Squint

Question 1

Define squint

Answer 1

Strabismus

Misalignment of the visual axes/eyes

Question 2

Aetiologies of squint

Answer 2

Usually idiopathic in healthy children

Hydrocephalus

Cerebral palsy

SOLs e.g. retinoblastoma

Trauma

Question 3

Clinical features of squint

Answer 3

Obvious misalignment

Double vision

Question 4

Pathophysiology of concomitant squint

Answer 4

Common

Due to imbalance in extraocular muscles

Convergent is more common than divergent

Question 5

Pathophysiology of paralytic squint

Answer 5

Rare

Due to paralysis of extraocular muscles

Question 6

Types of squint

Answer 6

Concomitant

Paralytic

Question 7

Investigations for squint

Answer 7

Corneal light reflection test (Hirschberg’s)

Cover test to identify nature of squint

Question 8

Management of squint

Answer 8

Refer to secondary care

Eye patches may help prevent amblyopia

Question 9

Complications of squint

Answer 9

Uncorrected may lead to ambylopia (brain fails to fully process inputs from one eye and over time favours the other eye)

Delayed treatment increases risk of squint becoming permanent