Opthalmology Flashcards
What are drusen a sign of?
Dry age related macular degeneration
What name is given to the area with the highest density of photoreceptors?
Fovea
What is the name of the surgery for cataracts?
Phacoemulsification
How does age-related macular degeneration px?
Central vision loss
Straight lines appear wavy
Poor night vision
How is wet age related macular degeneration treated?
Anti-VEGF injections
What Ix are useful in age related macular degeneration?
Amsler grid
Ocular coherence tomography (OCT)
Fluorescein angiography
Treatment options for diabetic retinopathy
Laser
Anti-VEGF injections
Intravitreal steroids
How does primary open angle glaucoma px?
Loss of peripheral vision
Ix for chronic glaucoma
Tonometry
Visual fields
What drugs are used for chronic glaucoma?
Prostaglandin analogues - latanoprost
Beta blockers - timolol
SE of latanoprost
Increased eyelash length
Causes of Horners syndrome
Stroke, MS
Pancoast tumour
Carotid artery dissection
Px of Horners
Ptosis
Meiosis
Anhydrosis
pseudoenopthalmus
What drugs can be used to dilate the pupils
Tropicamide
Cyclopentolate
Atropine
When are pupil dilating drugs CI
Head injury
Contact lenses in situ
Risk of closed angle glaucoma
4Cs of examining an optic disc
Colour
Contour
Cup
Circulation