1 / 9

VISION

VISION. How do you see ?. The brain reads images received by both eyes by blending them into one image . The brain uses this information to give you a sense of distance ( how close or far an object is ). How do you see ?.

genica
Download Presentation

VISION

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. VISION

  2. How do yousee? • Thebrainreadsimagesreceivedbybotheyesbyblendingthemintooneimage. • Thebrain uses thisinformationtogiveyou a sense of distance(howcloseorfaranobjectis).

  3. How do yousee? • Youreyescontainstructurescalledthe cornea and thelens. • As light enterstheeye, itpassesthroughthe cornea, and isrefracted.

  4. How do yousee? • Then, light passesthrough a lens and isrefractedagain. • Thelensdirectsthe light ontothe retina.

  5. How do yousee? • The retina is a tissue at the back of theeyethatissensitiveto light energy. • Twotypes of cellscalledrods and cones are found in the retina.

  6. How do yousee? • Conesrespondtobright light and color. Rodsrespondtodim light. • They are usedtohelpyoudetectshape and movement.

  7. How do yousee? • Fromthe retina, informationpasstotheopticnerve. • Thisnervecarriestheinformation tothevisionarea of thecortex, located in yourbrain’scerebrum. • Thebrainthentellsyouwhatyou are looking at.

  8. Theeye

  9. Theend! • (tarsier)

More Related