(Future) Exam 3 Flashcards
Eyelids
protect eyes from dust, light, injury
Palpebral fissure
- open space between eyelids
Limbus
border between cornea and sclera
canthus
angle where lids meet (inner, outer)
Caruncle
fleshy mass at inner cants contains sebaceous glands
Tarsal plates
Connective tissue in upper lid- contain meibomian glands - lubricate lids
Conjuctiva
transparent protective covering
Cornea
covers/protects iris and pupil
lacrimal gland
outer corner of eye - secretes tears
Puncta
where tears drain
Outer layer-sclera
continuous anteriorly with a smooth, transparent cornea that covers iris and pupil
Cornea
cornea: smooth and transparent
- part of refracting media of eye, bending incoming light rays so that they will be focused on inner retina
- very sensitive to touch;
contact with a wisp of cotton stimulates a blink in both eyes, this is called
Corneal reflex
middle layer-choroid
- dark pigmentation to prevent light from reflecting internally and is highly vascular to deiver blood to retina
- anteriorly is coninous with ciliary body and iris
Muscles of _______ body control _________ of lens
ciliary; thickness
Pupil size during sympathetic vs parasympathetic
sympathetic - dilates
Parasympathetic - constricts
Lens
What are they?
what determines the amount of fluid produced?
Refracting medium/ keeps a viewed object in focus on the retina
- Intraocular pressure is determined by the amount of fluid produced balanced by resistance to outflow
through the ophthalmoscope, we can see
- optic disc
- Macula
- retina
-retina vessels
CN VI: abducens
lateral movement
CN IV: trochlear
superior oblique, down and in
CN III: Oculomotor
All rectus, inferior oblique
what is a normal reaction for the pupils to light?
constriction
reflexes: Accommodation
eye adaptation for near vision
- converge and constrict
pupillary light reflex
dark room, look in the distance, bring light from the side
(note pupil size as well)
pupillary light reflex: Direct light reflex
- constriction of same-sided pupil
pupillary light reflex:
Consensual light reflex
Simultaneous constriction of other pupil
what test do you do for Accommodation?
What is a normal response to it?
- focus on distant object, then shift gaze to near
- Normal response: pupillary constriction and convergence of eyes
Doccumentation: PERRLA
pupils equal, round, react to light and accommodate
a confrontation test is a..
visual field
Extraocular muscle function: Corneal light reflex
What CN tested?
What do we assess?
How do we assess?
CN V and VII
- assess parallel alignment of eyes
- Shine light and note symmetrical reflection on cornea
Extraocular muscle function: Cover test
What does it detect?
What is a normal response?
- detects deviated alignment
- Note covered and uncovered eye
- Normal response - steady fixed gaze
Extraocular muscle function: Diagnostic positions test (cardinal positions of gaze)
What do we say for a normal response?
- parallel tracking with both eyes
- if not, nerve or muscle dysfunction possible
Anisocoria
one eye dilated and other is constricted
Isocoria/miosis
both eyes extremely constricted
Mydriasis
Both eyes extremely dilated
developmental considerations for eye assessment
- Vaginal infections in pregnant person at delivery (herpes, gonorrhea)
- Developmental milestones of vision noted by parents
- Routine testing at school
- Awareness of safety measures to protect eyes
eye function is ________ at the beginning of life but gets _____ as on gets older
not good; better
Newborn eye problems: Excessive tearing
What can this indicate?
- this may indicate blocked tear ducts
Newborn eye problems: Red or encrusted eye lids
This could be a sign of an eye infection
Newborn eye problems: constant eye turning
What may this signal?
This may signal a problem with eye muscle control
Newborn eye problems: Extreme sensitivity to light
this can indicate what?
this may indicate an elevated pressure in the eye
Newborn eye problems: Appearance of a white pupil
This may indicate the presence of an eye cancer
Strabismus
eyes point in two different directions
developmental considerations: Aging adult
- Visual difficulty with driving, climbing stairs
- Last glaucoma test - loss of peripheral vision, aching pain
- History of cataracts - blurring vision
- Eyes feel dry, burning
- Decrease in visual activities - sewing, reading
aging adults: Decreased tear production
dry eyes
Arcus Senilis
Lipid material infiltrates around limbus
aging adult: pupil size will…
decrease
Presbyopia
what becomes physically hard?
decreased accommodation for near vision, lens hard, cannot change shape
3 main reasons for decreased visual functioning
cataract formation - opacity of lens
- glaucoma
- Macular degeneration
glaucoma
Increased what?
