Cross-Eye, Lazy Eyes, and Convergency Insufficiency: Eye teaming problems and Vision Therapy
- needeyeexam
- Apr 28
- 1 min read
Updated: Jun 15

Sometimes, people confuse different eye teaming problems. Let's look at cross-eye, lazy eye, and convergence insufficiency.
Cross-Eye (Strabismus)
Cross-eye, or strabismus, is when your eyes don't line up correctly. One eye might turn inward, outward, upward, or downward while the other looks straight ahead. This can happen all the time or sometimes.
Lazy Eye (Amblyopia)
Lazy eye, or amblyopia, happens when one eye doesn't develop strong vision during childhood. The brain starts to favor the stronger eye, and the vision in the weaker eye doesn't get better over time. Sometimes, a cross-eye can lead to a lazy eye.
Convergence Insufficiency (CI)
Convergence insufficiency (CI) is when your eyes have trouble working together to focus on things up close, like when you're reading. Your eyes might drift outward instead of turning inward together.
Symptoms of Convergence Insufficiency (CI):
You might notice:
Tired eyes when reading.
Headaches.
Blurry vision up close.
Seeing double.
Trouble focusing.
Closing one eye to see clearly.
Words that seem to move on the page.
How Vision Therapy Can Help CI
Vision therapy uses exercises to help your eyes work together better for close-up tasks. It can make the eye muscles stronger and improve focus.
Vision Looky Optical Help with eye teaming problems
An eye doctor can tell the difference between cross-eye, lazy eye, and convergence insufficiency with a full eye exam. At Vision Looky Optical in Carrollton, Texas, our eye doctors can diagnose convergence insufficiency and create a special vision therapy plan for you. If you're having trouble focusing up close or have any of the CI symptoms, schedule an eye exam at www.NeedEyeExam.com to see if vision therapy can help.
