LASIK - Refractive Surgery

Treatments

It is a highly effective outpatient procedure and usually referred as refractive surgery or corrective eye surgery or laser vision correction in which a flap of the corneal surface is raised and a thin layer of the underlying tissue is removed using a laser.

LASIK eye surgery was used to correct the following vision problems:
♦ Myopia
♦ Hyperopia
♦ Astigmatism
 

Lasik Surgery Treatment


PROCEDURE:
The LASIK procedure is (customized Lasik And Standard Lasik ) performed by ophthalmologists, medical doctors who are specialized in the surgical treatments of the eye.Here is a general outline of the technique:

Anesthetic eye drops are applied to the eye.

The LASIK surgeon will makes a protective flap to access the inner corneal tissue. During this part of the procedure, your vision may dim & become blurry for about a minute. After the flap is created patients are able to see the flashing fixation light of the laser the bright lights used in the procedure.

Next the inner layers of the cornea will receive computer-controlled pulses of cool laser light. Even though the laser light is invisible, the laser will makes a clicking sound as it will gently reshapes the inner corneal layer to get better in many cases, eliminate your prescription. During this particular part of the procedure, an eye-tracking device will tracks your eye movements to ensure the precise correction

IF you have any doubts regarding Lasik Surgery please enquire with usLasik Surgery Treatment

Following the re-shaping of tissue, the LASIK surgeon carefully repositions and aligns the flap to its original position. Protective shields were placed over the eye to avoid from the accidental rubbing as the flap will heals naturally securely in the next several hours.





After the LASIK eye procedure, patients may feel moderate discomfort irritation for a few hours, but most of the patients will be comfortable after a nap & rest.
 

The primary objective of the assessment is to determine whether you are a candidate for laser vision correction, and if so, which procedure is most appropriate for you.

The decision to have Lasik surgery is an important one that ultimately only you can make for yourself. It is important that you have realistic expectations and that your decision is based on facts, not hopes or misconceptions.

To decide whether you’re a good candidate for LASIK, one of our eye specialists will perform a thorough eye examination and some specialized tests will have to be performed to determine if your eyes are healthy enough for the procedure, what kind of vision correction you need and how much laser ablation is required.

You should not wear any soft contact lenses for at least seven days prior to these tests. If you wear RGP or hard contact lenses, these should not be worn for three weeks prior to these tests. Wearing contact lenses causes swelling of the cornea, which will result in inaccurate measurements and test results. Contact lenses should also be removed for 1 to 3 weeks before surgery.

Naturally, your doctor will fully educate you on the laser vision correction method that will be applied, because it is critical that you are informed about the procedure, the expected results, its risks and the recovery process prior to the laser procedure.

Your eye specialist will also look for signs of dry eye disease, which must be treated and cleared up before LASIK can be performed. Even if your eyes have a normal tear film, your eye surgeon as a precaution may recommend treatment to reduce your risk of developing dry eyes after LASIK.

A corneal topographer is used to measure the curvature of your eye and create a kind of “map” of your cornea. You are also likely to undergo a wave front analysis that sends light waves through the eye to provide an even more precise map of aberrations affecting your vision. Finally, the doctor will ask you about any health problems you have or any medications that you take. You should declare all medications you are on, whether eye drops or otherwise, to the doctor. Some health conditions will disqualify you altogether for LASIK, but others may just postpone the procedure until a later date.

STANDARD LASIK

Standard LASIK involves correcting of the refractive error like myopia, hyperopia or astigmatism as calculated by lens elements utilized in the standard eye care refractions.

Under standard LASIK, initially after creating the corneal flap, your doctor use an advanced excimer laser to reshape the cornea by removing a pre-determined amount of corneal tissue.

The amount of the tissue that will be removed was determined by the pre-operative assessment. These measurements were generally in the agreement with the recent prescription for glasses and/or contact lenses.

The flap was then replaced & within minutes, natural forces hold the flap down on cornea. Within some hours, the surface layer of the cornea (epithelium) will starts to develop over the cut edge of flap to seal into the position. In some days, collagen bonds forms within the cornea surrounding the edge of the flap, permanently sealing it.

This is a painless and safe technique which takes nearly 10 minutes in operating theater, during which the laser was used for less than 1 minute on each eye.
 

BLADE FREE LASIK


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CUSTOMIZED LASIK


LASIK is an excellent option for many patients. Custom LASIK was a laser vision correction technique which helps your LASIK doctor for further customize the alteration to the individual eyes. LASIK doctors are able to focus on the quantity and as well as the quality of the vision. Custom LASIK will result in vision clearer & sharper than ever before. Custom LASIK involves by using sophisticated tools called as aberrometers that use near infrared light to establish how your eye alters the light layer by layer as it will travels by the elements of your eye.Customized Lasik Surgery

How Custom LASIK Works:
Custom LASIK uses a wave front technology to measure the way light will travels through the eye.

