40 Microbiology: Eye Infections Flashcards
1
Q
Immune Privilege
- What 4 factors combine to limit the immune response in the eye?
A
2
Q
ACAID
- What is ACAID?
- What cells show an increased induction?
- Is this normal?
A
3
Q
Definitions
- What are the 4 main types of infections to the external structures of the eye?
- What are the 3 main types of infections to the internal structures of the eye?
A
4
Q
Conjunctivitis
- What is the most common cause of this?
- What is the most common in neonates?
A
5
Q
Conjunctivitis
- In the following age groups or symptoms, what is more common: viral or bacterial conjunctivitis?
- Younger than 12
- Older than 12
- Purulence
A
6
Q
Conjunctivitis
- What are the 2 main types of epidemiology for this?
- Transmission
- How do people get this?
- Dx
- What test is used?
A
7
Q
Viral Conjunctivitis: Adenovirus
- Corticosteroids
- Why should you hesitate when using this to treat this?
- What happens when healthcare workers get this?
A
8
Q
Viral Conjunctivitis: Adenovirus
- What is follicular conjunctivitis?
- What are follicles made of?
- What other viruses can cause this? (3)
- What os PCF?
A
9
Q
Epidemic keratoconjunctivitis
- What serotypes of adenovirus cause this?
- Where are infiltrates located?
- What type of symptoms can occur?
- What is seen on the eye?
- Are both eyes involved?
A
10
Q
Acute Hemorrhagic Conjunctivitis
- What 3 viruses can cause this?
- Where does the hemorrhage occur?
- How does this present?
- What can happen if:
- The infection does not go away in 5-7 days
- Steroids are used for treatment
- Why does this occur
- Who has the highest risk for this?
- How do you treat this?
A
11
Q
Ophthalmia neonaturom: Chlamydia Trachomatis
- How do neonates get this?
- How does this present
- When are do signs/symptoms start?
- Do mothers have to be positive for an infection for neonates to get this?
- Of infected infants
- How many have a subclinical infection?
- How many get conjunctivitis?
- How many develop pneumonia?
- Neisseria gonorrhoeae
- This can also cause Ophthalmia neonaturom.
- When does it present?
- Do mothers have to be positive for an infection for neonates to get this?
- Does this usually occur in both eyes?
- How do you treat it?
A
12
Q
Chlamydia Trachomatis
- How many serotypes cause conjunctivitis?
- How common is this?
- What other condition can this cause?
- How does this organism avoid being washed away by tears?
A
13
Q
What is the most important eye infection globally?
A
14
Q
Trachoma
- How does trachoma cause blindness?
- What kind inflammation occurs?
- How can this be prevented?
- How does this infect neonates?
A
15
Q
Trachoma
- What are the WHO guidelines for trachoma?
A
16
Q
Keratitis
- What 2 viruses can cause this?
- What nerve is implicated?
- What can happen to cornea?
A
17
Q
Keratitis
- When is a central corneal ulcer considered an emergency?
- Bacterial keratitis
- This is rare unless what layer of cells is breached?
- What 2 organisms can cause this?
- Which one is associated with contact use?
- Fungal keratitis
- What organism is associated with this?
- Where does it live
- Why would you suspect this?
- What organism is associated with this?
- Amoebic keratitis
A
18
Q
Orbital Cellulitis
- What tissue does this infect?
- What type of infection precedes 90% if infections
- Is this an emergency?
- What 2 organisms usually cause this?
- What about in unvaccinated patients?
- What about in aids patients?
- What about when a patient did not have a previous sinusitis infection ?
- When does this usually occur?
A
19
Q
Blephartis
- What do patients feel in their eye?
- What does the eye look like?
- What do the eyelashes look like?
- What is the loss of eyelashes called?
*
- What is the loss of eyelashes called?
A
20
Q
Blepharitis
- What bacteria can cause this?
- What 3 types of viruses can cause this?
- Which one is associated with children under 5?
- Which is associated with AIDS patients?
- How do viral cases typically present?
A
21
Q
Blepharitis
- What kind of mites can cause this?
A
22
Q
Styes
- What is another name for these?
- What external gland is implicated?
- What internal gland is implicated?
- What is a chalazion?
- What gland is it associated with?
A
23
Q
Toxoplasma gondii
- How can this protozoan cause blindness?
A
24
Q
Toxocara canis
- What animal is this worm associated with?
- Why does it cause blindness?
- How do you treat it?
A
25
Q
What is this?
A
Toxocara canis
26
Q
River Blindness
- What parasite causes this?
- What transmits this parasite?
- How do the larvae get into the eyes?
- Where is this common?
- What can the inflammatory response do?
A
