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EYES (unit 1 HEENT)
CMDT Ch. 7
128
Health Care
Graduate
08/31/2013

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Term
Leading cause of blindness in the U.S. is?
Definition
Diabetic Retinopathy
Term
2nd leading cause of blindness in the U.S.
Definition
Glaucoma
Term
3rd leading cause of blindness in the U.S.
Definition
Cataracts
Term
What condition is characterized by red eye, watery discharge, excessive tearing and FB sensation?
Definition
Viral conjunctivitis
Term
Most common pathogen for viral conjunctivitis is? name 2 others.
Definition
Adenovirus (others: HSV, coxsackie, VZV, EBV, influenza)
Term
What symptoms would you see with a person that has pharyngoconjunctival fever? (associated with viral conjunctivitis). How long does this condition last?
Definition
1. fever of 101 or higher
2. malaise
3. preauricular adenopathy
4. sore throat.
lasts approx 10 days.
Term
What is the treatment for viral conjunctivitis?
Definition
1. cold compress
2. topical sulfa abx to prevent 2ndary infection
3. acyclovir for HSV
Term
What is the key characteristics of vernal allergic conjunctivitis?
Definition
cobblestone papillae
Term
When is vernal conjunctivitis most common?
Definition
1. late childhood/early adulthood
2. spring/summer
Term
Stringy rope like discharge with a (pale to milky) red eye, hyperemia and sudden chemosis is characteristic of what condition?
Definition
Allergy conjunctivitis
Term
What is atopic keratoconjunctivitis? key characteristic? how is treatment different from vernal?
Definition
1. allergic conjunctivitis-chronic and occuring in adulthood.
2. characterized by: fine papillary conjunctivitis (lower lid), entropion, trichiasis
3. SYSTEMIC anti-histamine
Term
What is the most common infection that causes blindness world wide?
Definition
Trachoma - chlamydial keratoconunctivitis.
Term
What type of bacterial conjunctivitis is considered an ophthalmologic emergeny? why?
Definition
1. Gonococcal conjunctivitis
2. involves corneal and can lead to rapid perforation of cornea
Term
What is medication treatment for Gonococcal Conjunctivitis?
Definition
1g dose IM ceftriaxone

(can also give topical erythromycin and bacitracin)
Term
bilateral glued eyes upon waking and copious purulent discharge are characteristics signs of what condition?
Definition
Bacterial conjunctivitis.
Term
what is treatment for chlamydial keratoconjunctivitis?
Definition
oral azithrmycin
Term
What is keratoconjunctivitis sicca? Who is most likely to have this? what medical condition presents with this condition?
Definition
(aka dry eyes)
1. females
2. anticholinergic medications
3. imbalance in tear production
4. Sjogren syndrome (auto immune)
Term
What is closed angle glaucoma?
Definition
obstruction of flow of aqueous fluid in the ant. chamber causing increase in IOP.
Term
Asians/Inuits, Elderly and those who are farsighted are predisposed to what type of glaucoma?
Definition
primary closed angle glaucoma
Term
What condition is characterized by extreme pain, cloudy cornea, fixed dilated pupils and blurry vision with halos?
Definition
Primary closed angle glaucoma
Term
increased IOP of > 50mmHg is indicative of what condition?
Definition
primary closed angle glaucoma
Term
what is the most common form of glaucoma?
Definition
primary OPEN angle glaucoma
Term
Elderly, African Americans, Diabetics, and strong family history predisposes one to what condition?
Definition
primary OPEN angle glaucoma
Term
Progressive "cupping" of optic disc is present in what type of glaucoma?
Definition
primary OPEN angle glaucoma
Term
progressive loss of visual fields aka TUNNEL VISION is key in what condition?
Definition
primary OPEN angle glaucoma
Term
What is open angle glaucoma?
Definition
increased IOP due to reduced drainage of aqueous fluid
Term
Primary closed angle glaucoma usually affects just one or both eyes?
Definition
UNIlateral
Term
primary OPEN angle glaucoma usually affects just one or both eyes?
Definition
bilateral
Term
what is medication/tx for primary CLOSED angle glaucoma?
