1 / 20

Understanding Visual Impairments: From Near-Sightedness to Astigmatism

Learn about different eye conditions such as near-sightedness, far-sightedness, and astigmatism, and the principles of vision including lens focal points and the blind spot. Explore treatments like LASIK surgery for correcting vision problems.

colette-leach
Download Presentation

Understanding Visual Impairments: From Near-Sightedness to Astigmatism

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 http://www.videophile.info/Screen/5thElement/Images/151-5110_IMG.JPG

  2. Lens from a Cow’s Eye http://www.cas.vanderbilt.edu/bsci111b/eye/cow-eye/cow-eye-dissection.htm

  3. LENS Focal Point Principle Axis

  4. http://www.phys.ufl.edu/~avery/course/3400/vision/retina_picture_live.jpghttp://www.phys.ufl.edu/~avery/course/3400/vision/retina_picture_live.jpg

  5. Lens

  6. Blind Spot Focus your LEFT eye here. Slowly move the penny to the LEFT

  7. http://www.ropard.org/learning/introduction.shtml http://www.ropard.org/learning/introduction.shtml

  8. Far Sighted Near Sighted http://www.q8laser.com/engreferror.htm Click here for Nearsighted http://www.q8laser.com/engreferror.htm Click here for Farsighted

  9. FAR SIGHTED http://www.ropard.org/learning/introduction.shtml http://www.ropard.org/learning/introduction.shtml http://www.ropard.org/learning/introduction.shtml CLOSEandSMALL FAR AWAY NEAR SIGHTED CLOSE TO FARandLARGE

  10. FAR SIGHTED FAR AWAY CLOSE TO http://www.ropard.org/learning/introduction.shtml http://www.ropard.org/learning/introduction.shtml http://www.ropard.org/learning/introduction.shtml NEAR SIGHTED

  11. FAR SIGHTED http://www.ropard.org/learning/introduction.shtml http://www.ropard.org/learning/introduction.shtml http://www.ropard.org/learning/introduction.shtml CLOSE TO NEAR SIGHTED FAR AWAY

  12. FAR SIGHTED http://www.ropard.org/learning/introduction.shtml http://www.ropard.org/learning/introduction.shtml http://www.ropard.org/learning/introduction.shtml CLOSE TO NEAR SIGHTED FAR AWAY

  13. Far Sighted http://www.svcmd.com/images/hyperopia_lg.jpg

  14. Near Sighted http://www.svcmd.com/images/myopia_lg.jpg

  15. http://www.jeyping.dynip.com/photos/16s/dsc00306.jpg

  16. Astigmatism(Spherical Aberration) Click Here for Astigmatism Light doesn’t converge to the same point Squinting to help clarity

  17. LASIK Surgery http://www.bjandtony.com/images/04102007_Lasik_BJ.jpg

  18. LASIK Surgery http://www.defense.gov/news/Jan2003/200301142b.jpg

  19. http://www.avclinic.com/lasik.htm Reshaping cornea to compensate for the lens.

More Related