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65 Cards in this Set
- Front
- Back
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A transparent watery fluid found between the conea and lens.
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aqueous humor
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A jelly-like substance that helps keep the shape of the eyeball.
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vitreous humor
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A dark round opening at the center of the iris which becomes bigger or smaller.
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pupil
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A transparent membrane at the front of the eye.
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cornea
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It transmits images to the brain
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optic nerve
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It is a screen of light sensitive cells in the inner layer
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retina
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They protect the eyes from dust and injuries
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eyelids and eyelashes
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It is the round colored part of the eye which has muscles that cause the eye to move
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iris
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The tough outermost layer and the white part of the eyes
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sclera
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The layer that contains tiny blood vessels that supply nutrients to the eyes
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choroids
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Under what type of light does the pupil get bigger?
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dim light
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Under what type of light does the pupil get smaller?
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bright light
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A pigment that gives color to the eye
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melanin
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What are the three layers of the eye?
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outer layer (sclera), middle layer (choroid), inner layer (retina)
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2 common eye ailments
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Conjunctivitis and Sty
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This eye ailment is also known as sore eyes
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Conjunctivitis
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What causes conjunctivitis?
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bacteria, viruses, allergies and environmental pollutants
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A person with this eye ailment has red swollen and teary eyes
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Conjunctivitis
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This eye ailment is similar to a pimple
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sty
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A sty is similar to what?
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pimple
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What causes a sty?
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infection with bacteria
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List 5 common eye defects
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1) Strabismus or squint 2) Astigmatism 3) Color blindness 4) Myopia or nearsightedness 5) Hyperopia or farsightedness
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An eye defect in which the two eyes can not focus on the same object
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Strabismus or squint
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Two examples of Strabismus or squint
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crosseye or walleye
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The inability to distinguish between the colors red and green
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color blindness
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Color blindness is the inability to distinguish between what two colors?
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red and green
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Eye condition in which the horizontal and vertical images do not focus on the same point and vision is blurred
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astigmatism
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What is the cure for color blindness
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there is no cure
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Eye condition when a person has good near vision but poor distant vision
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Myopia or nearsightedness
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Eye condition when a person has good distant vision but poor rear vision
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Hyperopia or farsightedness
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List ways to care for eyes
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good nutrition vitamin a
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You should care for the eyes by eating vegetables with what vitamin?
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vitamin a
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A medical doctor who treats eye diseases
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ophthalmologist
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Examines the eyes for eye defects and corrects them by means of eyeglasses
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optometrist
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Makes eyeglasses ordered by the ophthamologist or optometrist
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optician
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Good health habits for eyes
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1)Read with enough light 2)rest eyes when reading 3)do not get too close to television 4)Do not rub your eyes
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List ways of preventing eye damage
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1) wear safety glasses 2) never look directly at sun 3)keep away pointed objects
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The image focused in the retina is inverted. Why do you see the object of image in an upright position?
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because the brain interprets and corrects the inverted image into an upright position.
It is the lining inside the eye that forms an inverted image, cornea |
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It is a thin transparent matter that covers the lens
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retina
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It carries the image to the brain
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optic nerve
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They protect they eyes from dust and injuries
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eyelids or eyelashes
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It is a round colored part of the eye that has muscles that cause the eye to move
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iris
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It bends light into the retina
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lens
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A dark round opening at the center of the Iris which becomes smaller or bigger
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pupil
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An infection of the inner lining of the eyelid
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sty
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An infection of one or more oil gland of an eyelid
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conjunctivitis
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It is like the clouds covering the lens
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cataract
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Difficulty in seeing far objects
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nearsightedness
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Chart used to check a person’s vision
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Snellen eye chart
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An abnormally round cornea
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astigmatism
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The normal eye vision
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20/20 vision
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Used by people with eye disorders instead of mounted eyeglasses
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contact lenses
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A1 Eating food rich in vitamin A keeps the eyes healthy… Yes or no?
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yes
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Rubbing one’s eye can remove specks of dirt that entered the eye … Yes or no?
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no
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Resting your eyes between reading or watching television can further stress your eyes … Yes or no?
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no
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When there is something wrong with your eyes
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it is best to consult an ophthalmologist … Yes or no?, yes
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A pair of sunglasses can protect your eyes from the harmful ultraviolet (UV) rays of the sun … Yes or no?
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yes
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Read a book while riding in a moving vehicle … Yes or no?
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no
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Wash your eyes with fresh running water to get dirt off … Yes or no?
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yes
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Look at the sun directly … Yes or no?
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no
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Rub your eyes when objects enter them … Yes or no?
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no
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Eat yellow and leafy vegetables for vitamin A … Yes or no?
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yes
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Refrain from scrubbing your eyes… Yes or no?
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yes
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Do not read while lying in bed… Yes or no?
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yes
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When strong wind blows cover your eyes … Yes or no?
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yes
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