Definition
500MG IV acetazolamide then 250mg PO QID
Term
What are 3 key physical/objective findings that you would find in primary OPEN angle glaucoma?
Definition
1. increased IOP > 21mmHg
2. optic disc cupping> 0.3 or asymmetry of discs.
3. normal ant chamber angle
Term
what is first line treatment for primary OPEN angle glaucoma?
Definition
prostaglanin analogs

-also do topical beta-adrengeric blocking agents
-carbonic anhydrase inhibitors
-surgical tabeculectomy (especially for asthma and HF pts so no vasoconstriction)
Term
Secondary OPEN angle glaucoma can result from what 3 things? what about secondary CLOSED angle glaucoma?
Definition
OPEN
1. uveitis
2. ocular trauma
3. corticosteroid therapy (any route)

CLOSED:
1. ant. uveitis
2. dislocation lens
3. topiramate therapy (seizure medication)
Term
What procedure can be done for primary CLOSED angle glaucoma as prophylaxis for the other eye?
Definition
iridoplasty (using laser to burn small holes in peripheral of iris to widen the anterior chamber)
Term
What is surgical trabeculectomy? what is it used to treat?
Definition
removal of some of eye's trabecular meshwork. used to treat primary OPEN angle glaucoma.
Term
What complication can occur as a result of untreated primary closed angle glaucoma?
Definition
vision loss if untreated in 2-5 days.
Term
what is normal IOP in the eye?
Definition
10-21mmHg
Term
What is normal cup to disk ratio? abnormal?
Definition
normal = 0.3
abnormal = 0.5 or asymmetrical
Term
Goldman tonometer determines how much force or pressure is needed to flatten the cornea. a higher reading says what about pressure?
Definition
higher pressure
Term
Shiotz tonometer uses an indention type pressure to pick up a reading. a lower reading says what about pressure?
Definition
lower reading = higher pressure
Term
What are the risk factors for cataracts?
Definition
1. african american
2. smoking
3. exposure to ionizing radiation (xrays and sunlight)
4. diabetes
Term
What are the 3 types of cataracts?
Definition
1. cortical
2. nuclear
3. posterior subscapular
Term
"Myopic shift" and yellow or brown (brunescent)discoloration of the central lens is characteristic of what?
Definition
Nuclear cataracts
Term
difficulty reading, seeing glare especially when driving at night is characteristic of?
Definition
posterior subscapsular cataract
Term
Posterior subcapsular cataracts are associated with what systemic conditions or other injuries?
Definition
1. diabetes
2. trauma/inflammation of the eye
Term
Opaque lens, no red reflex, decreased visual acuity, decrease color vision especially to blue are signs of what?
Definition
cortical cataracts
Term
Systemic hypertension is a significant risk factor for what type of cataract?
Definition
posterior subcapsular cataract
Term
Acute nongranulomatous anterior uveitis (aka iritis) is caused by what 3 immunologic conditions?
Definition
1. Crohn Disease
2. reactive arthritis
3. ulcerative colitis
Term
What are the immunologic causes of granulomatous anterior uveitis (iritis) and posterior uveitis (choroiditis)?
Definition
1. sarcoidosis
2. toxoplasmosis
3. tuberculosis
4. syphilis
Term
Anterior uveitis generally affects one or both eyes?
Definition
UNIlateral
Term
posterior uveritis commonly affects one or both eyes?
Definition
bilateral
Term
What are key signs and symptoms of anterior uveritis (nongranulomatous)
Definition
1. acute pain
2. unilateral eye
3. pain, redness
4. PHOTOPHOBIA
5. visual loss
6. hypopon
7. small irregular pupil
-NO IRIS NODULES (found in granulamatous ant uveitis)
Term
Describe the type of vision loss you'd expect to see in a patient with anterior or posterior uveitis.
Definition
1. anterior (nongranuloma) = vision loss
2. anterior (granuloma) = blurry vision with VERY inflamed eye
3. posterior = gradual vision loss bilaterally
Term
Large "mutton fat" keratic precipitates on the corneal epithelium and IRIS nodules with hypopyon are characteristic of what condition?
Definition
anterior uveitis (granulomatous)
Term
yellow lesions with indistinct margins on fundocopic exam are indicative of what condition?