Gradual loss of what?
increased ocular pressure, gradual loss of peripheral vision
Macular degeneration
- loss of central vision common cause of blindness
Heal promotion for an adult (eye assessment)
early screenings for glaucoma - preventable
Risk factors for Cataracts (6 things)
- > 50 age
- prolong UV-B light
- Diabetes mellitus
- Cigarette, Heavy alcohol use
- High BP
- Diet low in Vit E and B
Risk factors for Glaucoma (5 things)
> 40 age
- Family history
- Race ethnicity - African ancestry, Caucasian, E. European
- Arteriosclerosis
- Myopia, Hyperopia
Risk factors for Macular Degeneration (6 things)
> 65 age
- Prolong UV-B light
- Female, Early Menopause Caucasians
- Cigarette, heavy alcohol use
- High BP
- High Fat diet
unexpected findings for eye assessment:
type of difficulty?
What is a RED FLAG
What can be a sudden onset?
- vision difficulty
- Pain (RED FLAG)
- Sudden onset = floaters, blind spot, loss of peripheral vision
unexpected findings for eye assessment: Strabismus/diplopia
crossed eyes, double vision
unexpected findings for eye assessment: Redness/sweling
infection
unexpected findings for eye assessment:
Watering/discharge
color. when present
common place for nosebleeds are in the
Kessel box plexus
Subjective data for the nose
- discharge
- frequent cold, upper respiratory infections
- sinus pain
- trauma
- epistaxis, nosebleeds
- allergies
- altered smell
Objective data for the nose
What is it called to look and touch?
What are we looking for when we look at the nose?
- inspect and palpate
- Symmetry, latency
- Nasal cavity
Subjective data: Mouth
- Sores or lesions
- Sore throat
- Bleeding gums
- Toothache
- Hoarseness
- Dysphagia
- Altered taste
- Health promotion
Risk factors for cancer of the Oral cavity
- use of tobacco products
- Alcohol use
- HPV
- UV radiation
- Born male
- > 55 of age
-poor oral hygiene - Poor diet
- Weak immune system
- Use of mouthwash with high alcohol content
- Irritation from dentures
objective data: Mouth
What do we inspect for?
What is the name of the palate and their description?
inspect for
- color
- moisture
- cracking
- lesions
Buccal mucosa
- palate - hard and soft
objective data: Teeth and gums
what condition are we looking for?
- condition - decay/color
- Number of teeth (any absent)
- occlusion - uppers rest on Lower - malocclusion
Objective data: Tongue
- color
- moist
- lesions
Objective data: palate
Description
What test do we do for what CN?
What is in the back of the throat and it’s description?
Palate
- anterior hard, posterior soft
- Uvula: fleshy pendent - midline
- Say “ah” tests cranial nerve X the vagus nerve
Objective Data: throat
- note color, exudate, lesions
- Check gag (CN IX, X)
- Breath odor
- Tonsils - free of exudate
- Grade:
1+ visible
2+ halfway between tonsils
3+ touching uvula
4+ touching each other
Newborn mouth assessment
No teeth, assess suck reflex, intact lip and palate
Macroglossia
enlarged tongue
leukoplakia
white spot on tongue
kopliks spot
white spots on the bottom lip, measles possibly
mucocele
mucus bubble near gums, benign and goes on its own
angular cheilitis
cracks on side of lips
- from denture use or too much saliva
furuncle
bubble filled with fluid in one of the noses, painful
ankyloglossia
a short frenulum (the line under your tongue)
malocclusion
top teeth don’t rest comfortable on the bottom teeth
Perforated septum
hole in septum
understand face anatomy bones for exam!
Face anatomy muscle movement is CN #?
CN VII