Are You Suitable For LASIK Surgery?

Are You Suitable For LASIK Surgery?



While LASIK surgery is usually a safe and effective treatment for many common vision issues, it is not for everybody.

If you are considering LASIK surgery, you ought to endure a radical examination by an oculist to see if you are a suitable candidate for the procedure. The examination done ought to include your case history as well as a discussion about your lifestyle.

This article explains the three issues LASIK can fix, the potential side effects of the surgery, who is going to benefit from LASIK surgery, and the seven eye tests which will help you and your eye care specialist determine if LASIK is good for you.

What is LASIK?

LASIK stands for Laser-Assisted In Situ Keratomileusis. It's a surgery that reshapes the cornea that is the clear, spherical dome at the front of your eye that will correct three eye problems:

  • Nearsightedness (myopia), happens when your distance visual sense is blurred (and close-up vision is clear). This suggests that the cornea is more curved than it normally should be.
  • Farsightedness (hyperopia), is when your close-up vision is blurred (and your distance visual sense is clear). This suggests the cornea is just too flat.
  • Astigmatism is when vision is blurred or distorted as a result of the cornea being shaped irregularly.

During LASIK surgery, an eye surgeon makes a tiny low flap in the cornea and folds it back. Then they use an optical laser to reshape the membrane and fold the flap back. The surgery is quick, it takes about fifteen minutes for each eye—and is comparatively painless.

LASIK surgery has a successful track record, notably among those who have myopic. Studies recommend that 94 per cent of moderately myopic folks walk out of the procedure with 20/40 vision or higher (20/20 vision is the ideal). And, 70 per cent of patients enjoy 20/25 vision or higher.

Potential Side Effects
Every style of surgery carries its share of risks. Most side effects of LASIK eye surgery resolve within weeks or months. You ought to bear in mind those side effects of whether or not to go through the surgery. Potential facet effects include:

  • Flap issues, notable infection and excess tears from folding back the flap throughout the surgery.
  • Glare, halos and visual defects, which can make seeing at nighttime a challenge.
  • ·Under-correction, which might happen if insufficient tissue is removed from the eye. If this happens, another surgery (an "enhancement") is also performed.
  • Over-correction, which happens once an excessive amount of tissue is removed. Fixing an over-correction is trickier than an under-correction.
  • Astigmatism, which might be caused by uneven tissue removal. Glasses, contact lenses, or another surgery may well be necessary.
  • Corneal ectasis, a bulging and cutting of the membrane i.e., cornea. Treating this might mean wearing corrective glasses or contact lenses.
  • Vision loss or changes, which might leave some women unable to have a clear vision as they did before. Still, these changes are mostly rare.

Dry Eye after LASIK

A study found that 1/2 of LASIK patients had full-fledged dry eye one week after they had LASIK surgery. The number fell to 40 per cent after one month and after six months it fell between 20 per cent and 40 per cent. Dry eye is often treated with eye drops.

Suitable Candidates for LASIK

It's possible that LASIK's successful data is partly because of proper vetting, which means only women who meet the criteria can have the surgery. Candidates for LASIK surgery should be healthy adult women who are twenty-one years or older and have been using the same eyeglass or contact lens prescription for a minimum of a year.

On the other hand, LASIK is not advisable for women who:

  • Are pregnant or nursing
  • Have unsteady hormones thanks to sicknesses like diabetes
  • Take medications causing vision fluctuations

This doesn't mean that everybody else is good to proceed with LASIK surgery. Most surgeons will make sure that acute or chronic conditions are adequately managed or alleviated before approving somebody for LASIK surgery.  Some of these conditions include:

  • Autoimmune diseases like HIV/AIDS, lupus, MS (multiple sclerosis, or arthritis
  • Cataracts or eye disease
  • Diabetes
  • Any eye injury or infection

If you are getting treated with one of these problems, you ought to still go through the LASIK prequalification tests and work together with your oculist to make your eyes healthy.

Prequalification Tests for LASIK Eye Surgery

Your eye doctor should perform these tests to help in deciding whether or not you should proceed with LASIK surgery. These tests include:

Prescription Check

Before LASIK, an oculist uses cycloplegic eye drops. These drops temporarily paralyze the focusing muscle within your eye. This enables the doctor to measure your total prescription while not forcing you to focus too hard. Basically, it lets the oculist collect the raw information of your true vision.

Eye Muscle check

In this, a binocular vision assessment is done for checking how your eyes work together. Your doctor wants to make sure that you don't have a binocular vision disorder. In this, the eyes cannot merge the images into one within the brain

The disorder may result in several vision issues, such as dizziness and double vision to light sensitivity i.e., photophobia and poor depth perception. Such disorders could interfere with positive LASIK results; therefore, your oculist may want to eliminate it as a risk issue.

Tear Analysis

Teat analysis is done with the qualitative and quantitative tear film tests which examine your natural tears. If either one of these measures isn't optimum, your doctor could opt to delay the LASIK procedure till the standard quality and quantity of your natural tears are achieved.

Cornea Measurements

Corneal topography is a computerised technique for determining the precise shape and form of the cornea. Once measurements are taken, they are computed and placed into colour maps. Hotter colours, such as red show steeper areas whereas cooler colours show flatter areas.

Some patients have a cornea shape and form that doesn't cause issues before LASIK, however, it may place them in danger of developing a corneal disease, like astigmatism, after LASIK is done. This disease is caused when the cornea thins out and bulges outward to create a cone.

Wavefront Analysis

Wavefront analysis is comparatively a new development in eye care and may be important to measure vision deficits called higher-order aberrations. These are just like lower-order aberrations, like myopia, longsightedness, and astigmatism. Altogether these aberrations and imperfections of the cornea cause distorted vision.

Higher-order aberrations appear to be apparent in some patients and sometimes cause symptoms like diminished scotopic vision, glare, and halos around lights.

Corneal Thickness measuring

A corneal thickness measuring (also called pachymetry) discloses the thickness of the cornea and whether or not it's swollen. This fast and straightforward measuring is very important for potential LASIK patients as the surgery will depend on the health of the cornea. Women with very skinny corneas might not be suitable LASIK candidates.

Pupil Size measuring

Women with naturally giant pupils or pupils that dilate heavily in the dim light are prone to a lot of glare, halos, and contrast issues when they have had LASIK surgery. However, with today's optical laser techniques, this is less of a problem.

Nonetheless, pupil size is measured with special devices, like an infrared pupillometer, in order to devise a better surgical plan.

LASIK’s acronym is laser-assisted in situ keratomileusis. It is a surgery that reshapes the cornea to correct myopia, longsightedness, and astigmatism. LASIK surgery can have some possible side effects, however, most resolve within some weeks or months.

Healthy adults over the age of 21 who have been using the same eyewear or lens prescription for a minimum of one year are usually suitable candidates for LASIK surgery. Women who are pregnant or nursing, with unsteady hormones because of sickness, or if they take medications that will cause vision changes usually are not suitable candidates.

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