Conjunctival, episcleral and scleral abnormalities Flashcards

1
Q

conjuctival changes

A
inflammatory- hyperamia, odeama, folicles, paipllae
haemmohrages
degenerative
pigmentation
lids and bumps
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2
Q

Conjunctival hyperaemia- ALL OVER REDNESS

A

occurs in all types of conjuctivtis

DD it from perilimabl injection which would just e on one side

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3
Q

Conjuctival Odeama- chemosis-

A

swelling of conjunctivitis

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4
Q

COnjuctival follicles

A

minute lymph follicles with vasculirisation
mostly in inferior fonix
could be viral, chlamydial or even toxic

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5
Q

conuctival papillae

A

vacular structures
in upper fornix
less specific than follicles

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6
Q

membranes -2 types

A

true membranes- when microorganisms excrete firinous or inflammatory exudate-
adhere really strong so u can get bleeding when removed

pseudomembranes- coagulated- so no bleeding as not adherent - peel these- appear in adnoviral, vernal and gonoccal conjunctivitis

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7
Q

subconjuctival heommahrage

A
trauam, 
haemorrhagic conjuctivitis, 
blood disorder, 
increased venous pressure by coughing, sneezing or straying
hypertension
or could even be idiopathic
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8
Q

how do u manage a subconjuctival heommahrage

A

careful examination
reassure px- should go in a week/two
cold compress
referral if needed

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9
Q

Pinguecela- benign- yellow white- grows slowly

A

conjuctival callouses that grow adjacent to cornea at 3/9 o’clock

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10
Q

Pterygium- wedge shaped0 extends and covers cornea- benign

A

caused by uv exposure
adheres to underlying structures
no sx- but eye may feel irritated
TRETAMENT- lubricant, sunglassss, steroids, refer for surgery when big

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11
Q

conjunctivitis types

A

viral
bacterial
chlamydial
allergic

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12
Q

ACUTE bacterial conjunctivitis-

A

mucopurulent discharge
lids stick together in the am
cornela changes include ulcers and infiltrates- if ulcer- refer-
treatment with anti biotics

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13
Q

CHRONIC bacterial conjunctivitis

A

intesne sx
ffew signs
management- includes identify agent, antibiotics, clinical evaluation of lacrimal system

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14
Q

chlamydial conjuctvitis include;

A

Trachoma

Adult inclusions conjunctivitis

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15
Q

Trachoma- caused by chlamydia trachomosis

A

bilaterlal
keraoconjuctivitis
afrixa/middleeast/south asia
15%of world blindness
transmssion- fingers/towles/ mothers to child
poor hygiene
acute sx- tearing, photophobia, pain, swelling of eyelids
can cause compilations such as dry eyes, ulcers, scars, blindness

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16
Q

adult inclusion conjunctivitis

A

caused b chlamydial trachomotis
STI
first effects one eye- then both
sx- FB sensation, irritatuin, watering, mucopurulent discharge

17
Q

how do u manage adult inclusion conjunctivitis

A
detailed H+S
refer to ophthalmologist and gynecologist
conjuctival scraping
topical and sytemic antibiotics
sexual partner also needs this course
18
Q

viral conjuctivitis

A

HSV
Pharingoconjunctival fever (PCF)
Epidemic keratoconjunctivitis

19
Q

herpes simplex virus

A

acute/ recurrent follicular conjunctivitis
with/without involvement of other ocular structures
similar signs and sx as other conjunctivitis
WATERY DISCHARGE
FOLLICLES
u need to give anti-viral therapy and cold compress

20
Q

Pharingoconjunctival fever (PCF)

A

V INFECTIOUS- in children
Adenovirus
acute and highly infectious
acute follicular conjunctivitis pharyngitis + pre-auricular limphadenopathy- ENLARGED LYMPH NODES
no treatment specifically- u treat sx- treat fever, pain, inflammation with cold compresses
self limited

21
Q

epidemic keratoconjuctivties

A
No enlarged lymph nodes
no fever
serious
transmitted in hops by contaminated instruments
young adults mostly effected
no systemic sx
22
Q

allergic conjunctivitis

A

seasonal
vernal
atopic
giant papillary

23
Q

SEASONAL allergic conjuctiivtis

A

Sx- bilateral itching, burning, photophobia, pain, blurred vision, watery/mucous discharge, sneezing and nasal congestion
Signs- mild conjunctival injection, papillary hypertrophy of the tarsal conjunctiva, increased tear volume, normal lid margin
Treatment: reduce exposure, cool copresses, vasoconstrictors, antihistamines,
If quite serious then: topical steroids, mast-cell stabilizers, immunotherapy, refer if resistant

24
Q

VERNAL keratoconjunctivitis

A

Bilateral conjunctivitis associated with corneal changes
Males<-
Symptoms: intense ocular itching, tearing, mucus secretion, photophobia, pain
Signs: red eye, giant papillae bigger than seasonal
Treatment: refer. As for SAC. When cornea is involved, refer and monitor the anti-inflammatory therapy. Surgery for giant papillae

25
Q

Atopic keratoconjunctivitis

A
atopy
men
same sx as seasonal
but also have topic dermatitis
and could also cause punctual stenosis
papilae in inferior fornix

similar treatment to allergic conjuctivits

26
Q

Giant papillary conjunctivitis

A

usually in cl wearers
itching after removal of cl lens, mucoid discharge, pain
u see large apillae, mucus over the lens
rmove cl- change the lens- hygiene- no steroids

27
Q

Differential diagnosis of allergic conjunctivitis

A

Atopic blepharitis
Bacterial conjunctivitis Chlamydial conjunctivitis Corneal abrasions or ulceration Dry eye
Episcleritis
Marginal and punctate keratitis Tight lens syndrome
Viral infections