Optho

Question 1

Peripheral curtain over vision, spider webs, flashing lights

Answer 1

Retinal detachment

Question 2

Amaurosis fugax

Answer 2

Sudden loss of vision due to ischaemia, often due to thromboembolic disease.
<24 hours episode.

Question 3

Peripheral flashes, temporal floaters

Answer 3

Posterior vitreous detachment

Question 4

Severe pain, decreased acuity, red eye, semi-dilated non reacting pupil

Answer 4

Acute glaucoma

Question 5

Acute glaucoma management?

Answer 5

URGENT REFERRAL
Combination eyedrops (pilocarpine, timolol)
IV acetazolamoide

Definitive -> lazer peripheral irditomy

Question 6

Treatment for herpes simplex keratitis?

Answer 6

Topical aciclovir

Question 7

Cherry red spot

Answer 7

CRAO

Question 8

Amblyopia

Answer 8

Lazy eye

Question 9

Exotropia

Answer 9

Eye deviates outwards

Question 10

Esotropia

Answer 10

Eye deviates inwards

Question 11

Hypermetropia

Answer 11

Long sightedness

Question 12

Factors predisposing Acute Angle Closure Glaucoma?

Answer 12

Hypermetropia
Pupillary dilatation
Lens growth with age

Question 13

Aims of AACG treatment?

Answer 13

Increase outflow of aqueous humour, decrease aqueous humour production and secretions, increase uveosacral outflow.

Question 14

Pain out of proportion, contact lens, freshwater swim

Answer 14

Acanthamoebic keraititis

Question 15

Mode of action of dorzolamide?

Answer 15

Carbonic anhydrase inhibitor

Question 16

What is the pathophysiology of cotton wool spots?

Answer 16

Retinal infarction

Question 17

Pathophysiology of silver wiring?

Answer 17

Thickening of walls of retinal arterioles in hypertensive retinopathy