Ophthalmology Flashcards
What is the presentation of episcleritis?
Painless Red eye Tearing Normal visual acuity No discharge
What is scleritis?
Inflamm through entire thickness of sclera
What is seen on fundoscopy in papilloedema?
Venous engorgement: 1st time
Loss of venous pulsation
Blurring of optic disc margin
Loss of cup
What is the management of open angle glaucoma?
Latanoprost, laser therapy, trabeculectomy, artificial shunts
What causes an argyll-Robertson pupil?
DM, syphilis
What is the presentation of allergic conjunctivitis?
Bilateral
Itchiness
History of atopy
Seasonal
What are the features of proliferative diabetic retinopathy?
Neovascular changes, haemorrhages
What are the features of an argyll-Robertson pupil?
Accommodates but doesn’t react
What are the causes of papilloedema?
Space occupying lesion
Malignant hypertension
Hydrocephalus
Hypercapnia
What is the presentation of bacterial conjunctivitis?
Purulent discharge
Eyes stick together
What is episcleritis?
Inflamm of superficial, episcleral layer of the eye
How is acute angle closure glaucoma managed?
Reducing secretions: acetazolamide, pupillary constriction: topical pilocarpine
What is blepharitis?
Inflamm of eyelid margins
What is wet macular degeneration?
Choroidal neovascularisation –> leakage of serous fluid –> rapid loss of vision
What is the management of allergic conjunctivitis?
Antihistamines
Topical mast cell stabilisers
What conditions are associated with anterior uveitis?
Ank spond
Reactive arthritis
IBD
Behcets
What can posterior blepharitis be due to?
Seborrhoeic dermatitis
Staph infection
What is the management of nasolacrimal obstruction?
Lacrimal duct massage
What is the management of dacrocystitis?
Systemic abx
What is dacrocystitis?
Infection of the lacrimal sac
What are predisposing factors to acute angle closure glaucoma?
Hypermetropia, pupillary dilation, age
What is loss of vision due to in diabetic retinopathy?
Retinal detachment, retinal oedema, vitreous haemorrhage
What are features of posterior vitreous detachment?
Flashers and floaters prior to vision loss
What is the management of cataracts??
Lens replacement, phacoemulsification
What are the causes of optic neuritis?
MS, DM, syphilis
What is a side effect of latanoprost?
Brown pigmentation of iris
What do beta blockers do (eye wise)?
Reduce aqueous production
What are the RFs for open angle glaucoma?
Age, FH, black people, ocular hypertension, myopia, retinal disease
What are the RFs for cataracts?
Smoking, diabetes, FH, UV, hypertension, steroids
What is the presentation of open angle glaucoma?
Initial peripheral vision loss –> complete vision loss
What is the presentation of viral conjunctivitis?
Watery discharge
Recent URTI
Periauricular LN
What is a high IOP?
> 21mmHg
What is the management of keratitis?
Ofloxacin
Aciclovir
Oral/topical steroids
What is the management of optic neuritis?
High dose steroids
What are the features of optic neuritis?
Unilateral decrease in VA, red desaturation, pain worse on eye movement, RAPD, central scotoma
What are the investigations done in open angle glaucoma?
Fundoscopy, tonometry
What is the presentation of cataracts?
Spots in vision, haloes around bright lights, poor vision
What is the presentation of keratitis?
Red eye Pain Erythema Gritty Photophobia Hypopyon
What is the presentation of dacrocystitis?
Watering eye
Swelling and erythema at inner cants of eye
What is the presentation of anterior uveitis?
Pain Small pupil Blurred vision Red eyes Photophobia Hypopyon
What is keratitis?
Inflammation of the cornea
How does dry macular degeneration present?
usually incidental, difficulty reading that worsens. Straight lines appear wavy
What can anterior blepharitis be due to?
Meibomian gland dysfunction
What is dry macular degeneration?
Progressive atrophy of the retinal pigment epithelium, choriocapillaries and photoreceptors
What are the features of acute angle closure glaucoma?
Mid dilated pupil, pain, haloes around lights, hazy/dull cornea, systemic upset, decreased VA
What are causes of acute vision loss?
Open angle glaucoma, cataracts, dry macular degeneration, diabetic retinopathy
What is the management of blepharitis?
Hot compress
Mechanical removal of lid debris
Artificial tears
What is seen on fundoscopy in open angle glaucoma?
Pale disc, hazy contour of disc
What is keratitis associated with?
RA
Wegeners
Hypersensitivity
What are the features of retinal detachment?
Curtain coming down, straight lines appear curved
What is the management of episcleritis?
Self-resolving
What is the management of infective conjunctivitis?
Normally self limiting
Chloramphenicol
Fusidic acid in pregnant women
Don’t wear contact lenses
What is the presentation of scleritis?
Severe/constant eye pain Red eye Photophobia Normal VA Watering
What is the pathophysiology of non proliferative diabetic retinopathy?
Hypertglycaemia –> pericyte death –> thickening of retinal basement membrane –> increased vasc permeability –> retinal oedema –> hard exudates
What is acute angle closure glaucoma due to?
Impairment of aqueous outflow
What is the management of wet macular degeneration?
Photocoag, PDT, anti-VEGF
What are the features of non-proliferative diabetic retinopathy?
Micro-aneurysms, dot and blot haemorrhages, retinal oedema, hard exudates
What does latanoprost do?
increases uveoscleral outflow
What is the management of anterior uveitis?
Atropine, cyclopentolate
Steroid eye drops
Urgent referral
What is seen on fundoscopy in dry macular degeneration?
Drusen (yellow spots over macula), macular scar may develop
What is the management of scleritis?
PO NSAIDs
PO pred
What is the presentation of blepharitis?
Grittiness Sticky eyes Red eyelid margins May be styes/chalazion Secondary conjunctivitis