paralytic squint

Last reviewed 03/2023

The features of a paralytic squint include:

  • usually acquired
  • diplopia is present
  • diplopia is maximal when attempting to look in the direction requiring the action of the weak muscle
  • the image from the paralysed eye is always peripheral to the image from the normal eye
  • the angle between the longitudinal axies of the eyes varies during testing of eye movements

A paralytic squint is caused by damage to extraocular muscles or their innervation.