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Foveal Acuity

Foveal Acuity. Zach, annalise , Agria , Michelle, Kate, Josh. Fovea. Acuity – the smallest spatial detail that can be resolved Located in the center of the retina 1 degree angle Only made of cones Daylight vision, fine visual acuity, and color No rods present Star gazing – night vision.

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Foveal Acuity

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  1. Foveal Acuity Zach, annalise, Agria, Michelle, Kate, Josh

  2. Fovea • Acuity – the smallest spatial detail that can be resolved • Located in the center of the retina • 1 degree angle • Only made of cones • Daylight vision, fine visual acuity, and color • No rods present • Star gazing – night vision

  3. Advantages and Disadvantages • High resolution in the center • Low resolution in the periphery • Why? • High resolution requires so many resources • We personally don’t have enough photoreceptors to see everything in high resolution • You change your focal point to see in high resolution

  4. Peripheral Vision • Does not use the fovea • We can’t focus on anything using our peripherals • Visual crowding • Objects in our peripheral vision seem cluttered and hard to identify

  5. Results As the object (letters) moves away from your focal point, it gets more difficult to see with clarity

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