Red eye DD

Question 1

Unaffected vision
No pain
No discharge

Answer 1

ectropion (routine)
entropian (routine)
blepharitis (routine)
sub-conjunctival haemorrhage (routine)

Episcleiritis ( Urgent)

Question 2

Unaffected vision
No pain
Mucopurulent dischage

Answer 2

bacterial conjunctivitis (routine)

Question 3

Unaffected vision
No pain
Watery dischage

Answer 3

no/ mild itching - viral conjunctivitis (

moderate / severe itching - GPC, Allergic conjunctivitis

Question 4

Moderate sever pain
Affected vision
Watery dischage
Linear NFL pattern

Answer 4

corneal abrasion ( urgent) 
corneal foreign body ( EMERGENCY)

Question 5

Moderate sever pain
Affected vision
Watery dischage
Circular NFL pattern

Answer 5

MK / corneal ulcer ( EMERGENCY)

Question 6

Moderate sever pain 
Affected vision 
No discharge 
Hazy cornea 
no pupils involved

Answer 6

Keratitis ( EMERGENCY)

Question 7

Moderate sever pain 
Affected vision 
No discharge 
Hazy cornea 
Pupil- irregular shape / sluggish response to light

Answer 7

Iritis (EMERGENCY)

Question 8

Moderate sever pain 
Affected vision 
No discharge 
Hazy cornea 
Mid dilated pupil/ no response to light

Answer 8

Acute Angle closure Glaucoma ( EMERGENCY)

Question 9

Moderate sever pain 
Affected vision 
No discharge 
Hazy cornea 
Constricted pupils

Answer 9

Uveitis (Emergency)

Question 10

Moderate sever pain
Unaffected vision
No discharge

Answer 10

Scleritis (Emergency)