| CPC G02B 27/0172 (2013.01) [G02B 3/14 (2013.01); G02B 27/0093 (2013.01); G02B 27/0179 (2013.01); G06F 3/013 (2013.01); G02B 2027/0187 (2013.01)] | 23 Claims |

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1. An electronic device, comprising:
a display that is configured to present a target that extends from a first side to a second opposing side, wherein the first side of the target is associated with a first optical power, the second side of the target is associated with a second optical power, and a region of the target between the first and second sides is associated with a continuous range of optical powers between the first and second optical powers;
a gaze detection sensor configured to determine a point of gaze; and
a tunable lens through which the display is viewable, wherein the tunable lens has an optical power that is set based on the point of gaze relative to the target.
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