Convergence Insufficiency

Convergence Insufficiency

It is defined as the defect in coordination between two eyes while looking at near object. When eyes look at nearby object both eyes move inward to make the convergence to clear the image but in convergence insufficiency one eye more outward instead of inward which image blurred.


Signs and symptoms include:amblyopia

  • Doubling of image (diplopia)
  • Squinting
  • Tired
  • Headaches
  • Difficulty in concentrating

The exact cause of this defect is not known yet but it may be assumed that there is a weakness in an extraocular muscle which control the eye movement. There are 6 extraocular muscles which the eye ball in different directions.


It causes eyestrain which make difficult to concentration due to which child’s learning abilities disturb.


After taking history your doctor might recommend a following tests:

  • Perform an eye test to see any vision problem
  • Take a medical history
  • Measure the point of convergence
  • Assess positive fusional vergence

The aim of treatment is to reduce the sign and symptoms, treatment options include:

  • Computer vision therapy to improve the convergence
  • Reading glasses
  • Pencil pushups exercise to improve the focus of eyes
  • Surgery to ressect the weak muscle
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