common conditions of the eyes & ear Flashcards

1
Q

AS

A

left ear

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1
Q

AD

A

right ear

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2
Q

AU

A

each ear

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3
Q

OD

A

right eye

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4
Q

OS

A

left eye

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5
Q

OU

A

each eye

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6
Q

A, O, D, S

A

latin…
A- ear
O- eye
D- right
S- left

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7
Q

eye and ear formulation

A

1 drop- 0.05 ml
suspension= shake well
ointment- can make vision blurry, do not use w/ contact lenses
gel: invert and shake once, get the med to the tip before instilling into eye

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8
Q

drugs that increase IOP

A
  • anticholinergics (antihistamines, oxybutynin, tolterodine, benztropine, scopolamine, trihexyphenidyl, TCAs)
  • decongestants
  • chronic steroids (esp. eye drops like prednisolone)
  • topiramate (topamax)
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9
Q

glaucoma tx goals

A
  • reduce aqueous humor production
    —> beta- blockers like timolol
    —> Carbonic anhydrase inhibitors, like dorzolamide
  • increase aqueous humor outflow
    —> prostaglandin analogs, like latanoprost
  • or, do both: often w/ add on tx
    —> alpha-2 agonists, like brimoindine
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10
Q

increase aqueous humor outflow

A

1 drop QHS
bimatoprost
latanoprost
travoprost

darkening of iris and eyelashes, eyelash length can increase

blurred vision, increased pigmentation of iris, eyelash

porst= prostaglandin analog

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11
Q

bimatoprost

A

Lumigan-
Latisse- indicated for eyelash growth- do not sue w/ prostaglandins analogs t indicated for glaucoma
- increase aqueous humor

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11
Q

latanoprost

+ netersudil

A

Xalatan, Xelros
+ Rocklatan
refrigerator before opening
- increase aqueous humor

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12
Q

travoprost

A

Travatan Z

Z- indicates different preservatives used
- increase aqueous humor

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13
Q

timolol
+ dorzolamide

A

timotic
.25% and .5%
+ cosopt

non-selective except betaxolol (betopic)
SE: burning, stinging, Brady/fatigue, bronchospasm
- reduce aqueous humor production

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14
Q

carbachol
pilocarpine

A

miostat
isopto carpinie

SE: poor vison at night due to pupil constriction
- cholinergic (miotic): increase aqueous humor outflow

15
Q

dorzolamide

A

trusopt
zolamide= be caution w/ suflonamide allergy
acetazolamide- used for the prevention and tx of acute mt altitude sickness
- carbonic anhydrase inhibitors: reduce aqueous humor production

16
Q

brimonidine

+ timolol

+ brinzolamide

A

lumify (otc) for ocular redness

Combigan

Simbrinza

  • adrenergic alpha 2 agonists: increase aqueous humor outflow, reduce aqueous humor production
17
Q

viral conjunctivitis

A

adenovirus- no topical tx
let infection run it’s course

18
Q

bacterial conjunctivitis
staph aureus
most severe neisseria gonorrhoeae or chlamydia (require systemic tx)

A

moxifloxacin (Vigamox)
neomycin/ polymyxin B./ dexamethasone (maxitrol)
ofloxacin (ocuflox)
trimethoprim/ polymyxin B (polytrim)

19
Q

allergic conjunctivitis

A

olopatadine (pataday) otc
ketotifen (alaway, zaditor) otc
azelastine

20
Q

Why do eyedrops burn

A
  • Preservatives such as benzalkonium chloride (BAK)
  • contact lenses (put them back in 15 min after not before) BAK can cause eye damage if contact lenses are in
  • preservative formulations are available: cosopt PF (PF- preservative free).. z in
21
Q

inflammation

A

steroids: prednisolone (pred forte, pred mild)
NSAID: ketorolac (acular)

22
Q

Dryness

A

refresh (otc)
systane (otc)

23
chronic dry eyes disease
cyclosporine emulsions eye drops (Restasis)
24
redness
naphazoline (clear eye redness relief)- otc naphazoline/ pheniramine (naphcon A, Visine A) tetrahydrozoline (Visine)- otc
25
common drug known to cause vision changes or damage Retinal changes/ retinopathy
choroquine hydroxychloroquine
26
common drug known to cause vision changes or damage optic neuropathy
amiodarone (plus corneal deposits) ethambutol linezolid
27
common drug known to cause vision changes or damage intraoperative floppy iris syndrome, causes difficulty in cataract surgery
alpha-blockers (tamsulosin)
28
common drug known to cause vision changes or damage color discrimination
digoxin (w/ tox)- yellow/green vision PDE-5 inhibitors (sildenafil) greenish tinge around objects voriconazole- color vision changes
29
common drug known to cause vision changes or damage vision loss/abnormal vision
digoxin (w/tox)- blurriness, halos PDE-5 inhibitors- vision loss (one or both eyes; can be permanent) isotretinoin- decrease night vision (can be permanent), dryness irritation topiramate- visual field defects vigabatrin- permanent vision loss (high risk) voriconazole- abnormal vision, photophobia