Vision support
Prism lenses: help for double vision & eye alignment
If your child sees double or their eyes don’t quite line up, prism lenses may be part of the answer. Here’s what they are, when they’re prescribed, and how they help — in plain language.
The basics
What parents should know about prism
What prism lenses are
A prism is a wedge built into the lens that bends light before it reaches the eye. Instead of changing focus like a normal prescription, it shifts where the image lands so both eyes can work together.
Why they’re prescribed
Eye doctors add prism when the eyes don’t align — issues like strabismus or convergence problems — so the brain gets one clear, merged image instead of two competing ones.
How they help
By realigning the two images, prism reduces double vision, eye strain, and head-tilting, and supports healthy binocular vision as kids read, learn, and play.
Signs to watch for
Frequent double vision, covering or closing one eye, head-tilting, squinting, or tired eyes during reading are all worth an eye exam.
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