Definition
Posterior uveitis (choroiditis)
Term
What is the treatment plan for all types of uveitis?
Definition
1. refer to ophthalma (urgently for acute nongranulomatous)
2. acute = topical corticosteroids
3. posterior = systemic perocular or intravitreal corticosteroid therapy
Term
ptosis is...?
Definition
dropping of the upper eyelid > 2mm below corneal margin.
Term
Ptosis can be associated/caused by what systemic conditions?
Definition
1. Myasthenia gravis (damage to oculomotor nerve)
2. Horner's syndrome (damage to sympathetic nerve)
3. 3rd nerve palsy
Term
Ptosis is accentuated when the patient gazes which way?
Definition
downward
Term
What are the 5 types of ptosis?
Definition
1. involutional (aponeurotic)
2. mechanical
3. myogenic
4. neutrogenic
5. congenital
Term
what is involutional (aponeurotic) ptosis caused by?
Definition
aging, surgery, or trauma. good levator function
Term
What is mechanical ptosis caused by?
Definition
1. mass effects of tumor
2. dermatochalsis (scarring)
3. blepharochaisis (scarring)
Term
What is myogenic ptosis caused by?
Definition
muscle disorder ie. myotonic dystrophy.
POOR levator function
Term
What is neurogenic ptosis caused by?
Definition
faulty innervation to the levator
1. CN 3 palsy
2. Horner's syndrome
3. MS
levator function varies
Term
What is congenital ptosis caused by?
Definition
usually myogenic and UNILATERAL due to fibrosis and fat infiltration of the levator muscle. POOR levator function.
Term
What is treatment for ptosis?
Definition
refer to ophthalmology, surgical correction depending on the extent.
Term
What is entropion?
Definition
inward turning of the eyelid
Term
What causes entropion?
Definition
occasionally in older people with aging as result of degeneration of the lid fasica *per lecture notes- most common in young adults*
Term
A person with pain, burning, tearing, FB sensation and trichiasis would likely have what condition? What complications might this person face and what are possible treatment plans?
Definition
1. entropion
2. scarring of the cornea
3. (A) lid eversion with tape (if mild)
(B) surgery
(C) Botox
Term
What is ectropion?
Definition
outward turning of the lower eyelid
Term
What causes ectropion?
Definition
common with advanced aging
Term
What is a key physical complaint in a patient with ectropion?
Definition
epiphora (excessive tearing) b/c no longer draining properly.
Term
When would surgery be indicated for a patient with ectropion?
Definition
1. excessive tearing
2. exposure keratitis
3. cosmetic problems
Term
what is anterior blepharitis?
Definition
inflammation of eyelid, skin, lashes and associated glands
Term
what is posterior blepharitis?
Definition
dysfunction of meibomian gland orifice
Term
What is the primary pathogen found in blepharitis?
Definition
staph
Term
What are key characteristics of anterior blepharitis?
Definition
1. RED RIMMED eyes
2. scales or granulations clinging to the eyelash (flaky = ulcerative, seborrheic if meibomian)
3. possible trichiasis
Term
What are key characteristics of posterior blepharitis?
Definition
1. DRY EYES
2. acneforms (acne roscea associated with blepharitis)
3. mild entropion
4. GREASY FROTHY TEARS or dry filmy eyes with "toothpaste like material"
Term
Patient presents with scales or granulations seen clinging to eyelashes. what condition is this?
Definition
anterior blepharitis.
Term
patient presents with greasy frothy tears, dry eye, and mild entropion. what condition is this?
Definition
posterior blepharitis
Term
How would you treat anterior blepharitis?
Definition
1. warm compress and remove scales
2. eye hygiene
3. abx only with acute cases
Term
How would you treat posterior blepharitis?
Definition
1. express secretions
2. artificial tears
3. systemic abx or NSAIDS
4. check for corneal damage
Term
Dacrocytosis is most commonly seen in what age group(s)?
Definition
infants and people > 40 y/o
Term
what is dacrocytosis?
Definition
infection of lacrimal sac. can be acute or chronic
Term
In acute dacrocytosis, you will experience pain, tenderness, and purulent discharge. what is important NOT to do for acute cases?
