28/2 Flashcards
Stye vs chalazion
Stye - staph infection of the lash follicle - PAINFUL
Chalazion - blockage of oil gland on eyelid - PAINLESS
What is blepharitis?
How does it present?
Lid margin inflammation
Bilateral grittiness - worse in mornings
Eyelid hygiene - warm compresses, cotton wool/buds to clean
How can you identify the difference between orbital and pre-septal?
Signs of optic neuritis
- decrease in visual acuity
- decrease in colour vision
- pain on ocular movement
- RAPD
How can you tell the difference between bacterial, viral and allergic conjunctivitis?
If bacterial suspected how is it managed?
How is all managed?
Bacterial - purulent discharge
Viral - watery
Allergic - watery and itchy and seasonal
HAND HYIENE is so important to prevent spread to others esp. with viral and WARM compresses
Topical chloramphenicol eye drops
Pre-auriciular lymphadenopathy is present in what kind of conjunctivitis?
Viral
What are the causes of sudden visual loss?
ABCD
AMRD
Blocked blood vessel/bleed
Closed angle glaucoma
Detachment of retina
What are the fundoscopy differences and clinical differences between central retinal artery and vein occlusion?
CRAO - pale fundoscopy
- carotid bruit (CRAO is a type of stroke and carotid artery disease is likely to cause
CRVO - retinal haemorrhage and “stormy-sunset” appearance
What level of carotid artery occlusion does there have to be to indicate carotidectomy?
70%
What must be assessed on fundoscopy?
3C’s
- cup
- colour
- contour (line of the disc)
Peripheral retina (vessels around, any signs of dot blots, cotton wool spots - signs of DM/HTN retinopathy)
Macula
What do each of the following signs on fundoscopy indicate:
- increased Cup to disc ratio (CDR)
- very bright/pale colour
- blurred contour
Increased CDR - gluacoma in particular COAG
Very bright/pale colour - optic atrophy
VERY IMPORTANT
Blurred contour - papilloedema/papillitis (Optic nerve head inflammation)/CRVO/malignant HTN
How can you tell if you are looking at the right or left eye on fundoscopy?
disc on r = r eye
What joints are affected in the hand are affected by RA?
RA occurs more proximally in life -» affects the PROXIMAL (PIP) and MCP
OA affects DIP
What is the first line treatment in sebahhoric dermatitis?
Ketoconazole
What med is used to manage idiopathic intracranial HTN?
Acetazolamide (carbonic anhydrase inhibitor)
What is the management of C.diff?
Vancomycin