Ophthalmology Flashcards
Association with open angle glaucoma
Diabetes
Management of primary open angle glaucoma
B-blocker eye drops
Pus in the eye =
= hypopyon
Blood in the eye =
= hyphaema
Association of episcleritis
Contact lenses
Presentation of central retinal artery occlusion (3)
Painless loss of vision
Afferent pupil defect
Pale retina
Format for visual acuity
Distance from chart / smallest line of letters seen
e.g. 6/6 - normal vision, 6/60 - bad vision
Is the cornea usually vascular or avascular?
Usually avascular - can get growth of new vessels in hypoxia: bad as cannot see as well
Pupil sign in penetrating injury
Tear drop pupil - iris moves to try and plug the gap
High myopia is a risk factor for…
Retinal detachment
High metropia is a risk factor…
Acute angle closure glaucoma
Causes of gradual visual loss (4)
Cataract
ARMD
Chronic open angle glaucoma
Diabetic retinopathy
Surgical management of cataracts
Phaco-emulsification with intra-ocular lens implantation
Causes of sudden PAINLESS visual loss (6)
CRAO CRVO Amaurosis fugax Ischaemic optic neuropathy Retinal detachment Vitreous haemorrhage
Causes of sudden PAINFUL visual loss (3)
Acute angle closure glaucoma
Optic neuritis
GCA