This technology is performed by a detailed analysis of the eye which examines the entire optical system. The instrument used will provide detailed information about the unique visual characteristics of the eye, allowing for additional level of the data about your vision.

This, in turn, was enables LASIK doctors to further customize the vision correction. The data is used to guide the laser during the Custom LASIK laser vision correction technique for optimal results.

Advantages:

Custom LASIK is required for some certain patients & desirable for many. Everyone's eyes are different. A pre-procedure consultation with the doctor can helps determine if Custom LASIK was right option for you, that will be based on the particular prescription, healing profile & expectations.

Compared to the other forms of laser vision correction, Custom LASIK was shown or is believed to provide the patients with

♦ A greater possibility of achieving 20/20 vision.

♦ It was potential, in some cases, for the better vision than compared with contacts or glasses

♦ Less occurrence of glare, halos & night vision disturbances

LASEK
LASEK is an eye surgery that combines many of the benefits of other vision correction surgeries.

Laser epithelial keratomileusis, or LASEK, combines benefits of the two most commonly performed procedures -- LASIK and PRK. LASEK eye surgery is used to treat astigmatism, nearsightedness, or farsightedness.

LASEK surgery is said to have several advantages, including:

♦ Complications associated with creating and reattaching the flap in the cornea is avoided.
♦ LASEK eye surgery causes dry eye less frequently than LASIK eye surgery.

In LASEK eye surgery, various techniques are used to retain the very thin corneal surface layer of cells (epithelium) that is used to recover the cornea after the laser sculpting is performed. With LASIK, a thicker flap is created using a laser or mechanical device (microkeratome) under which the laser sculpting is done.

Procedure:
Numbing anesthetic drops are first applied to your eye. Then your surgeon makes a circular cut in the corneal epithelium using a fine blade (trephine). The trephine leaves a small arc-shaped area of the circle uncut, so the epithelial "flap" thats created remains attached to the eye. A diluted alcohol solution is placed over the eye for approximately 30 seconds, which loosens the edges of the epithelium and enables the surgeon to gently push the loosened flap of epithelium to the side.

Numbing anesthetic drops are first applied to your eye. Then your surgeon makes a circular cut in the corneal epithelium using a fine blade (trephine). The trephine leaves a small arc-shaped area of the circle uncut, so the epithelial "flap" thats created remains attached to the eye. A diluted alcohol solution is placed over the eye for approximately 30 seconds, which loosens the edges of the epithelium and enables the surgeon to gently push the loosened flap of epithelium to the side.

The excimer laser is then positioned over the eye to reshape the corneal stroma and correct your vision. After the laser treatment is completed, the epithelial flap is repositioned on the eye.

A special contact lens that acts as a protective bandage is then placed over your eye.

LASEK eye surgery is performed on a walk-in, walk-out basis, and should take about 15 minutes per eye. You are awake for the procedure and shouldnt feel any pain, but your surgeon may give you a mild sedative to help you relax.

PRK PHOTOREFRACTIVE KERATECTOMY

Photorefractive Keratectomy (PRK) is an elective outpatient laser eye surgery for vision correction procedure to improve vision and reduce or eliminate the need for eyeglasses or contact lenses. In PRK surgery, the surgeon uses the excimer laser to reshape the curvature of the eye for patients with nearsightedness, farsightedness and astigmatism. Prior to LASIK, PRK surgery was the most commonly performed laser eye surgery for vision correction. PRK differs from LASIK, in that the surgeon does not create a flap. PRK surgery is best suited for patients with thinner cornea, or with vocational or sports-related limitations where a corneal flap is contraindicated.

PROCEDURE:
♦ Here’s how the PRK surgery procedure works:
♦ There are no scalpels or incisions with the PRK laser eye surgery for vision correction.
♦ The laser is properly calibrated before your PRK procedure begins.
♦ An instrument is used to prevent blinking during the procedure.
♦ Anesthetic drops are applied to numb your eye and prevent discomfort.
♦ The protective surface layer (epithelium), which is too soft to hold the laser correction, is removed. The epithelium will regrow within five days.

Your PRK surgeon then applies computer-controlled pulses of cool laser light to reshape the curvature of the eye. Deeper cell layers remain untouched.

