping	A person to create a mental map of their environment. Helps with navigation, rem
Echolocation
Phonological Awareness
Stereotypic Behaviors
Expanded Core Curriculum
Unified English Braile
Large print books
Magnifying devices
Tactile Maps
NFB-Newsline
Descriptive Video service
Screen Readers
Itinerant teacher service
Curriculum Based Measurement

Created by: Joy Pack

"Know" box contains:
Time elapsed:
Retries: