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Ocular Dx Exam 2 Parasitic Lid Disease
Ocular Disease Exam 2
39
Medical
Graduate
03/04/2011

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Cards

Term
What is the term for mites?
Definition
demodex/demodicosis
Term
Prevalence of demodex infestation?
Definition
0-25yo: 29%
26-50yo: 53%
51-90yo: 67%
Term
What are contributing factors for demodex infestation?
Definition
compromised immune system
Term
What can demodex be a vector for?
Definition
staph infections
Term
What shape are demodex folliculorum?
Definition
cigar shaped and colonial
Term
Where are demodex folliculorum found?
Definition
hair follicles
Term
What is a sign of demodex folliculorum infestation?
Definition
collarettes
Term
What is demodex folliculorum often confused with?
Definition
blepharitis
Term
What shape is demodex brevis?
Definition
short, stubby. Solitary
Term
Where is demodex brevis found?
Definition
Sebaceous glands; Zeiss glands
Term
What are side effects of demodex brevis infestation?
Definition
dry eye; chalazion
Term
What are objective signs of demodicosis?
Definition
erythema
conj injection
collarettes
plugged meibomian glands
madarosis
Term
What are subjective signs of demodicosis?
Definition
itching
burning
crusting
swelling of lid margins, lids 'stuck' in the morning
lash loss
Term
What are treatments for demodicosis?
Definition
aggressive lash scrubs
Ung hs x 10-14 days
teat tree oil
anti microbial tx
Term
What is Ung hs?
Definition
ointment
Term
What is pthiriasis palpebrarum?
Definition
a type of lice infestation
Term
What is pediculosis palpebrarum?
Definition
a type of lice infestation
Term
What dx can head lice be a vector for?
Definition
typhus
Term
What causes typhus?
Definition
rickettsia
Term
What lice are free moving; what lice are localized?
Definition
pediculus are free, pthirus are localized
Term
What type of lice are considered a sexually transmitted dx?
Definition
phthiriasis
Term
What is pediculosis capitus?
Definition
head lice
Term
What is pediculosis corporis?
Definition
body lice
Term
What are pthirus pubis?
Definition
crab louse
Term
What can cause itching, redeye, insomnia, irritability
Definition
lice
Term
What are tx for phthiriasis palpebrum/pediulosis
Definition
in office removal
Ung tid x 10-14 days for ocular tx
Term
What are topical ointments for tx of lice?
Definition
erythromycin
bacitracin
physostigmine used as insecticide
Term
What are pediculocidal agents safe for?
Definition
non ocular treatment of lice
Term
What are other considerations if pubic lice are found?
Definition
referral for dermatological treatment of other areas
If in children, sexual abuse possibilities
Term
Can head lice jump?
Definition
No
Term
Can head lice survive away from the head for several days?
Definition
False, die within 6 hrs to 1 day
Term
When infected with lice, do most people frequently scratch their head?
Definition
false
Term
Will delousing powder kill lice and their eggs?
Definition
No
Term
Can head lice live long term on hats or carpet?
Definition
No
Term
Should lice treatments be repeated one week after initial treatment?
Definition
yes
Term
Do lice discriminate about hair type/color?
Definition
no
Term
Do head lice crawl from head to head?
Definition
yes
Term
Must you thoroughly clean the house if a head lice infestation is found?
Definition
0
Term
Can pets spread head lice?
Definition
0
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