Eyes

Question 1

A 9-month-old infant is brought to see you as his mother feels that his right eye tends to turn in, since about 4 months of age. This has apparently been noted for the past 3 months but may have been present from birth. On examination the right eye is intermittently convergent and there are no epicanthic folds of note. The right eye tends to swing back to the midline position on covering the left eye. The eye movements are full and the infant fixes and follows normally.

What is the most likely cause of the squint?

Question 1Select one:

a.
Sixth nerve paralysis

b.
Pseudostrabismus

c.
Congenital blindness

d.
Concomitant squint

Answer 1

Concomitant squint

angle constant regardless of direction of gaze, may fix when cover eye

Question 2

A 12-month-old girl has a convergent squint of the left eye that the parents have noticed for 3 months. On examination she is found to have normal vision in the right eye but some decreased visual acuity and long-sightedness (hypermetropia) in the left eye.

Which treatment would be most appropriate in the first instance?

Question 2Select one:

a.
Corrective surgery

b.
Alternating eye patches

c.
Observation only

d.
Corrective glasses

Answer 2

Corrective glasses

Eye patches first line <6 months

Question 3

The parents of a 2-year-old girl come to you with a recent family photograph taken at night, in which the girl appears to have one red and one white eye. The girl is entirely well. This is a characteristic presentation of one of the following conditions. WHICH ONE?

Question 3Select one:

a.
Retinoblastoma

b.
Keratitis alba

c.
Vitreous degeneration

d.
Congenital cataract

Answer 3

Retinoblastoma

Question 4

WHICH ONE of the following is NOT associated with an increased risk of dental caries?

Question 4Select one:

a.
Congenital deficiency of enamel

b.
Frequent use of antibiotic capsules

c.
Gastro-oesophageal reflux disease

d.
Fruit juice via bottle at bedtime

Answer 4

Frequent use of antibiotic capsules