LASIK Eye Surgery Mumbai

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Lasik Eye Surgery Mumbai

• http//lasikeyesurgerymumbai.in/

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• LASIKor Laser-assisted in situ keratomileusis -
  commonly known as laser eye surgery or laser
  vision correction.
• Refractive
  Corrective Surgery

astigmatism
myopia
Hyperopia
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Facts

• LASIK surgery performed by ophthalmologist.
• Reshaping of the cornea of eye done by laser or
  microkeratome.
• LASIK provides permanent alternative to
  eyeglasses or contact lenses.
• Till 2009 28 million LASIK procedures had been
  performed worldwide.
• Photorefractive keratotomy (PRK) is another
  corrective surgical procedure for refractive
  errors in eye.
• People with very thin cornea or very high myopia
  cannot undergo LASIK or PRK but can get
  implantation of phakic intraocular lens.

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Risk

• The potential risks and effectiveness were
  evaluated by the British National Health
  Institute for Health and Clinical Excellence in
  2006 and it was stated current evidence suggests
  that photorefractive surgery for the correction
  of refractive errors is safe and efficacious for
  use in appropriately selected patients.
• Surveys of LASIK in 2008 reports satisfaction of
  92 to 98 percent. Data from 1998 till 2008 showed
  95.4 percent patient satisfaction (American
  Society of Cataract Refractive Surgery).
• Moris Waxler, former FDA official involved in
  LASIK approval claimed that procedure had a
  failure rate of more than 50. But the same was
  denied by the FDA.
• Small percentage of patients may need another
  surgery. And some may require to use glasses or
  contact lenses even after treatment.

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• Presbyopia A condition in old age in which one
  or both the eyes show diminished ability to focus
  on near objects. This may be due to loss of
  elasticity of the crystalline lens.
• A type of Lasik called Presbylasik, can prove
  helpful for correctionof visual acuity in
  presbyopia.

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Loss of vision due to infection The risk of
vision loss due to infection is greater in
contact lens wearers(12,000) than in infection
from LASIK( 110,000)

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  Risks

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• Higher-order aberrations these are visual
  problems requiring special diagnosis and cannot
  be corrected with normal spectacles.
• There has been observed correlation between size
  of pupil and aberration, occurring more at night
  when size of pupil is greater.
• Light passes from the edge of flap and gives rise
  to aberrations that are spherical in nature.
• Aberrations have also been proposed to be
  pre-operative and have very small size of the
  order of micron and could not be corrected with
  laser beam which are nearly 1000times larger
  (0.65mm)

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• Dry eyes few patients experience a dry eyes
  after LASIK. Although this condition may be
  temporary but it can develop into a dry eye
  syndrome.
• Treatments Artificial tears, Prescription tears,
  Punctual occlusion.
• Punctual Occlusion technique of plugging the
  tear(puncta) duct with collagen or silicone
  device and preventing drainage of eye.
• Some patients may not experience any relief
  despite treatments and develop permanent dry-eye
  syndrome.
• Individuals with pre-existing dry-eye conditions
  such as Sjogrens syndrome should not be treated
  with LASIK.

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• Halos, starbursts and bright lights are
  experienced by some post-LASIK patients. The
  widening of pupil in low light conditions cause
  it to be largerthan the flap. The stromal changes
  in the passage of light cause visual distortion
  of light experienced in form of halos.
• The pre-operative examination of eyes for wider
  pupils can reduce risk of this complication.

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• Other complications include
• Flap complications (0.244) displaced or folded
  flaps, epithelial ingrowth). The risk dexreases
  with increased physician experience.
• Slipped flap- when corneal flap detaches from the
  rest of the cornea. Patients are given sleep
  goggles to prevent them for dislodging the flap
  during sleep. Short operation time decreases this
  risk as the flap does not dry easily.
• Traumatic flap dislocations have been reported
  even after 7 years of LASIK.
• Flap interface particles various sized particles
  with different reflectivities (38.7 cases).
• Infection (0.4 cases)
• Post-LASIKcorneal ectasia a condition where
  cornea bulges forward after LASIk resulting in
  irregular astigmatism.

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• Subconjuctival haemorrhage Reportedly in 10.5
  cases.
• Corneal scarring permanent problems with
  corneas shape making it difficult to wear
  contact lenses.
• Retinal Detachment reportedly in 0.36 cases.
• Uveitis 0.18
• Decrease in atmospheric pressure at higher
  altitudes has not been demonstrated as highly
  dangerous to post LASIk patients but some people
  experience myopic shift at very high altitudes.
• Complications may be categorised as
  pre-operative, intra-operative, early
  post-operative or late post-operative. According
  to UK National Health Service, these occur in
  less than 5 cases.

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• The risks andbenefits of the LASIK refractive
  procedures should be weighed based on the
  personal value system and bias should be avoided
  through not getting influenced by others having
  undergone the procedure.
• The procedure consists
• Creating a thin flap
• Folding it to enable remodelling of underlying
  tissue with laser
• Repositioning the flap

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• Pre-operative procedures
• Patients who used soft contact lenses are
  required to stop wearing them from 5 to 21 days
  before the surgery.
• Those wearing hard contacts should stop wearing
  them 6 weeks prior to the surgery. The duration
  should be increased by 6 more weeks for every 3
  years of wearing hard contacts. The cornea
  should be sufficiently avascular before the
  surgery. The contacts which prevent oxygen supply
  to cornea lead to neo-vascularisation and this
  can cause greater bleeding, pain in surgery.

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• Patients eye prescription should be stable or at
  least one year prior to surgery. The patients
  cornea are examined with a pachymeter to their
  thickness. Using low-power lasers, a topographer
  creates a topographic map of cornea.
• For more details visit http//lasikeyesurgerymumba
  i.in/