Mydriasis is a condition in which the pupil diameter exceeds 5 mm.Typically associated with poor lighting, it can also be caused by drugs, drugs or large amounts of alcohol, from head trauma, with strong emotions, by asphyxiation, by stroke or brain hemorrhages or diseases such as glaucoma, botulism or paralysis of the optic nerve.

The mydriasis may be unilateral (if only affects one eye) or bilateral (as regards both pupils). In addition they are distinguished reagent mydriasis reagent (in which the pupil reacts if stimulated by light) and a fixed mydriasis (or "non-reactive" when it does not react to light stimuli). The latter form is often a sign of a irreversible problem.

 

What kind of diseases can be associated with mydriasis?

Diseases that may be associated with chills mydriasis are the following:

  • Botulism
  • Glaucoma
  • Stroke
  • Iridoplegia
  • Tonic pupil syndrome (or Adie)

Remember that this is not an exhaustive list and it is highly recommended to consult your doctor, in case of symptom’s persistence.

What is the therapy for mydriasis?

The best remedy depends on the underlying cause of mydriasis. Often treatment involves taking medication.

 

When is most likely to contact your doctor in case of mydriasis?

Typically mydriasis it is associated glare and blurred vision. In the presence of these symptoms you should consult with your doctor.

If mydriasis is associated with a head injury it is best to turn to the emergency room. In the event of a suspected stroke it is critical to call an ambulance.