Lagophthalmos describes difficulty in complete closure of the eyelid over the eyeball.

Causes of lagophthalmos include:

• exophthalmos
• an impairment of mechanical closure of the lids e.g. burns of the eyelids
• paralysis of orbicularis oculi
• leprosy

This condition may result in corneal ulceration and keratitis.

Treatment:

• lubrication of eyes
• temporary tarsorrhaphy may be required if corneal ulceration develops