What is a Ptosis?

  • Ptosis refers to a drooping upper eyelid.
  • The lid may droop only slightly or it may droop enough to partially or completely cover the eye, restricting or obscuring vision.
  • Ptosis may be inherited. It can affect one or both eyelids. If a ptosis is present at birth it is referred to as a congenital ptosis.
  • A severe or moderate congenital ptosis may hinder normal visual development, causing amblyopia (or a lazy eye).
  • If untreated amblyopia may lead to permentant reduction of vision in one eye.
  • If the ptosis is mild, treatment may only be desired for comestic reasons.
  • If the ptosis is severe enough to obstruct vision, treament is usually necessary and beneficial.

What Causes Congenital Ptosis?

  • Ptosis present at birth is often caused by the poor development of the eyelid lifting muscle.
  • Muscular diseases, lid tumours or neurological disorders may cause a ptosis.
  • Congenital ptosis usually does not improve with time.

What are the Signs and Symptoms?

  • A drooping upper eyelid.
  • Children with ptosis will tip their heads back in an attempt to see underneath their eyelids.
  • The child may raise their eyebrows in an attempt to raise the lid.