Amblyopia (Lazy Eye) Early Detection Matters

What Is Amblyopia?

Amblyopia, commonly called lazy eye, happens when one eye doesn’t develop normal vision. The brain starts to rely on the stronger eye, while the weaker one is suppressed. If untreated, this can lead to permanent vision loss.

• 2–3 in every 100 children are affected by amblyopia
• Often invisible to parents without a professional eye test
• Can become permanent if untreated past early childhood

Why Early Detection Is Essential

The visual system develops rapidly in the first years of life. By around age 7, the brain’s flexibility drops sharply, making treatment far less effective.

• First eye test should be at age 5, before starting school
• If signs appear (squinting, rubbing, one eye turning), test at any age
• Treatment success is highest before age 7

Signs Parents Should Watch For

Amblyopia isn’t always obvious. Some children adapt so well that parents don’t notice until much later. Keep an eye out for:

• Squinting or covering one eye when reading or watching
• Frequent eye rubbing or blinking
• Eyes that appear to wander inwards or outwards
• Trouble with depth perception (clumsiness, poor ball skills)

How Is Amblyopia Treated?

The goal is to strengthen the weaker eye so both eyes can work together. Common treatments include:

• Glasses – Correct underlying vision problems
• Patching – Covering the stronger eye so the weaker one is used
• Atropine drops – Blurring the stronger eye instead of patching
• Vision therapy – Exercises that train eye coordination

If your child needs a patch, Eyehouse stocks comfortable, child-friendly patches to make the process easier. View patches here.

The Risks of Waiting

Some parents hope children will grow out of a lazy eye. Unfortunately, amblyopia doesn’t resolve without treatment. Waiting too long can result in:

• Permanent reduced vision in the weaker eye
• Difficulty judging distances
• Increased risk if the stronger eye is ever injured

What Parents Can Do