LASIK

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LASIK
Done By Jun Siang
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Before Surgery

• Stop wearing contact lenses(Contact lenses change
  the shape of your cornea for up to several
  weeks)thus effecting baseline evaluation.
• The day before surgery, dont usecreams,
  lotions,makeup,perfumes.
• Clean eyelashes(to reduced chances of infection)

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During The Surgury

• First,a numbing drop will be placed in the eye
  and the area around it will be cleaned. A lid
  speculum will be used to hold the eyelids
  open.Next a Microkeratome is used to cut a flap
  in the cornea.The flap is folded back on its
  hinge, and the exposed tissue is dried.Laser
  energy is used to vaporize the corneal tissue,
  the flap is put back into position.A shield will
  be placed over the eye at the end of the
  procedure as protection.

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After Surgury

• The eye may burn, itch, or feel like there is
  something in it.
• The vision will probably be hazy, blurry,
  sensitivity to light, glare, starbursts or haloes
  around lights, or the whites of your eye may look
  red or bloodshot.
• On the first post-operative visit, the doctor
  will remove the eye shield, test the vision, and
  examine the eye.
• Avoid doing things that can harm the eye.

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Risk and Complication

• About 5 of people experienced some complication
  in the 1990s.
• However, if carefully selected surgical
  candidates the rate will be about 1.
• Even when LASIK complications do occur, they
  often can be resolved through laser re-treatments
  or enhancements of the eye.
• It is very rare to have permanent worse vision
  then the vision before with with contact lenses
  or eyeglasses after surgery.

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Difference using Microkeratome and IntraLase
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LASIK Complication

• Incomplete corrections (undercorrection,
  overcorrection, residual astigmatism) or
  regression of effect
• Decentered ablations
• Oversize pupils (pupils wider than treatment
  zone)
• HazeIrregular flap (folds, wrinkles, striae)
• Dry eye
• Diffuse lamellar keratitis
• Epithelial ingrowth
• Infection

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Is Lasik the only Choice ?
Though lasik is a way to correct vision, there
are other ways to correct them like. Wear glasses
or contact lenses is a way. Lasik can expensive,
a little risk is involved while glasses have no
risk involved. However, Wearing contact lens or
Glasses, each had their own drawbacks and
advantages.
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Contact Lenses and Glasses

• Some of the advantages of contact lenses and
  Glasses are
• Easy  maintenance (Glasses)
• Relatively  low cost (Glasses)
• Versatility (Glasses)
• No  change in cosmetic appearance (contact
  lenses)
• More  freedom during recreational and sporting 
  activities (contact lenses)
• Better  peripheral vision than glasses (contact
  lenses)

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Contact Lenses and Glasses

• Some of the disadvantages are
• High  maintenance (contact lenses)
• Easy  to lose (contact lenses)
• Risk  of infection (contact lenses)
• Change  in cosmetic appearance (Glasses)
• Restriction  of peripheral vision (Glasses)
• Interference  with recreational, sporting, and 
  work-related activities (Glasses)
• Easy  to lose or damage (Glasses)
• Continual  dependence (Glasses)
• Infection is more common with contact lenses than
  with vision correction procedures.

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The End
Thank you for your attention.