LASIK
Quicker Recovery And Lesser Discomfort.
How lasik work: A detailed guide
Laser-Assisted In
Situ Keratomileusis (LASIK) surgery is a popular and effective procedure for
correcting vision problems such as myopia (nearsightedness), hyperopia (farsightedness),
and astigmatism. This guide will provide an in-depth look at how LASIK surgery
works, the procedure itself, the benefits and risks, and what patients can
expect before, during, and after the surgery.
Understanding LASIK Surgery
LASIK surgery
reshapes the cornea, the clear front part of the eye, to allow light entering
the eye to be properly focused onto the retina for clearer vision. The
procedure uses an excimer laser, a cool ultraviolet light beam, to remove
microscopic amounts of tissue from the cornea with high precision.
Pre-Surgery Preparations
1. Consultation and Eye Exam:
· Patients must have a thorough eye exam to make
sure they are good candidates for LASIK before having the treatment.
Measurements of corneal thickness, corneal mapping, dry eye examination, and
pupil size assessment are all part of this examination.
· Before the procedure, patients should refrain
from wearing contact lenses for a while because they can change the curvature
of the cornea.
2. Medical History and Expectations:
· Along with going over the patient's medical
history, the surgeon will go over the advantages, disadvantages, and
alternatives of LASIK. Patients should be aware that some may still require
glasses or contact lenses following the treatment and should have reasonable
expectations about the results.
The LASIK Procedure
Preparation:
Patients receive numbing eye drops the day of the treatment in order to minimize discomfort. Using a lid speculum, the eyes are kept open .
· Creating the Corneal Flap:
Using a femto second laser or a micro keratome,
a very fine surgical tool, the surgeon makes a thin, hinged flap in the cornea.
After that, the flap is folded back to reveal the cornea underneath.
· Reshaping the Cornea:
The cornea is reshaped by the surgeon by
excising a pre-specified amount of tissue with an excimer laser. A computer
that uses precise measurements of the patient's eye guides the laser to ensure
accuracy.
The corneal tissue is vaporized by the laser's
ultraviolet light pulses, which reshape the tissue to fix the patient's eyesight problems.
· Repositioning the Flap:
The cornea is reshaped, and then the corneal
flap is repositioned by the surgeon. Without the need for stitches, the flap
clings to the underlying corneal tissue on its own.
Post-Surgery Care
· Immediate Aftercare:
Patients may feel burning, stinging, or weeping in their eyes for a brief period of time. Eye drops are administered to keep the eyes moist and to prevent infection and inflammation.
To screen the eyes from irritants and unintentional rubbing, a protective shield can be worn over them.
· Follow-Up Visits:
Appointments for follow-up are essential to track the healing process and make sure problems don't arise. These follow-up appointments usually take place a day or two following the procedure and then on a regular basis over the next few months.
· Recovery and Results:
After surgery, most patients report having better vision within a few days, while complete stability of vision may take several weeks to many months.
During the first few days of recovery, it is imperative to refrain from swimming, intense exercises, and wearing eye makeup.
Benefits of LASIK Surgery
• Fast Recovery:
With little downtime, the majority of patients see a noticeable improvement in
their eyesight in just one or two days.
• High Success Rate: The majority of LASIK patients get 20/20 vision or
greater, making it a procedure with a high success rate.
• Long-Lasting Results: Most LASIK patients have permanent vision correction,
while some may need to wear corrective lenses or upgrades in the future.
Hazards and Difficulties
• Dry Eyes: LASIK may lessen the production of tears in the eyes. With
continued use of lubricating eye drops, this condition typically gets better
over time.
• Glare and
Halos: In low light, some patients may suffer glare, halos, or double vision.
Usually, these symptoms go away with time.
• Undercorrection or Overcorrection: The laser may occasionally remove too much
or too little corneal tissue, necessitating further treatments.
• Flap Complications: Although they are uncommon, problems with the corneal
flap, including as infections or inflammation, can happen.
Conclusion
LASIK surgery is
a procedure that many people with visual difficulties find to be transforming.
LASIK can improve eyesight and lessen the need for glasses or contact lenses by
reshaping the cornea. Patients can make the greatest decisions and have the
best results possible if they are informed about the surgery, preparation,
benefits, and risks. LASIK remains a safe and efficient way to repair vision
despite advances in technology and technique.
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