Ophthal Flashcards
Retinal features in central retinal vein occulsion
Painless loss of vision
‘Stormy sunset’ - flame heamorrhages
Retinal features of central retinal artery occlusion
Ceherry red macula on ale retina
Trachoma
Leading cause of blindness in developing world
Chronic congunctivitis and inwadly turned eyelids
Caused by chlamydia
What would you expect to see in the pupil of a CN III palsy
mydriatic - dialated
posterior synechiae
iris sticks to lens in inflammation (such as anteiror uveitis)
Treatment with dialating drops
Pterygum
benign fibrovasular thickening of conjuctiva and affects cornea
pinguecula
yellow thickening of conjunctiva and does not affect cornea
rred flag for lumps on eyelid
eyelash loss/ulceration - could be cancerr
difference between Chalazia and hordeola
A chalazion is caused by noninfectious meibomian gland occlusion (usually further up on eyelid) , whereas a hordeolum usually is caused by infection.
holmes adie pupil
Holmes-Adie syndrome involves a pupil in one eye that is larger than the other and constricts slowly in bright light as well as the absence of deep tendon reflexes usually in the Achilles tendon
Argyll Robertson pupil
bilaterally small pupils that do not constrict when exposed to bright light but do constrict when focused on a nearby object. Argyll Robertson pupil is a highly specific sign of late-stage syphilis
“prostitute’s pupils” because of their association with syphilis and because, like a prostitute, they “accommodate but dont react”
Marcus Gunn pupil
Marcus Gunn pupil, also referred to as a relative afferent pupil defect (RAPD), is a rare condition in which an individual’s response to light is different than expected in only one eye. The presence of a Marcus Gunn pupil is indicative of a unilateral dysfunction in the optic nerve, which transmits information from the retina to the brain, or dysfunction of the retina, which is the light sensitive area at the back of the eye.
epiphora
having excess tears or watery eyes.
trichiasis
growing of eyelashes inwards
associated with entropion too
can be as a result of trachoma infection
Most common primary orbital maligenacy in childhood
rhabdomyosarcoma