Question 1

what does lasik involve?

Accepted Answer

Reshaping the cornea: First a flap is created on your cornea with a blade or laser. It is then lifted and a laser is used to reshape your cornea (flatten it or make it more steep), then the flap is put back down. It's blurry for a few days and feels scratchy. Eventually, your distance vision should be excellent.

Question 2

what are the complications of lasik?

Accepted Answer

Several: Most lasik comes out well.  Some with a proclivity to eye dryness may have short term or sometimes chronic eye dryness afterwards.  There are complicated measurements and algorithms to ensure the power is correct but this does not always come out well due to underlying biology so sometimes the correction is not complete and may need further work (enhancement).

Question 3

what must i expect after having lasik?

Accepted Answer

Expect good vision.: Expect good vision the next day and excellent vision within a few days to a week or so.  Expect some glare, haloes, eye fatigue, mild fluctuating vision and dryness for a few weeks.

Question 4

what must i think about if i have lasik?

Accepted Answer

Happy thoughts: Be grateful you live in an era when correction of the vision is possible with this technology.  Be happy you are eligible for correction eyewise and physically.  The procedure itself is fairly rapid, pain free with rapid recovery.  This can be a transforming experience.

Question 5

what causes halos post lasik?

Accepted Answer

Large pupil: If the patient has halo with contact lenses then he/she may have halo after lasik surgery.  Patients with a large pupil tends to get halo with contact or post lasik surgery.  The reason is there corrected or treatment zone is smaller than there pupil size in the dark.  Its important to check the pupil size before surgery in the dark.

Question 6

are there any requirements to have lasik surgery?

Accepted Answer

Evaluation needed: Lasik can be very helpful to eliminate an intrinsic need for eyeglasses.  Many are eligible but your lasik surgeon needs to evaluate you for this as the power needs to be within the limits of the machine and the eye needs to have certain parameters which can be measured ahead of time.

Question 7

is prk preferred over lasik?

Accepted Answer

Depends: The outcomes at 3 months and beyond are essentially equivalent between the two. Prk is used over lasik in a number of situations, such as risk of contact sports, occupation, thin corneas, irregular steepness on topography, or surgeon/patient preference.

Question 8

can lasik correct amblyopia?

Accepted Answer

Amblyopia: Amblyopic therapy is specific  and if there is a refractive error difference between the two eyes that is responsible for the amblyopia then lasik surgery could be considered depending on the age  and other circumstances.  If the amblyopia is uncorrected before the age of six, it is usually not correctable.

Question 9

could anyone have lasik treatment?

Accepted Answer

Evaluation for LASIK: Not all patients are suitable for lasik.  Certain eye or health conditions may prevent success.  Some corrections may be too high to be corrected optimally with lasik. Not all eye problems are correctable with lasik.  The patient's prescription, stability, corneal thickness, corneal curvature, tear production and eye health are just some of the features evaluated.  See a qualified lasik surgeon.

Question 10

can lasik cause lattice degeneration?

Accepted Answer

No: Lattice degeneration is a degeneration; that is, the tissue fades away without any known cause.  It is much more common in near-sighted people.  It turns out that lasik is also commonly performed in near-sighted people.

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