The PRK laser vision correction process is completed in approximately five minutes. Upon completion, the surgeon places a clear bandage contact lens on the cornea to protect it and applies eye drops. Since a layer about as slender as a human hair is typically removed, the cornea should maintain its original strength.

Often, both eyes are treated on the same PRK surgery day. However, your surgeon may decide to do only one eye at a time.

ICL

An ICL is an Implantable Collamer Lens which works with the eye to correct the vision. Dissimilar with the traditional contact lenses which go on the surface of the eye, the ICL is positioned inside the eye in between the iris (the coloured part of eye) & the natural lens. Once it is implanted, the lens will stays indefinitely in the eye. If the vision changes dramatically over time, the lens can be easily removed or replaced.

PROCEDURE:
The ICL procedure is virtually painless, & takes nearly the same time as a typical LASIK surgery to correct each eye. Patient will be given an anaesthetic to numb the eye, so patient won’t feel any pain.

The implant operation is quick & painless, and lasting only about 10-15 minutes. The area surrounding the eyes will be cleaned & a sterile drape will be applied around the eye. When the eye was completely numb, an eyelid speculum will be introduced in between the eyelids to keep you from the blinking while performing the procedure. The recovery time was short & the result of the operation is almost immediate. Most of the patients can resume to their normal activities within a week.

ADVANTAGES OF ICL:

♦ No blood!
♦ No hospitalisation!
♦ Almost all levels of power can be resolved.
♦ Excellent quality of the vision.
♦ Easily removed or replaced ( 5 - 10 minutes)
♦ Cosmetically good as it’s INVISIBLE!!
♦ Fast recovery

An ICL is an Implantable Collamer Lens which works with the eye to correct the vision. Dissimilar with the traditional contact lenses which go on the surface of the eye, the ICL is positioned inside the eye in between the iris (the coloured part of eye) & the natural lens. Once it is implanted, the lens will stays indefinitely in the eye. If the vision changes dramatically over time, the lens can be easily removed or replaced.

PROCEDURE:
The ICL procedure is virtually painless, & takes nearly the same time as a typical LASIK surgery to correct each eye. Patient will be given an anaesthetic to numb the eye, so patient won’t feel any pain.

The implant operation is quick & painless, and lasting only about 10-15 minutes. The area surrounding the eyes will be cleaned & a sterile drape will be applied around the eye. When the eye was completely numb, an eyelid speculum will be introduced in between the eyelids to keep you from the blinking while performing the procedure. The recovery time was short & the result of the operation is almost immediate. Most of the patients can resume to their normal activities within a week.

ADVANTAGES OF ICL:
♦ No blood! ♦ No hospitalisation! ♦ Almost all levels of power can be resolved. ♦ Excellent quality of the vision. ♦ Easily removed or replaced ( 5 - 10 minutes) ♦ Cosmetically good as it’s INVISIBLE!! ♦ Fast recovery MONOVISION
Monovision is a term used to describe the vision when one eye (usually the dominant eye) is able to see well at long distances and the other eye is able to see relatively better close-up because it is nearsighted. Some patients naturally have monovision where one eye has no prescription and the other eye is nearsighted. Other nearsighted patients will fully correct only one eye to allow the other eye to see better at near distances.

Nearsighted (myopic) patients usually see better close up than at distance. Farsighted (hyperopic) patients see better at distance than close up, but all distances may be blurry. Patients with astigmatism may be blurry at any distance. Presbyopic patients are over the age of 40, and usually require reading glasses or bifocals for near vision. Monovision LASIK Surgery may be an option for all of these patients.

During monovision LASIK surgery, nearsighted patients will only receive full correction on their dominant eye and partial correct their nondominant eye so that the nondominant eye remains slightly nearsighted to aid with near vision. In some cases where the preoperative prescription is appropriate, no correction is needed at all for the nondominant (near) eye. In this case only the dominant eye is corrected for distance.

Regardless of age, most patients prefer to have both eyes corrected for distance, as this provides the best quality of distance vision and stereoacuity. Stereoacuity (the ability to perceive three dimensional spatial relationships in our vision) may be adversely affected by monovision as the two eyes are not in focus together. Pilots, professional drivers, golfers, tennis players and skiers are usually better off when they have both eyes corrected for distance. Some monovision patients may find it more difficult to judge distances, or descend curbs or stairs.

For the right patient, monovision can be an option to consider. If you are older than 45, would prefer the clearest possible distance vision, and would not mind wearing reading glasses, we recommend correcting both eyes for distance; we would not recommend monovision LASIK surgery. But if you are over age 45 and you would not mind trading some distance clarity in exchange for a lessened dependence on reading glasses, monovision LASIK surgery might be an option for you.

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