Definition
do NOT probe the lacrimal system
Term
what is the difference in symptoms of acute versus chronic dacrocytosis?
Definition
1. acute = painful and poss red
2. chronic = not painful or red
Term
In a patient with dacrocytosis, what should you also look for to try and rule out possible underlying orbital cellulitis?
Definition
look for proptosis and check EOMs.
Term
What is the difference in treatment between afebrile patient with dacrocytosis?
Definition
1. afebrile (no fever) = oral abx and RTC daily for recheck
2. febrile (fever) = hospitalize and IV Abx
Term
once acute phase of dacrocytosis is over, patient is candidate for what treatment?
Definition
surgery.
Term
What is orbital cellulitis?
Definition
inflammation of eye tissues posterior to the orbital septum. (spread into eye socket from adjacent sinuses or through the blood)
Term
What are common pathogens found in orbital cellulitis?
Definition
1. S. pneumonia
2. H. influenza
3. less common S. aureus

**Think or organisms that affect sinuses**
Term
Orbital cellulitis is characterized by what signs and symptoms?
Definition
1. abrupt onset fever
2. PROPTOSIS
3. restricted EOMs
4. swelling and redness of lids
Term
Orbital cellulitis is often a result of what conditions/events?
Definition
1. infection of paranasal sinuses
2. extension of local infection (dacrocystitis, tooth abscess)
3. post trauma
4. post surgery
Term
treatment for orbital cellulitis?
Definition
1. IMMEDIATE referral to ophthalmologist.
2. IMMEDIATE IV Abx. usually a type of PCN (ie. nafcillin) poss in addition to metronidazole or clindamycin.
3. consider clinda or vancomycin for suspected MRSA
Term
Hordeolum is...?
Definition
staph infection/abscess of the eyelid margin (external) or the meibomian gland (internal)
Term
How is a hordeolum different than a chalazion?
Definition
1. TENDERNESS! (hordeolum is tender. chalazion is not)
2. POINT (hordeolum comes to a point, chalazion does not)
3. DEPTH (hordeolum is superficial, chalazion is deeper)
4. hordeolum is an infection, chalazion is inflammation
Term
Signs and symptoms of a hordeolum?
Definition
1. red localized tenderness and swelling upper or lower lid
2. "pimple" on the eyelid
3. comes to a point
4. superficial
Term
signs and symptoms of chalazion?
Definition
1. hard, NONTENDER, swelling of meibomian gland either upper or lower eyelid
2. slight redness
3. mild inflammation
4. poss serous oily fluid secreted not pus
Term
Treatment for hordeolum?
Definition
1. warm compress QID
2. I+D if not resolved in 48hrs
3. Abx (erythromycin or bacitracin) q3hrs.
Term
Treatment for chalazion?
Definition
1. corticosteriod injection (remember this condition is caused by inflammation and corticosteroids help bring down inflammation- not an infection so no Abx needed unless it is very deep)
2. according to CMDT (pg. 163) usually I&D (would be done by ophthalmalogist)
Term
A yellow nodule on the nasal side of the eye after prolonged exposure to wind, sun, sand, or dust is indicative of what condition?
Definition
pinguecula
Term
What treatment would you recommend for a patient that presents with a yellow nodule on the nasal side of the eye after prolonged exposure to wind, sun, sand, or dust?
Definition
1. no treatment needed, rarely grows
2. avoid sun/dust/wind/sand / UV light (use sunglasses/hat etc)
3. artificial tears may be beneficial
Term
What is the difference between a pinguecula and a pterygium?
Definition
pinguecula is yellow nodula, avascular, that stops at the border of the iris.

pterygium is a fleshy triangular encroachment of conjunctiva, has its own blood supply, and EXTENDS INTO THE IRIS
Term
What is treatment plan for pterygium?
Definition
1. no treatment necessary
2. artificial tears are beneficial
3. according to CDT pg. 167-short course of topical NSAIDS or wear corticosteroids may be necessary
3. excision/surgery
Term
When is surgery indicated for patient with pterygium? What is the concern/complication with performing surgery on the pterygium?
