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Board study > Ocular disease Conjunctiva > Flashcards

Ocular disease Conjunctiva Flashcards

1
Q

what is the difference between papillae VS Follicle ?

A

Papillae : in bacteria and allergy , vascular core
Follicales –> white , Lymphocytis
Virus

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2
Q

what viruses are associated with follicle ?

A 
CHAT "
C--> chlamydia 
H-->Herpes 
A-->A adreno virus 
T-->toxic
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3
Q

what is the differences between Conj nevus VS Primary aquired melanosis (PAM) Vs Melanomas

A

Nevus–>unilateral , flat , benign proliferation of melanocystes around Puberty
PAM –> uni, aquired pigmenation in elderly , Indistinct margins Premelgnant —> can lead to Melanoma
Melanoma –>uncontrolled proliferation of melanocystes

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4
Q

CONJ intraepithelial neoplasis ? =CIN

A

unilateral , premalignant ,

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5
Q

what is the most conj malignancy ?

A

CIN =CONJ intraepithelial neoplasis

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6
Q

what is CIN can become ?

What PAM can become ?

A

CIN CONJ intraepithelial neoplasis –>squamous cell carcenoma
PAM–> conj melanoma

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7
Q

what is the different between bacteria and viral conj?

A

Bacteria : either simple ( +) or gonococcal (-)

1- Acute onset redness , variable discharge( serous , mucopurulent

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8
Q

what is the most common cause of bacterial conju. in childer and in adult ?

A

H influenzae in children

S aureus, S epidermis in adult

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9
Q

what is the most common cause of blepharitis ?

A

Staph. aureus,

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10
Q

what is GOnococcal conju?

A

1- gram (-) bacteria infection thro. sexual transmitted , can pass thro vaginal birth canal to infant
2- sever purulent discharge
3- Preauricular lymph.pathy As in virus conju

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11
Q

which conj. infection can transmit to infant ?

A

GOnococcal conju

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12
Q

what most co infection with GOnococcal conju?

A

Chlamydial systemic infection

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13
Q

what viruses are associated with follicle ?

A 
CHAT "
C--> chlamydia 
H-->Herpes 
A-->Adenoviral conj 
T-->toxic -->allergic conj that is follicular reaction
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14
Q

Adenoviral conj?

A

1- many types but most one is upper respiratory tract infection , follicle , non specific
2- types PCF = pharyngoconjunctival fever ,
EKC =epidemic keratoconjunctivitis

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15
Q

what is pharyngoconjunctival fever ? =PCF

A

a type of Adenoviral conj( viral) swiming pool conj

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16
Q

what is the triad of PCF ?

A

1- acute follocular conj occasionally hemes
2- mild low fever
3- Phryngitis
NO CORNEA INVOLVED

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17
Q

what is the most serious type of Adenoviral conj?

A 
EKC =epidemic keratoconjunctivitis 
Pain corneal involved 
SEI ( subepith infeltrates )
Preauricular lymph.pathy 
Psudomembrane formation 
Diffuse Keratitis ( mohem )
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18
Q

what is the hallmark of EKC?

A

Palpable node ( Preauricular lymph.pathy ) + suspected adenoviral infection = EKC

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19
Q

WHat is Molluscum contagiosum ?

A

(Dome shape umbilicated , waxy nodules , on the lid , viral conj. , Poor hygiene , DNA PoX virus

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20
Q

what to worry about if see multiple Molluscum contagiosum?

A

HIV

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21
Q

what test u do for HIV?

A

Elissa , Western blot

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22
Q

Chlamydial D-K ?

A

Follicular , sexually active , Inferior Palpebral conj and fornics

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23
Q

what is the most common sexualy transmitted disease viral ?

A

Chlamydia

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24
Q

what is the most common cause of preventable blindness in world ?

A

Trachoma = Chlamydia A-C

1- follicules , Arlt line , Herbert;s pits

25
Q

SLK superior limbic keratoconjunctivitis ( part of allergic ) associate with ?

A

1- Thyroid, 2- K sicca, 3- CL wear ,

superior bulbar conj ( hero condition)

26
Q

Phylyctenular keratoconjunctivitis ?

A

1- Type 4 Hypersenstivity to staphylococcus
2- can be in cornea or conj
3- most common in teenager , history of TB

27
Q

what is the name of TB test?

A

PPD in 48-72 h

28
Q

what is the difference between Conj Phlyctenules Vs Corneal Phlyctenules

A

Conj Phlyctenules : at the limbus as pink fresh nodule , with conj injection
corneal Phlyctenules: at limbus small white , nodule , with conj injection
Pinguescula : yellow white raised , at limbus ( NOT IN CORNEA )
Pterygium : triangle fibvascular growth in bulbar conj and extend to cornea ( IN BOEMAN Membrane ) WTR ASTIGMATISM , Stocker’s line –> iron deposite

29
Q

phthiriasis paplpebraum ?

