What is the function of the sclera?

Helps the eyeball keep it shape and protect it from serious damage

What is the function of the cornea?

Protective outer layer, helps focus light for clear vision

What is the responsibility of eyelids?

To spread tear film evenly across the surface of the eye

What happens to the lens when viewing distant objects?

The ciliary muscles relax and the lens flattens out

Bending and changing speed of light rays

Where are nerve impulses sent from the retina?

Through the optic nerve to the visual cortex

What do lenses do to correct refractive errors?

Bend light rays to compensate for the error

Elongated eyeball causing light to focus before retina

The white part of the eye that provide support and protection

What does a client with 20/40 vision mean?

They see letters at 20 feet that most others can read at 40 feet

What is the cerebral cortex responsible for?

Higher level processes of the human brain

How often should an eye exam be done between the ages of 40-60?

q2 years or more often if needed

What is Laser-assisted in Situ Keratomileusis? Select all that apply

Laser or surgical blade is used to create a thin corneal flap, Most common surgery for refractive errors, A cool beam laser is used to reshape the cornea, Flap is folded back to expose the inner cornea

Can conjunctivitis be transferred from one eye to the other?

Yes, when the eye or face is touched

What is total blindness?

The patient cannot see light at all

What is the Nursing assessment for eye problems? Select all that apply

How long have symptoms been occurring, Any treatments or medication‘s at home or by other doctor, Any discomfort, pain or other symptoms, Gather info such as past and current ability to see, Any other illnesses that may affect eye health

What does the bottom number on each line of the chart indicate?

The vision of the person being tested

What are the symptoms of conjunctivitis? Select all that apply

Swelling, Redness, Sometimes purulent discharge, Itching, Pain

What happens to the lens when viewing close objects?

The ciliary muscles contract in the lens curves

Colored part of eye that controls the AMOUNT of light that enters the eye

What is the optic nerve?

Paired cranial nerves that transmits visual info from retina to brain

How is vision assessed with the Rosenbaum chart?

In the same manner as with the Snellen Chart

Do people who are considered blind perceive light & motion?

Yes, many people who are considered blind perceive light and motion

Nearsightedness, can’t see distant objects clearly

What does the patient do when using the Snellen eyechart?

Cover 1 eye & read smallest possible line of letters w/ uncovered eye

What is the function of the retina?

Receive light and send neural signals to the brain 4 Visual Recognition

What is the legal definition of blindness?

BCVA of 20/200 or less w/ corrective lenses

What is the function of the macula?

Serves sharpness/color vision due to high concentration of cones

Layer between retina and sclera that nourishes the outer retina

The thin layer of tissue at the back of the eye

How is conjunctivitis spread?

Direct contact and is VERY contagious

Extended/protruded upper eyelid that delays closing R stays open partially

What is the Rosenbaum chart?

A chart used to assess vision at 12-14 inches

What are the symptoms that require an eye exam? Select all that apply

Bulging eyes, difficulty focusing, Loss of peripheral vision, Sudden loss of vision, Dark spots in the center of the field of vision, Blurred, cloudy, doubled, or hazy vision

What are rods and cones?

Photoreceptor cells in the retina

What is the aqueous humor? Select all that apply

Clear fluid that nourishes lens and maintains eye pressure, Fills space between lens and cornea

What are the duties of an ophthalmologist? Select all that apply

Prescribe corrective lenses, Perform surgery, Prescribe medications, Diagnose and treat eye disorders

What is a focal point?

