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LASIK

LASIK. Group 7: Juan Penado Stephanie Olivarez Abraham Myers Kent Strawn Kelsey Nixon. Common Types of Refractive Errors. Myopia Hyperopia Astigmatism Others Include: Presbyopia. - a type of refractive error; objects up close appear clearly, while objects far away appear blurry.

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LASIK

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  1. LASIK Group 7: Juan Penado Stephanie Olivarez Abraham Myers Kent Strawn Kelsey Nixon

  2. Common Types of Refractive Errors Myopia Hyperopia Astigmatism Others Include: Presbyopia

  3. - a type of refractive error; objects up close appear clearly, while objects far away appear blurry. Myopia

  4. Hyperopia - distant objects may be seen more clearly than objects that are near.

  5. Astigmatism - a refractive error in which the eye does not focus light evenly onto the retina.

  6. Corrective Lenses

  7. Convergent Lenses • - Thicker in the center • - Magnifies • - Converges light • - Used to treat hyperopia

  8. Divergent Lenses • - Minifies • - Center is thinner • - Diverges light • - Used to treat myopia

  9. Cylindrical/Spherical Lenses - Used to treat astigmatism

  10. LASIK Procedure

  11. Is LASIK right for you? • Eye exam • Are eyes healthy enough • Dry eye disease • Stable vision for a year • Postpone LASIK if your pregnant • Hormones • Dry eyes • Degerative/autoimmune disease • Perscription limit

  12. The Microkeratome Incision • The microkeratome is used to cut a flap in the corneal. • The flap is then pealed back so the laser can began reshaping the corneal surface

  13. The Laser • The laser is now being applied directly to the eye. • The laser is isreshping the cornea based on the patients refractive error. • Nearsightednes • Farsightedness • Astigmastism

  14. Surgery Complete • The laser will continue to spread outward over the surface of the eye until it reaches the edges of the corneal flap. • At which point the surgery is complete. • After completion the surgeon will replace the flap and make sure it is positioned correctly over the eye.

  15. Safety and Complications

  16. Risks • Most common risk is the clear loss of contrast sensitivity, which determines one's absolute clarity of vision • Glare and halos • Dry eye • LASIK flap complications • Infection

  17. Safety and Success • 100% of participants could see well enough to drive a car without glasses or contacts • In skilled hands nearsighted patients can expect to achieve 20/40 vision 98% of time • Uncorrected vision of 20/20 or 20/25 in 90% cases • Loss of best-corrected vision worse than 20/40 occur 3 per 1,000 cases • Daily contact lens wearers have a 1-in-100 chance in developing infection compared to LASIK surgery's 1-in-10,000 chance of infection • Risk for a patient depends on eye condition before surgery

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