understand the function of the eye in focusing near and distant objects, and in responding to changes in light intensity
bending the light rays is done by the curved cornea and lens
cilary muscles control the shape of the lens
focusing on close objects
contraction of cilary muscles, which slackens the suspensory ligament and the lens becomes rounder. this image is then focused on the retina
focusing on distant objects
cilary muscles relax, which tightens the suspensory ligament and the lens becomes flatter. this image is then focused on the retina
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