Variable Depth of Field

Constant laptop-distance viewing is said to narrow the functional range of the eyes. Modern work environments are described as constraining vision to a narrow distance range. The proposed correction is to vary focus among near, medium, and…

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Constant laptop-distance viewing is said to narrow the functional range of the eyes. Modern work environments are described as constraining vision to a narrow distance range. The proposed correction is to vary focus among near, medium, and far targets throughout the day.