Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
102 Cards in this Set
- Front
- Back
what is hyperemia?
|
hyperemia = injection = congestion of BV = redness
|
|
What must you evaluate when the eye is red?
|
1) which layer?
2) how much? how bad? 3) how is it distributed? |
|
types of discharge?
|
1) mucopurulent/purulent
2) ropy/stringy 3) tearing 4) serous |
|
is mucopurulent discharge a thin or thick material?
|
thick material
|
|
color of mucopurulent dicharge?
|
varies from white to cream to yellow to green
|
|
what is mucopurulent discharge associated with?
|
associated w/ BACTERIAL and less commonly fungal infxns
|
|
what type of discharge often has an offensive odor?
|
mucopurulent discharge
|
|
what is ropy/stringy discharge?
|
serous discharge w/ mucus threads
|
|
what is ropy/stringy discharge associated with?
|
associated w/ allergic and vernal conjunctivitis
|
|
Patients may complain of excess tearing that is not associated with infection. Describe the viscosity of this type of discharge.
|
Tearing discharge has SAME viscosity as regular tears
|
|
what is serous discharge?
|
thick tears
|
|
The diff b/w ___ and ___ discharge is subtle and does not have significant diagnostic value, but it is important to recognize descriptive terms that may be used to describe a clinical presentation
|
tearing;
serous |
|
is papilla a specific or nonspecific response?
|
nonspecific response
|
|
what causes papilla?
|
caused by many acute and chronic INFLAMMATORY disorders
|
|
What is the histopathological definition of a papilla?
|
diffuse infiltration (exudation/leakage) of various types of inflammatory cells into the conjunctival stroma (lymphocytes, PMNs, plasma cells, eosinophils)
|
|
___ is primarily comprised of blood-borne inflammatory exudate
|
a papilla
|
|
what is serous discharge often associated with?
|
associated with viral infxns
|
|
which has a central blood vessel, papilla or follicle?
|
papilla
|
|
the central blood vessel in papilla is the origin of the _________
|
focal exudation
|
|
what is papilla associated with?
|
1) allergic disease
2) bacterial disease 3) Chlamydia |
|
what type of response is seen in adults with Chlamydia?
children with Chlamydia? |
adults - mixed follicular and papillary response
children - papillae only (lymph system not fully developed) |
|
papillae are often seen in what part of the eye?
|
superior palpebral
|
|
what is the histopathological definition of a follicle?
|
focal hyperplasia (swelling/overgrowth) of lymphoid tissue
|
|
_______ are slightly milky, translucent lobular projections
|
follicles
|
|
which are USUALLY larger, papilla or follicles?
|
follicles
|
|
where do follicles arise from?
|
pre-existing avascular lymphoid tissue in the conjunctival stroma
|
|
which are avascular, papilla or follicles?
|
follicles
|
|
what is in the central core of follicles?
|
immature lymphocytes and macrophages with surrounding mature lymphocytes
|
|
follicles are more common in what part of the eye?
|
lower fornix
|
|
what are follicles often associated with?
|
1) viral disease
2) Chlamydia (in adults only) 3) toxic conditions |
|
Staining shows areas of corneal ____
|
epithelial breakdown
|
|
staining usually refers to _____ unless otherwise specified
|
NaFl
|
|
NaFl represents areas where _______
|
epithelial cells are missing
|
|
which stain is a true stain?
|
Rose Bengal
|
|
Rose Bengal represents areas of ____
|
dead/dying epithelial cells and mucus
|
|
what is it called when staining is observed in a punctate fashion?
|
PEK, SPK, or PEE
|
|
PEK =
|
punctate epithelial keratopathy
|
|
SPK =
|
superficial punctate keratitis
|
|
PEE =
|
punctate epithelial erosions
same as PEK! |
|
What does PEK refer to?
|
refers to any breakdown of epithelium
|
|
____ is a catch-all term most clinicians use most frequently to refer to epithelial disruption
|
SPK
|
|
what is SPK?
|
epitheliopathy secondary to infectious process
|
|
Compare Rose Bengal and Lissamine Green
|
they are used for similar clinical situations. but Lissamine Green is not as good at detecting herpes simplex keratitis
|
|
Lissamine Green is best for ______ staining
|
dry eye syndrome
|
|
what does trace staining mean?
|
there are only a very tiny few punctate staining areas (tiny dots of staining)
|
|
Tx for trace staining?
|
usually requires NO Tx other than AT
|
|
T/F: AT are used in nearly all cases of corneal staining as supportive therapy
|
True
|
|
what is 1+ staining equivalent to?
|
MILD staining
|
|
Tx for mild staining?
|
1) if cause is INFLAMMATORY and there is NO threat of bacterial load --> steroid
2) if cause is INFLAMMATORY and there is a threat of bacterial load --> steroid-antibiotic combo |
|
moderate staining = ____+ staining
|
2-3+
|
|
Tx for moderate staining?
|
1) if the cause is INFECTIONS --> Tx the infxn 1st. no steroids on 1st day
2) if the cause is INFLAMMATORY --> steroid-antibiotic combo |
|
Tx for severe staining?
|
1) if cause is INFECTIONS --> Tx the infxn b4 adding a steroid later
2) other causes --> protect the cornea (use prophylactic antibiotic) until it is healed enough to use a combo or a steroid |
|
what is chemosis?
