iLasik for 2 Eyes
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LASIK or Lasik (laser-assisted in situ keratomileusis), commonly referred to as laser eye surgery or laser vision correction, is a type of refractive surgery for the correction of myopia, hyperopia, and astigmatism. LASIK surgery is performed by an ophthalmologist who uses a laser or microkeratome to reshape the eye's cornea in order to improve visual acuity. For most people, LASIK provides a long-lasting alternative to eyeglasses or contact lenses
LASIK is most similar to another surgical corrective procedure, photorefractive keratectomy (PRK), and LASEK.
Traditional LASIK Surgery
LASIK was originally approved by the FDA in 1995, which means it has been performed successfully for over 20 years now.
It’s the most common type of vision correction and over 99 percent of patients are happy with their results.
During LASIK, your ophthalmologist will create a corneal flap on your eye. This allows the “stroma” layer underneath to be accessed and your corneal tissue can be reshaped.
To create this flap, your doctor will use a small, bladed instrument called a microkeratome. This process is very safe but there is a small margin for error since the flap is created by hand.
iLASIK is often referred to as “blade-free LASIK.” It offers the traditional benefits of LASIK while improving both the quality and the accuracy.
During iLASIK, your ophthalmologist will create the corneal flap with a femtosecond laser instead of the microkeratome. Before the procedure, your surgeon will create a 3D map of your eyes, using wavefront technology to make note of any problems. The excimer laser will use this information to make adjustments custom to your eyes!
This creates a completely customized procedure for your eyes which is safer and usually results in fewer complications. And because the laser is more precise than the microkeratome, your outcomes will be much more accurate and more predictable.
iLASIK vs. LASIK: Which is Right for You?
So which should you choose — iLASIK or traditional LASIK? If you are having a hard time deciding, you can take comfort in the fact that traditional LASIK is still very safe and effective.
The microkeratome is incredibly safe but there is a higher risk of complications associated with it. Ultimately, the best way to determine what is the right option for you is to schedule a LASIK consultation with our expert LASIK surgeons in NYC.
Contact Stahl Eyecare Experts in NYC today to schedule your LASIK consultation — we will go over the benefits of LASIK and help you make the decision that is best for you.
Photorefractive keratectomy (PRK) and laser-assisted sub-epithelial keratectomy (or laser epithelial keratomileusis
(LASIK) are laser eye surgery procedures intended to correct a person's vision, reducing dependency on glasses or contact lenses. LASEK and PRK permanently change the shape of the anterior central cornea using an excimer laser to ablate (remove by vaporization) a small amount of tissue from the corneal stroma at the front of the eye, just under the corneal epithelium.
The outer layer of the cornea is removed prior to the ablation.
A computer system tracks the patient's eye position 60 to 4,000 times per second, depending on the specifications of the laser that is used. The computer system redirects laser pulses for precise laser placement. Most modern lasers will automatically center on the patient's visual axis and will pause if the eye moves out of range and then resume ablating at that point after the patient's eye is re-centered.
The outer layer of the cornea, or epithelium, is a soft, rapidly degrowing layer in contact with the tear film that can completely replace itself from limbal stem cells within a few days with no loss of clarity. The deeper layers of the cornea, as opposed to the outer epithelium, are laid down early in life and have very limited regenerative capacity. The deeper layers, if reshaped by a laser or cut by a microtome, will remain that way permanently with only limited healing or remodeling.
With PRK, the corneal epithelium is removed and discarded, allowing the cells to regenerate after the surgery. The procedure is distinct from LASIK (laser-assisted in-situ keratomileusis), a form of laser eye surgery where a permanent flap is created in the deeper layers of the cornea.
There are a number of basic criteria which a person should satisfy
Normal ocular health
Age 18 years or older
Stable refraction error (no noticeable change in the last year) correctable to 20/40 or better
Between −1.00 to −12.00 diopters of Myopia
Not pregnant at the time of surgery
Realistic expectations of the final results (with a complete understanding of the benefits, as well as the possible risks)
Pupil size 6 mm or less in a dark room is ideal (but some newer lasers may be acceptable for larger pupils)
Assessment of allergies, (e.g., pollen) where allergy may complicate the eyelid margins following surgery leading to dry eye.
There are also some pre-existing conditions that may complicate or preclude the treatment
Collagen vascular disease (e.g., corneal ulceration or melting)
Ocular disease (e.g., dry eye, keratoconus, glaucoma)
Systemic disorders (e.g., diabetes, rheumatoid arthritis)
History of side effects from steroids
Granular corneal dystrophy type II
PRK AND LASIK
A systematic review that compared PRK and LASIK concluded that LASIK has shorter recovery time and less pain. The two techniques after a period of one year have similar results.
A 2016 systematic review found that it was unclear whether there were any differences in efficacy, accuracy, and adverse effects when comparing PRK and LASEK procedures among people with low to moderate myopia. The review stated that no trials have been conducted comparing the two procedures on people with high myopia.
A 2017 systematic review found uncertainty in visual acuity, but found that in one study, those receiving PRK were less likely to achieve a refractive error, and were less likely to have an over-correction than compared to LASIK.
📌 Alcohol assisted PRK
📌 Tran epithelial PRK (Trans PRK)
📌 ASA (Advanced Surface Ablation) LASEK
Uses Amoils Brush and gas cooling to reduce the pain
Uses mitomycin in an attempt to reduce post-operative haze but is of dubious effectiveness. Possible long-term side effects are unknown.