Systemic Disease & The Eye Flashcards
what condition can cause lid retraction, proptosis, lid lag and chemosis
thyroid eye disease
what conditions are associated with keratoconjunctivitis sicca
sjogren’s synd and rheumatoid arthritis
what is a management of thyroid eye disease
surgical decompression
what condition can cause superior lens dislocation ad myopia
marfan synd
what test to diagnose a space occupying lesion
MRI
what is the difference between a swollen disc and papilloedema
swollen disc: any cause
papilloedema: bilateral swollen disc due to increased ICP
what is hydrocephalus
increased CSF in subarachnoid space or ventricles
why does increased intracranial pressure affect the optic nerve
an increased in pressure in the subarachnoid space is transmitted along the optic nerve since it surrounds the optic nerve
why is increased ICP life threatening
brain can herniate through foramen magnum and compress brainstem which stops you breathing
what condition causes headache, bilateral disc swelling and decreased vision on movement
idiopathic intracranial hypertension
what is seen on fundoscopy in papilloedema
bilateral poorly defined cup and contour +- flame/splinter haemorrhages
what is cortical blindness
primary visual cortex problem
what condition causes cortex demyelination
MS
what is the commonest cause of optic neuritis
MS
what is the presentation of optic neuritis
progressive unilateral < vision, pain behind eye on movement, colour desaturation, central scotoma
