Axis

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Related to visual axis: fovea, pupillary axis

Axis

In Cartesian charting, a line that bisects a chart. The x-axis cuts a chart horizontally, while the y-axis cuts it vertically.
References in periodicals archive ?
The lesions are generally asymptomatic, but may cause irritation or decrease in vision if involving the visual axis.
In later stages, the superficial opacities become translucent and flattened like breadcrumbs, and coalesce, causing a reduction in vision as the visual axis is affected.
The pocket then seals itself, holding the lens in place in the center of the visual axis.
The generally mild symptoms that result tend to worsen over time, at least through middle-age, but they may improve in later years as more marked vitreous liquefaction allows floaters to sediment within the eye, and thus move away from the visual axis.

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