The blind eye workshop Flashcards
what does pigmentary keratitis indicate
chronic irritation of the eye
How do you differentiate nuclear sclerosis from cataracts?
Distant direct ophthalmology
when you look with distant direct you can see the tapetum if nuclear sclerosis is present, you can’t see the tapetum if cataracts is present
List 6 clinical signs of acute glaucoma
pain
red eye
corneal oedema
fixed dilated pupil
vision loss
Raised IOP (often >40mmHg)
List 4 things that chronic glaucoma can lead to
Globe enlargement (buphthalmia)
Corneal changes
Lens luxation
Cataracts
List 6 clinical signs of uveitis
pain
red eye
miosis
inflammation
corneal oedema
low intraocular pressure
What is hypopyon
pus in the anterior chamber of the eye
List 3 secondary changes of uveitis
- Synechiae, secondary glaucoma
- Cataract, lens luxation
- Retinal changes
Can lead to vision loss
what part of the eye does pigmentary keratitis affect
the cornea
what part of the eye does systemic hypertension affect
the aqueous and vitreous humour and the retina
what part of the eye does cataracts affect
the lens
what part of the eye does glaucoma affect
the whole eye- but the IOP puts pressure on the optic nerve
Decsribe immature cataracts
partial lens is affected
describe mature cataracts
whole lens is affected
describe hypermature cataracts
cataracts present for a long time and thickening
Describe how diabetic cataracts occurs
increased glucose overwhelms the hexokinase pathway and sorbital is produced, osmotic effect within the lens leads to water being absorbed, lens fibres swell and turn white - this is cataracts
