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</html><description>fusion is the brain&#x2019;s ability to combine the two eyes&#x2019; images into one single visual percept. It is a core part of binocular vision, along with eye alignment and depth perception. In eye care, fusion is evaluated in exams for strabismus (eye misalignment), double vision, and eyestrain. It can also be supported through optical corrections, prisms, or structured visual training, depending on the case.</description></oembed>
