Amblyopia treatment

What it is

Amblyopia, sometimes called lazy eye, is reduced vision in one eye because the brain favours the other eye during childhood development. It is not corrected by glasses alone if the brain has already learned to ignore the weaker eye. Treatment aims to make the brain pay attention to that eye again, usually by temporarily reducing vision in the stronger eye with a patch or drops while the weaker eye is encouraged to work.

Common approaches

Treatment is tailored to the cause, such as a squint or unequal focus between the eyes.

• Glasses to correct short-sightedness, long-sightedness, or astigmatism
• Patching the stronger eye for set hours each day
• Atropine drops in the stronger eye to blur near vision as an alternative to patching
• Treating a squint or cataract if these are contributing to amblyopia

Why timing matters

Vision develops most rapidly in early childhood, and amblyopia treatment is most effective before about seven to nine years of age, though improvement is still possible in older children. Regular eye checks in preschool years help catch amblyopia early, when the brain is most able to respond.

What families can expect

Patching or drops can be challenging for children and need encouragement and a consistent routine. Progress is checked at follow-up visits with vision tests and sometimes photos of the back of the eye. Most children improve with treatment, though some residual weakness may remain, especially if treatment starts late.