Vision los Flashcards
Causes of sudden vision loss
Painful: Acute glaucoma Optic neuritis GCA Anterior uveitis
painless and come and go:
Amaurosis fugax (lack of blood supply to eye)
Migraine
Raised ICP
Painless and constant:
Retinal detachment
Vitreous haemorrhage
Retinal vessel occlusion
Gradual
Cataracts
Refractive errors
Veil over eyes
Amaurosis fugax
red painful eye with hazy sudden loss of vision with mild dilation
Acute glaucoma
Other symptoms/signs in acute glaucoma
Cupped optic disc
Halo seen around lights
Criteria for MS
Two or more CNS lesions with corresponding symptoms separated in time and space (lasts for longer than 24h and at least one month apart)
e.g. tingling and optic neuritis
Symptoms of MS
Reduced visual acuity Double vision Nystagmus Burning sensation in eye Tremors Weakness Autonomic dysfunction (e.g. bladder or bowel problems)
What is Temporal arteritis?
Inflammation of temporal arteries, formation of granulomas causing ischemia
Symptoms + associated symptoms/distribution of pain in GCA
Unilateral headache in the distribution of the temporal artery
Pain upon eating (jaw claudication)
Pain when brushing hair
Double vision
Blurred vision
Vision Loss
Which condition is GCA associated with?
Associated with polymyagia rheumatica
Main cause of anterior uveitits
Autoimmune conditions
Symptoms and signs of anterior uveitis
Painful and increased lacrimation and photophobia
Blurring
Red watery eyes
Main cause of posterior uveitits
Infective
Symptoms of posterior uveitis
Painless
Floaters
Scotomata (vision changes e.g. in auras)
What is a migraine aura?
Speech disturbances, blurry vision