Ophthalmology Flashcards
Breslow thickness for T1 staging?
Less than 1mm
Optic neuritis findings in fundoscopy?
Mostly normal
Sometimes mild inflammation of disk
Treatment for allergic conjunctivitis?
Azelastine eye drops 1 drop both eyes 2-4 x daily
Lower eyelid lesion non healing?
BCC until proven otherwise
Yellow deposit on sclera?
Pingueculum or pterygium (only on medial side)
Treatment for episcleritis?
Oral NSAIDs
Difference between episcleritis and scleritis?
Scleritis is painful (significantly) needs urgent assessment
Treatment for HSV keratitis?
Referral to urgent opthal
Aciclovir eye ointment - 5x per day for 2 weeks
Oral valaciclovir if immunocompromised 500mg BD 7-10 days
Another name for flash burn?
Treatment?
Photokeratitis
Supportive - chloride ointment
Name for blood pooling in anterior chamber of eye?
Risk of secondary complication?
Hyphema
- glaucoma. Bed rest advised + eye shield
Normal optic cup to disk ratio?
< 50%
Enlarged optic cup on fundoscopy?
Glaucoma
“Sunset storm” on fundoscopy?
Retinal branch vein occlusion
Pale retina and cherry red spot on fundoscopy?
Central retinal artery occlusion
Protrusion of eyeball?
Proptosis
Signs of 3rd nerve palsy?
- Ptosis
- Dilated pupil (midriasis)
- Down and out gaze
Most common cause of central vision loss?
Macular degeneration
Risk factors for cataracts?
Age Smoking Etoh Sunlight exposure Diabetes Poor lifestyle habits
Brown ring around limbus of eye?
Kayser-fleischer ring
- Wilson’s disease
Poorly differentiated optic disc on fundoscopy?
Papillodema
Accumulation of ours in anterior chamber?
Hypopyon
Inflammatory eye disease associated with rosacea?
Marginal keratitis
Management of blepharitis?
Eyelid hygiene with warm compress
Eyelid form massage
Scrubbing inside edge of eyelid
Chlorsig eye ointment - bd for 1-2 weeks (anterior)
Doxycycline 100mg daily 2-4 weeks (posterior, esp if rosacea present)
Treatment for herpes zoster opthalmicus?
Urgent opthal
Oral valaciclovir 1g Q8H 7 days
Name for blocked / infected tear duct?
Dacrocystitis
Antibiotic choice for acute dacrocystitis?
Keflex 500mg QID
Blue discoloured lump over tear duct of newborn?
Dacrocystocele
- urgent referral to opthal
When to consider opthal referral for newborn masolacrimal duct obstruction?
If persisting beyond 6 months
Pathogen responsible for trachoma?
chlamydia trachomatis
Preseptal cellulitis treatment?
Fluclox 500mg QID
Name for cholesterol deposits it’s around eyes?
Xanthelasma