The child with a neck swelling

Inspect the eyes from above forehead (for exopthalmos)

Check for any lid retraction or lid lag on downward gaze - if so, say you want to check for corneal ulcers

PEARL (can get Horner's syndrome from thyroid enlargment)

External opthalmoplegia (inferior oblique is the first affected)

Conjunctival injection and oedema - chemosis (“gelatinous in appearance”)

Check visual fields (pituitary tumour can cause hypothyroidism)