424--Quiz 2 (eye/ear disorders) Flashcards Preview

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Flashcards in 424--Quiz 2 (eye/ear disorders) Deck (20):
1

Conjunctivitis--types, S/S, & management.

Viral (adenovirus & flu)--viral illness going on at same time.
Bacterial (staph, NB chlamydia & gonorrhea)--itchy, pink, no pain, yellow/crusty discharge.
Allergic--itchy, swollen, no pain, watery discharge.
Nx: ed., hand-washing, warm compress, ABX only for bacterial.

2

Nasolacrimal duct obstruction

= clogged tear duct, unilateral, usu resolve in 1 yr.
S/S: chronic tearing, mucopurulent discharge.
Tx: massage, watchful-waiting, ABX if infected.

3

Eye lid disorders--list

Hordeolum, chalazion, blepharitis.

4

Hordeolum

= (eyelid disorder) infect sebaceous gland of eyelid, external "sty" in eye.
S/S: painFUL.
Tx: ABX.

5

Chalazion

= (eyelid disorder) chronic infect meibomian gland of eyelid, internal "sty" in eye.
S/S: painLESS.
Tx: resolves on own.

6

Blepharitis

= (eyelid disorder) swelling eyelid.
S/S: scaling/discharge along eyelid margin.
Tx: ABX.

7

Periorbital cellulitis

= bact infect eyelid & tissue around eye d/t bug bites/scratch.
Tx: warm soak, ABX (maybe IV).

8

Visual disturbances--list

Refractive errors, astigmatism, strabismus, amblyopia, nystagmus, infantile glaucoma, congenital cataracts, retinopathy of prematurity, visual impairment

9

Refractive errors

= most common cause of visual disturbances.

10

Astigmatism

= (visual disturbance) uneven curvature of cornea ==> light enters eye unevenly.

11

Strabismus

= (visual disturbance) misalignment of eyes.
Exotropia = eyes turn OUTward.
Esotropia = eyes turn INward.
Dx: cover test, CLR (corneal-light reflex)

12

Amblyopia

= (visual disturbance) "lazy-eye," poor visual development in a normal eye, eye & brain not communicating together, may be caused by differences btw 2 eyes (ex: astigmatism, strabismus, diff visual acuity).
Tx: patch, vision therapy, surgery if caused by strabismus.

13

Nystagmus

= (visual disturbance) irreg rapid eye movement, usually d/t neuro problem.
Dx: see in EOM exam.

14

Infantile glaucoma

= (visual disturbance) obstruct flow aqueous humor ==> increased intraocular P.
Tx: surgery.

15

Congenital cataracts

= (visual disturbance) opacity of eye(s) at birth, ==> amblyopia is unTx'ed.

16

Retinopathy of prematurity

= (visual disturbance) abnorm vessel devel in retina of premature baby

17

Visual impairment

= (visual disturbance) acuity 20/60 - 20/200. Legal blind >20/200.
Nx: ed. parents regarding how to promote development despite visual impairment.

18

Acute otitis media/otitis media w/ effusion

Usually viral, can be bacterial (Tx: ABX). Usually age 1-2 d/t position of Eustachian tubes.
Prevent: breastfeed, no bottles in bed, no 2nd hand smoke.

19

Otitis externa

= "swimmer's ear" infect outer ear.
Tx: gtts.
Nx: ed. warm gtts in hands, drop onto edge so can trickle down (if hit ear drum = painful), lie down 10 mins.

20

Hearing loss

Condutive = sound doesn't transmit to middle ear, usu wax/toy obstructing.
Sensorineural = damaged hair cells in cochlea.
Dx: Weber test (bone conduction), Rinne (air conduction--should be 2x longer than bone).