Skip to main content
Home » Myopia Management » Myopia and Binocular Vision Problems

Myopia and Binocular Vision Problems

Myopia in children is on the rise in Toronto and Markham. Many people know that spending time outdoors and less work at near would help reduce the chance of myopia or nearsightedness getting worse in children.

If your children has symptoms of:

  • Rubbing their eyes.
  • Squinting to see.
  • Using one eye to see, covering one eye.
  • Mixing b and p when reading.
  • Skipping lines.
  • Adding the wrong columns.
  • Avoids near work or computer work.
  • Write uphill or downhill on the paper.
  • Dry, watery or burning eyes.
  • Excessive blinking.
  • Covering one eye to read.
  • Blur at seeing the distance after working at near for a few hours.
  • Falling asleep when reading.
  • Words running into each other.
  • Head tilt when doing near work.
  • Skipping, adding and having errors when copying.
  • Poor at judging distance.
  • Ppoor at judging time and planning.
  • Car motion sickness.
  • Prefers to have others read to them then read on their own.
  • Poor understanding after reading.
  • Gets tired easily after some near work or desk work.
  • Delays homework.

It’s likely that they have a binocular vision problem aside from sight changes.

But do you know why?

With excess near work, the focusing muscles inside the eye that controls the pupil size is overworking to control the near focus. Like a simplified version of the eye, the camera, if it’s over-focusing at a specific distance for hours or days, the battery dries out. The same goes for the pupil muscles. Tired eyes would over-accommodate, or under-accommodate.

When it over-accommodates, it can lead to accommodative excess or spasm. Another term for it is pseduo-myopia.

When it under-accommodates, it can lead to accommodative insufficiency.

When either happens for a long time, it can lead to the eye team (eye convergence and eye divergence) system to break down too, causing convergence insufficiency or convergence excess.

It’s always better to address these problems earlier than later, as it may lead them having avoidance in learning and reading challenges.

When in doubt, book a developmental eye exam with a neuro-developmental Optometrist such as Dr. Liang.

Written by Yan Ling Liang

Markham Optometrist