Definition
1. if growth threatens vision by encroaching on visual axis
2. marked induced astigmatism
3. severe ocular irritation

Recurrence is common and often more aggressive (comes back worse) than primary lesion!
Term
What is subconjunctival hemorrhage?
Definition
rupture of small conjunctival vessels
Term
Subconjunctival hemorrhage can be caused spontaneously in what instances/with that diseases?
Definition
1. HTN (hypertension)
2. coughing
3. straining / valsalva manuever (like straining to poop! haha)
4. bleeding disorders
5. atherosclerosis
Term
subconjunctival hemorrhage can be caused post traumatically after what kind of trauma?
Definition
1. blunt-eye trauma
2. foreign body
3. penetrating injury
Term
what are important history questions to ask a patient with subconjuntival hemorrhage?
Definition
1. any previous occurance?
2. any use of aspirin?
3. any hx of trauma?
Term
What are signs and symptoms of subconjunctival hemorrhage?
Definition
1. well demarcated bright red patch on the sclera.
2. mild to no pain. no vision disturbances. PEARL
Term
What are you worried about for a person with recurrent subconjunctival hemorrhages?
Definition
bleeding disorder
Term
In a person with subconjunctival hemorrhages, you should always check what things to rule out orbital cellulitis?
Definition
1. proptosis
2. EOMs
3. IOP
Term
What is the treatment for subconjunctival hemorrhages?
Definition
1. reassurance. scary looking but they'll be ok.
2. hemorrhage will reabsorb in 2-3 weeks
3. warm compress or lubricating drops may help relief any symptoms
Term
Contact wearers are most at risk for infection by what pathogen? What condition does it lead to?
Definition
1. Pseudomonas aeruginosa
2. bacterial keratitis
Term
Key s/s of bacterial keratitis?
Definition
HAZY cornea with CENTRAL ULCER and hypopon
Term
Bacterial keratitis has what precipitating factors?
Definition
1. contact lens wear (esp. overnight)
2. corneal trauma (ie. refractive surgery)
Term
What is the most common cause of corneal ulceration?
Definition
HSV
Term
What is a key physical finding in someone with herpetic/herpes simplex keratitis?
Definition
dendritic ulcer on the cornea best visualized after staining.
Term
HSV colonizes the trigeminal ganglion so reoccurances my be precipitated by what conditions?
Definition
1. fever
2. stress
3. overexposure to UV light
4. local or systemic immunodeficiency
Term
symptoms of corneal abrasion?
Definition
1. severe pain and photophobia
2. irritation with lid movement
3. abrasion seen w/dye
4. circumcorneal redness (injection)
Term
symptoms of corneal FB?
Definition
1. "something in my eye"
2. pain and irritation with lid movement
3. photophobia
4. circumcorneal redness (injection)
5. blepharospams
6. reactive myopia (constriction of pupils)
Term
for metal FB in eye- you should be concerned with what?
Definition
making sure rust ring is removed
Term
what do you suspect in a patient that presents with recent history of trauma to the eye such as with fingernail, piece of paper, or contact lens? What symptoms do they complain of?
Definition
1. corneal abrasion
2. severe pain and photophobia
Term
what is treatment for corneal abrasion?
Definition
1. polymyxin-bacitracin ophthalmic ointment (Abx)
2. mydriatic (this is cycloplegic) (cyclopentolate 1%)
3. topical or oral analgesic
Term
Under what conditions would you refer a patient with a corneal FB to an ophthalmologist
Definition
1. if FB can not be removed
2. if you suspect corneal infection
3. FB in there > 24hrs.
Term
Medication treatment for corneal FB?
Definition
polymxin-bacitracin (abx drops)
Term
Treatment for bacterial keratitis?
Definition
Fluoroquinoles (ie. levoflaxin) hourly day and night x 48hrs.

-use cephalosporin if gram +
-use aminoglycoside if gram -
Term
HSV is self limiting. Patients with this condition should avoid/be careful of what type of medication? Why?
Definition
1. avoid/careful monitoring of corticosteroids
2. it can lead to scarring of the cornea and enhances viral replication
Term
What is the treatment for HS keratitis?
Definition
1. urgent referral to ophthalm.
2. topical antiviral
3. oral acyclovir
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