|
conjunctival swelling (see w/ a variety of diseases and disorders)
|
|
is chemosis a specific or non-specific response?
|
non-specific
|
|
A/C rxn refers to ____ w/in the anterior chamber/aqueous
|
inflammation
|
|
what is A/C rxn associated with?
|
1) any moderate to severe insult to the eye (trauma, severe infxn, postsurgery)
2) systemic infxns 3) autoimmune diseases |
|
hallmark features of A/C rxn?
|
cells (WBC) and flare (proteins) in the AC from leaking blood vessels in the uveal tract
|
|
what does PAN signify?
|
signifies acute or severe inflammation
|
|
______ is a swollen, palpable, and/or tender area just in front of the ear
|
PAN (preauricular lymph node)
|
|
what is PAN associated with?
|
1) viral eye diseases
2) severe bacterial eye diseases |
|
examples of severe bacterial eye diseases that PAN is associated with?
|
severe internal hordeolum/preseptal cellulitis
gonococcal hyperacute conjunctivitis |
|
PAN is located just anterior to the ___
|
flap covering the ear opening
|
|
if there is severe eye infxn, ____ glands are involved as well.These are the swollen glands that are often present during a cold or upper respiratory tract infxn (URTI)
|
submandibular
|
|
manifestations of corneal edema?
|
1) ground glass or vaguely opaque appearance in the stroma
2) epithelial microcysts 3) stromal striae 4) gross clouding of the entire cornea 5) bullous keratopathy |
|
what do epithelial microcysts indicate?
|
corneal edema
|
|
what do stromal striae indicate?
|
corneal edema
|
|
what does bullous keratopathy indicate?
|
corneal edema
|
|
what is the best way to see corneal edema?
|
with a very thin, sharply focused optic section
|
|
what is corneal edema associated with?
|
a variety of degenerative, dystrophic, inflammatory, and infectious conditions
|
|
what contributes to eyelid swelling?
|
increased vascular permeability and vessel dilation
|
|
what is protective ptosis?
|
when the upper eyelid partially closes to protect the cornea
|
|
SEI =
|
subepithelial infiltrates
CORNEAL infiltrates |
|
SEI occur in what part of the eye?
|
the superficial corneal stroma, just beneath the epithelium
|
|
how do SEI look like?
|
gray-white
|
|
what is the histopathological definition of SEI?
|
infiltration of WBCs out of the limbal BVs into the subepithelial space in response to some insult (infxn, inflammation)
|
|
____ often form as sequelae to PEK, producing a more intense epithelial-subepithelial involvement
|
infiltrates
|
|
Often, the epithelium will heal 1st, leaving the ______
|
subepithelial infiltrates
|
|
what is a sterile ulcer
|
- INFILTRATE
-epithelial erosion that is caused by any process OTHER THAN AN INFXN |
|
infiltration in CONJUNCTIVAL stroma=
|
papilla
|
|
infiltration in CORNEAL stroma =
|
SEI
|
|
1) small areas of epithelial loss =
2) larger, geographical areas (not pinpoint) areas of epithelial loss = |
1) PEK
2) ulcer |
|
what is a true ulcer?
|
when the SURFACE of a tissue or organ has been eroded or otherwise damaged, in a measurable area
|
|
describe the types of ulcers
|
1) sterile = non-infectious
2) infectious = bacterial, fungal, viral, or protozoan |
|
what is the most common type of sterile ulcer? describe it
|
shield ulcer - large areas of corneal epithelium removed by scraping from giant papilla on upper lids
|
|
infections that cause corneal ulcers are collectively called ______
|
microbial keratitis
|
|
typically, a corneal ulcer refers to __________
|
an infectious process
|
|
most common cause of corneal ulcer?
|
bacterial keratitis
|
|
another name for petechial hemorrhages?
|
punctate hemorrhages
|
|
what are petechial hemorrhages?
|
pinpoint or splotchhy hemorrhages
|
|
petechial hemorrhages are usually found in what part of the eye?
|
superficial palpebral or bulbar conj
|
|
what are petechial hemorrhages associated with?
|
associated w/ any moderate to sever inflammation or infxn
|
|
____ are sometimes seen in scuba divers after a deep dive
|
petechial hemorrhages
|
|
____ are sometimes seen after a bout of crying/eye rubbing OR in patients w/ poor sleep habits
|
petechial hemorrhages
|
|
what are the 2 things that the word 'filament' refers to
|
1) mucus strands in the tear film
2) filaments associated w/ filamentary keratitis (result of aberrant epithelial healing from any epithelial disorder) |
|
what is a pseudomembrane?
|
conjunctival epithelial hyperplasia
|
|
causes of pseudomembrane?
|
severe infxn or inflammation
|
|
what are true membranes?
|
fibrin cellular debris
|
|
which indicate an even MORE severe inflammatory response, pseudo or true membranes?
|
true membranes
|
|
which cause significant bleeding when peeled from the conj, pseudo or true membranes?
|
true membranes
|
|
what is the end result of a wide variety of severe inflammations?
|
conjunctival scarring
|
|
name some of the things that conjunctival scarring can cause
|
1) entropian
2) trichiasis 3) dry eye 4) symblepharon |
|
what is a symblepharon?
|
adhesions b/w the conj of the lids and the globe
(forms after trauma, burns, infxins, etc) |