Precise focus of light on the retina

Visual distortion caused by irregular shaped cornea

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Sensory Part 1

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Answers

1
What is the function of the sclera?
Helps the eyeball keep it shape and protect it from serious damage
To keep the eye from drying out
2
Where is the retina located?
In the front of the eye
Near the optic nerve
3
What is the function of the cornea?
Helps that eyeball keep it shape and protect it from serious damage
Protective outer layer, helps focus light for clear vision
4
What is the responsibility of eyelids?
secretes and drains tears made by lacrimal gland
To spread tear film evenly across the surface of the eye
5
What happens to the lens when viewing distant objects?
The ciliary muscles restrict and the lens puffs out
The ciliary muscles relax and the lens flattens out
6
What part of the eye reflects light?
Pupil and Iris
Cornea and lens
7
What is refraction?
The function of the occipital lobe of the brain
Bending and changing speed of light rays
8
Where are nerve impulses sent from the retina?
Through the optic nerve to the visual cortex
Through the optic nerve to the heart and brain
9
How long does viral conjunctivitis last?
Could last up to 3 months
1-2 weeks
10
What do lenses do to correct refractive errors?
Replace light reflection
Bend light rays to compensate for the error
11
What causes myopia?
Elongated eyeball causing light to focus before retina
Young age
12
What is the sclera?
The white part of the eye that provide support and protection
The dark center of the eye through which light enters
13
How often should adults 65 and older have a complete eye exam?
q6 months
q1-2 years
14
What does a client with 20/40 vision mean?
They see letters at 20 feet that most others can read at 40 feet
Well this one’s a doozy
15
What is the cerebral cortex responsible for?
Higher level processes of the human brain
There’s really no functional purposes
16
How often should an eye exam be done between the ages of 40-60?
q2 years or more often if needed
Every six months or more if needed
17
What is Laser-assisted in Situ Keratomileusis? Select all that apply
Laser or surgical blade is used to create a thin corneal flap
Most common surgery for refractive errors
A cool beam laser is used to reshape the cornea
Flap is folded back to expose the inner cornea
18
Can conjunctivitis be transferred from one eye to the other?
No, it is not contagious therefore cannot be spread
Yes, when the eye or face is touched
19
What is total blindness?
The patient cannot see light at all
Visually impaired is also considered total blindness
20
What is the Nursing assessment for eye problems? Select all that apply
How long have symptoms been occurring
Any treatments or medication‘s at home or by other doctor
Any discomfort, pain or other symptoms
Have there been any dizzy spells or loss of balance
Gather info such as past and current ability to see
Any other illnesses that may affect eye health
21
What does the bottom number on each line of the chart indicate?
The vision of others
The vision of the person being tested
22
What causes Presbyopia?
Loss of elasticity of the lens
Irregular shaped cornea
23
What are the symptoms of conjunctivitis? Select all that apply
Serosangiounous discharge
Swelling
Redness
Sometimes purulent discharge
Itching
Pain
24
What is the process of changing the shape of the lens to focus on objects at different distances called?
20/20 vision
Accommodation
25
What happens to the lens when viewing close objects?
Ciliary muscles relax and the lens flattens out
The ciliary muscles contract in the lens curves
26
What is the iris?
Colored part of eye that controls the AMOUNT of light that enters the eye
The dark center of the eye through which light ENTERS
27
What is the optic nerve?
Photo receptors in the retina
Paired cranial nerves that transmits visual info from retina to brain
28
What happens to the people in bright light?
It dilates
It constricts
29
How is vision assessed with the Rosenbaum chart?
In the same manner as with the Snellen Chart
With tune forks
30
Do people who are considered blind perceive light & motion?
No, people were considered blind do not perceive light or motion
Yes, many people who are considered blind perceive light and motion
31
What is Myopia?
Nearsightedness, can’t see distant objects clearly
For sidedness can’t see near objects clearly
32
What does the patient do when using the Snellen eyechart?
Cover 1 eye & identify pictures shown
Cover 1 eye & read smallest possible line of letters w/ uncovered eye
33
How are refractive errors usually corrected?
Surgery is the only correction
Eyeglasses or contact lenses
34
How long does it take for full stabilization of vision after Lasik?
Up to 1 year
3-6 months
35
What is the function of the retina?
Supplies nutrients, maintains temp and volume of the eye
Receive light and send neural signals to the brain 4 Visual Recognition
36
What are the muscles that control eye movement connected to?
The sclera
The iris
37
What is the legal definition of blindness?
BCVA of 20/200 or less w/ corrective lenses
BCVA of 20/20 or more w/ corrective lenses
38
What is the function of the macula?
Area where optic nerve enters eye
Serves sharpness/color vision due to high concentration of cones
39
What is the choroid?
Layer between retina and sclera that nourishes the outer retina
Area where optic nerve enters Eye
40
What is the retina?
The thin layer of tissue at the back of the eye
The transparent film on the front of the eye
41
How is conjunctivitis spread?
It cannot be spread it is not contagious
Direct contact and is VERY contagious
42
What is proptosis?
A chart used to test visual acuity
Extended/protruded upper eyelid that delays closing R stays open partially
43
How far is the patient placed from the Snellen Eye chart?
200 feet
20 feet
44
What is the top number on each line of the chart?
200
20
45
What is the Rosenbaum chart?
A chart used to assess hearing loss
A chart used to assess vision at 12-14 inches
46
What are the symptoms that require an eye exam? Select all that apply
Bulging eyes, difficulty focusing
Vertigo
Loss of peripheral vision
Sudden loss of vision
Dark spots in the center of the field of vision
Blurred, cloudy, doubled, or hazy vision
47
What are rods and cones?
Photoreceptor cells in the retina
Part of the brain that controls smell
48
What is the aqueous humor? Select all that apply
