Conjunctival, episcleral and scleral abnormalities Flashcards
conjuctival changes
inflammatory- hyperamia, odeama, folicles, paipllae haemmohrages degenerative pigmentation lids and bumps
Conjunctival hyperaemia- ALL OVER REDNESS
occurs in all types of conjuctivtis
DD it from perilimabl injection which would just e on one side
Conjuctival Odeama- chemosis-
swelling of conjunctivitis
COnjuctival follicles
minute lymph follicles with vasculirisation
mostly in inferior fonix
could be viral, chlamydial or even toxic
conuctival papillae
vacular structures
in upper fornix
less specific than follicles
membranes -2 types
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
subconjuctival heommahrage
trauam, haemorrhagic conjuctivitis, blood disorder, increased venous pressure by coughing, sneezing or straying hypertension or could even be idiopathic
how do u manage a subconjuctival heommahrage
careful examination
reassure px- should go in a week/two
cold compress
referral if needed
Pinguecela- benign- yellow white- grows slowly
conjuctival callouses that grow adjacent to cornea at 3/9 o’clock
Pterygium- wedge shaped0 extends and covers cornea- benign
caused by uv exposure
adheres to underlying structures
no sx- but eye may feel irritated
TRETAMENT- lubricant, sunglassss, steroids, refer for surgery when big
conjunctivitis types
viral
bacterial
chlamydial
allergic
ACUTE bacterial conjunctivitis-
mucopurulent discharge
lids stick together in the am
cornela changes include ulcers and infiltrates- if ulcer- refer-
treatment with anti biotics
CHRONIC bacterial conjunctivitis
intesne sx
ffew signs
management- includes identify agent, antibiotics, clinical evaluation of lacrimal system
chlamydial conjuctvitis include;
Trachoma
Adult inclusions conjunctivitis
Trachoma- caused by chlamydia trachomosis
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