The ocular manifestations of thyroid eye disease can be divided into four clinical categories:

1. Eyelid disorders2. Eye surface disorders3. Ocular motility disorders4. Optic neuropathy

Retraction of upper and lower eyelids

Proptosis (protruding globe)

Widened palpebral fissure

Lagophthalmos

Lid lag on downward gaze

Corneal exposure , dry eye

Conjunctival injection and chemosis

Restricted ocular movements

Compressive optic neuropathy visual acuity , colour vision , + RAPD , visual field defects

No signs and symptoms Only signs Soft tissue involvement Proptosis Extraocular muscle involvement Corneal involvement Sight loss (optic nerve compression)