Clear fluid that nourishes lens and maintains eye pressure
Fills space between lens and cornea
49
What are the duties of an ophthalmologist? Select all that apply
Prescribe corrective lenses
Perform surgery
Prescribe medications
Diagnose and treat eye disorders
50
What is a focal point?
The cornea and lens together
Precise focus of light on the retina
51
What is astigmatism?
Surgical procedure to reshape the lens
Visual distortion caused by irregular shaped cornea
52
What is ptosis?
Drooping upper eyelid
Pink eye
53
What are the risk of wearing false eyelashes? Select all that apply
Infections
Eye injuries
Damage to natural lashes
Allergic reactions
54
What can prevent most blindness?
Nothing can prevent blindness it is a gradual onset
Recognition/treatment of common eye Disorders like cataracts & glaucoma
55
What is the macula?
Area where optic nerve enters eyes
Part of retina responsible for central vision, color vision & fine detail
56
What causes hyperopia?
Low elasticity of the lens
Shorter than normal eyeball causing light to focus behind retina
57
What does conjunctiva provide a covering to?
Retina
Sclera
58
What is the role of the lens in vision?
To retract light from the retina
To focus light onto the retina
59
What is emmetropia?
The beginning of blurred vision
Normal vision with precise focus on the retina
60
What is conjunctiva?
Mucous membrane covering eyes and eyelids
Pink eye
61
Where is the image formed in the eyes?
On the pupil
On the retina
62
When should a baseline eye exam be done?
At age 40
At age 30
63
What is allergic conjunctivitis?
Conjunctivitis caused by environmental allergies
Conjunctivitis caused by viral infection
64
Who needs more frequent eye exams? Select all that apply
Adults with a personal or family history of a disease
Renal failure patient
Diabetic patient
HTN patient
65
What are the muscles that contract or relax to change the shape of the lens called?
Ciliary muscles
Gluteal muscles
66
How can you assist a client with blindness with ambulation?
All for your arm or elbow to grasp
Continuously talk to them so they may follow your voice independently
67
What is the lacrimal apparatus?
The white part of the eye that provide support and protection
Secretes and drains tears made by lacrimal gland
68
Vision problems due to light not focusing properly on the retina due to elongated or shortened eyeball?
Refractive errors
Astigmatism
69
What is a Snellen eye chart?
A chart used to test visual acuity
Drooping of the lower eyelid
70
What is bacterial conjunctivitis?
Bacterial infection causing thin, runny discharge
Bacterial infection causing thick, mucus like discharge
71
What is the optic disc?
Area where optic nerve enters the eye
The best disco ball of all disco balls in the world
72
What is the vitreous humor?
Jelly-like fluid that supports eyes shape and transmits light to retina
Receives light and sends neural signals to brain
73
What is considered normal visual acuity?
20/20
20/200
74
What happens to the people in dim light or darkness?
It dilates
It constricts
75
How is visual acuity documented?
As the smallest line of letters that can be read with only 2 errors
The smallest line of letters that can be read with NO errors
76
Is suturing required after LASIK?
Yes it Has to be sutured to prevent the risk of infection
No the flap is return to its original position and heals on it’s own
77
What happens to the cornea during RK? Select all that apply
It’s made more cone shaped for Hyperopia
It’s made flatter for Myopia
78
What is the function of the choroid? Select all that apply
Supplies nutrients to the eye
Maintains temperature and volume of the eye
79
What is the treatment for bacterial conjunctivitis?
Heals completely without treatment
Antibiotic eyedrops or ointment, but may heal without treatment
80
What is an optometrist?
Dr. of optometry who test vision and prescribes correct of lenses
Surgeon who performs eye retraction
81
What is the scope of practice for optometrist? Select all that apply
Prescribe medication in some states
Test vision, examine eyes
PreScribe corrective lenses
Treat limited eye disease
82
What is nystagmus?
Drooping upper eyelid
Involuntary rhythmic side to side, up & down or circular motion of eye
83
What causes conjunctivitis? Select all that apply
Bacteria or viruses
Use of eyeglasses
Use of contacts
Allergic reaction
84
Where is the visual cortex located?
In the occipital lobe of the brain
In the middle ear
85
What is the main role of eyelids?
To allow rest at night
To protect the eye
86
What is viral conjunctivitis?
Viral infection causing thin, runny discharge
Viral infection causing thick, purulent discharge
87
What is Presbyopia?
Age related difficulty with near vision
Age related difficulty with far away vision
88
What is incisional radial keratotomy (RK)?
Surgical procedure to reshape the cornea
Radical surgical procedure to take out a portion of the eyeball
89
What are the American Academy of ophthalmology recommendations for adults with no signs of eye disease?
Complete I exam if there any changes in vision
Complete eye exam once in their 20s and twice in their 30s
90
What is conjunctivitis?
Inflammation of the conjunctiva
Inflammation of the cornea
91
What is the lens?
Colored part of eye that controls light
Transparent structure that focuses light on retina
92
What is the function of eyelids during sleep?
To cover the sclera
To keep the cornea from drying out
93
How would you check extraocular muscles for an eye assessment?
Check accommodation with pin light
Ask client to hold head still while following object up, down, left & right
94
How do eyelashes protect the eyes?
By catching airborne debris and forming a barrier when closed
To keep the cornea from drying out
95
What is the pupil?
The colored part of the eye that controls the amount of light
The dark center of the eye through which light enters
96
What is hyperopia?
Nearsightedness, can’t see far objects clearly
Farsidedness, can’t see nearby objects clearly
97
What is the purpose of Lasik? Select all that apply
To flatten the cornea for Myopia
More cone shaped for Hyperopia
Reshape the irregular cornea for astigmatism
98
BCVA between 20/70 & 20/200 in the better eye with the use of glasses is considered?
Visually impaired
Blindness
99
What Causes blurry vision?
Changes in the shape of the eye
Precise focus on light
100
What is the function of the eyelashes?
To protect eyes from debris and irritants
To spread tear film evenly across the surface of the eye

Sensory Part 1 Flashcards | StudBud