A

infection of lashes , lid , found in hair follicles of gential region , follicles, preauricular lymphadenopathy

30
Q

Subconj heme?

A

1- caused from cough , staining , medication as aspirin, coumadin, sickle cell , HTN ,

31
Q

what tests for subconj ?

A

CBC , PT/PTT, sickledex ,

32
Q

Pterygium/Pingueculum

A

UV exposure ,

33
Q

what is the leading cause degenration of collegen fibrils with in conj stroma ?

A

UV exposure –> dry eye

34
Q

Episcleral Vs scleritis ?

A

Episcleritis : sectoral injection , red, uni , mild pain common
Scleritis : diffuse , blue sclera, PAIN , rare, deep Bilateral
2.5% Phenylephrine –> blancing it is epi

35
Q

what is associated with scleritis ? what kinds ?

A

NON necrotizing 80%–> 60%diffuse or nodular

Necrotizing 15%–> with inflammation , and without inflammation

36
Q

what is associated with Necrotizing scleritis with inflammation Vs Non Inflammation ?

A

Necrotizing with inflammation –>worst , autoimmune problem , cause UVITIS , periphreral corneal melting , sclera thinning , cataract, glaucoma

Necrotizing with NO inflammation ->no pain , ( Scleromalacia perforans ( CHRONIC rheumatoid arthritis ) )

37
Q

what is Scleromalacia perforans ?

A

scleritis in rheumatoid arthritis

38
Q

Anterior Uvitis causes ?

A

frequently in young age

if occure > 70 yrs old it is because Herpes zoster

39
Q

associated with anterior Uvititsn Non granulomous ?

A 
CRAP 
C--> Crohn's disease
R--> Reactive arthritis 
A--> Ankylosing spondyl
P-->Psoriatic arthirists
40
Q

anterior Uvitis granulomus ?

A 
caused by 
Sarcoid, --> ACE increase 
TB ,--> + PPD 
 Syphilis 
Herpes
41
Q

what test to do for anterior Uveitis ?

A

HLA-B27

42
Q

What symptoms of anterior Uveitis ?

A

pain, red, photophopia , CME , decrease VA ,

FLares WBC in anterior chamber

43
Q

what you worry about in Anterior Uveitis ?

A

1- Posterior synechaie , peripheral anterior synechiae , CME , cataract
2- Decreases IOP
3- KP keratic percipitates in endothe.

44
Q

where you find KP Keratic percipitats ?

A

1- Anterior Uveitis grano–> sarcoid , TB , Syphilis
2- Anterior Uveitis non granul–> CRAP
3- Stellate ( star shape ) –> in heterochromatic iritis , and herptic Uveitis
C–> Crohn’s disease
R–> Reactive arthritis
A–> Ankylosing spondyl
P–>Psoriatic arthirists

45
Q

what is the enzyme level increase in sacoid and what it is associate with ?

A

ACE level increase , Anterior granul Uveitis and most time Posterior Uveitis
more common in females ,

46
Q

what is the difference between congenital syphilis Vs aquired ?

A

Aquired rarly has Interstitial keratitis, unilateral , less severe

47
Q

what hall mark of syphilis ?what tests for syphilis ?

A

Interstitial keratitis ,
maculopapular rash , + VDRL , + RPR, + FTA- ABS,
+ MHA-TP

48
Q

what is Interstitial keratitis?

A

associate with syphilis granulomous Uveitis , it is an inflammation of stroma without primary involvment of epi and endo

49
Q

what is the most common cause of Interstitial keratitis?

A

congenital syphilis

50
Q

WHAT is the congenital Syphilis Triad? IMPRTANT !

A

1- Hutchinson’s teeth ( small widely spaced teeth)
2- Deafness
3- Interstitial keratitis
Also –> saddle nose , frontal bossing

51
Q

what causes posterior Uveitis ?

A

breakdown in blood aqeous barrier , that result in WBC flares in vitreous

52
Q

what is associated with posterior Uveitis?

A

1- toxoplasmosis

3- sarcoid

53
Q

what is the most common cause of posterior uveitis ?

A

toxoplasmosis

54
Q

what is toxoplasmosis ?

A

Parasitic infection
two types :
congenital –> most common transfer from mother
aquired–> result from inhalation of parasite ( cat feces or undercook meat

55
Q

what is the most common cause of infectious retinitis ?

A

congenital ocular toxoplasmosis

56
Q

signs and symp of toxoplasmosis ?

A

vitritis , unilateral redness , age 25 , headlights in the fog

57
Q

Histoplasmosis can lead to posterior uveitis ?

A

NO , it causes choroiditis ( punched out yellow white lesion in peripheral and CNVM only in ohio

58
Q

Sarcoid traid? and can lead to anterior and posterior Uveitis

A

cotton ball opacitis ( retinal vitritis )
candle wax droping ( retinal vasculitis ) excudates
optic nerve papiledema
associate with Bell’s palsy , lacrimal gland dacroadyntits

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