Lasik And PRK
What is LASIK?
LASIK (laser in-situ keratomileusis) is the most common form of refractive surgery - that is surgery performed to correct refractive errors to reduce the dependence on glasses and contact lenses.
There have been over 30 million LASIK procedures performed worldwide. You can be assured that your safety is our number one priority and we have the technology and experience to give you the best result possible.
Laser eye surgery in Perth has never been easier, or more accessible. Ditch the glasses and experience life without limitations.
LASIK (Laser Assisted in Situ Keratomileusis)
LASIK combines two techniques of surgery to correct refractive error. First, a micro thin flap is created on the front surface of the eye (cornea), lifted back and preserved. Next, a cool beam excimer laser sculpts the underlying cornea into a new shape to correct the refractive error. The flap is then repositioned and adheres on its own without sutures after only a few minutes.
Vision recovery typically is rapid, and there is little or no post-operative discomfort. You can usually return to work, and drive, within 24 hours of surgery.
Depending on your age and refractive error, the results from LASIK surgery may last a lifetime.
PRK (Photorefractive Keratectomy) & LASEK
Like LASIK, PRK and LASEK use the excimer laser to shape the cornea. These surface ablation techniques are sometimes recommended instead of LASIK for people with thin corneas because they do not penetrate as deeply into the eye's surface.
They may also be recommended if you are in the armed forces or have physically challenging hobbies or occupation.
In PRK, the epithelium, the layer of cells covering the cornea, is gently removed and the excimer laser sculpts the cornea to correct refractive error. A 'bandage' contact lens is placed on the eye following the procedure to speed the epithelial regeneration, which usually takes three to four days.
LASEK, unlike PRK, attempts to preserve the epithelium. In LASEK, the epithelium is loosened and peeled back to expose the cornea. The excimer laser then reshapes the cornea and the epithelium is placed back into position.
FEMTO-LASIK (Blade free-Lasik)
Femto-LASIK is an advanced, computer guided laser technology that provides a more predictable, safer approach to the important first step of the LASIK procedure, creation of the flap. Femto-LASIK utilises femtosecond technology to produce a light beam generating thousands of pulses per second to form a layer of microscopic bubbles within the cornea to create the flap. Femto-LASIK is more precise, consistent and safer method, making this truly 'all laser LASIK' procedure.
Benefits of Femto-LASIK
With Femto-LASIK's computer controlled technique the risk of complications are dramatically reduced, making it an even safer procedure.
Femto-LASIK's micron level accuracy makes every procedure more predictable, enabling you to choose laser vision correction with increased confidence..
Technology of choice
The Femto-LASIK Laser is the technology of choice among the world's leading LASIK surgeons and ophthalmic teaching institutions.
More people are now eligible
With Femto-LASIK, the flap thickness is adjustable and more predictable, leaving more residual corneal thickness. This is especially beneficial for people who previously did not qualify for LASIK, such as those with thin corneas.
Therapeutic treatment for corneal disease.
There are a number of other treatments we are capable of doing on the femtosecond laser for those with corneal disease such as Keratoconus. Previously corneal graft was the only treatment available.
Is Femto-LASIK better than the standard LASIK procedure?
Both achieve excellent results, especially in light of the unsurpassed level of skill and experience of the surgeons at SARDANA EYE INSTITUTE. Their ability to achieve the desired patient outcome and a superior standard of care are attested to by the many thousands of happy LASIK patients who have undergone LASIK surgery at SARDANA EYE INSTITUTE.
Employing a microkeratome at the first stage of the procedure, in the past has been our most popular treatment method and represents the technology used In 10 million successful procedures worldwide.
Femto-LASIK allows an additional level of precision and predictability. The use of computer controlled laser technology elevates the procedure to an even higher level of safety and accuracy. Every cornea is different. Femto-LASIK is the ideal method to create the exact size, shape and depth of the corneal flap to suit each person, and thereby helps to deliver the best possible result.
Initial studies began in 1995. Dr JAGMOHAN SARDANA started treating patients in 1998. There has been a rapid rise in popularity since and LASIK is steadily becoming the most common performed elective procedure worldwide.
Excellent results can be expected in the range to +4 to -10 diopters provided corneal thickness is adequate. Sufficient remaining corneal thickness must be left deep to the flap after ablation with the laser. This may limit treatment range and compromise optical zone especially in thinner corneas and higher corrections. The corneal flap does not become totally secure for 4 weeks, which is why there are some restrictions on your activities for 4 weeks
LASIK Patient Information
This information sheet is designed to help you understand the operation and expected postoperative course. If you know what to expect during the operation you should be more relaxed and able to assist in making the whole procedure much easier for both of us. The operation will be performed under topical anaesthetic in a specially designed operating suite. This is a purpose built operating suite with a state of the art laser technology.
1. How to Dress and What to Eat and Drink
The laser operating suite is precisely controlled for both temperature and humidity so light comfortable clothes are all that will be needed. It is better to have only a light snack and drink well prior to the operation as anxiety and a full stomach can make you uncomfortable when lying flat. DONOT APPLY PERFUME/DEODRANT on the day of procedure.
2. What to Expect from Our Staff
The staff will greet you when you arrive at the centre and then prepare you for the operation. Prior to the operation several drops of local anaesthetic will be inserted. These are the same drops used when you are first examined and may sting a little for a second. You will then be taken into the laser suite where you will lie flat on a bed with your head under a microscope. Initially the light from the microscope is a little bright but you will rapidly adjust to this. A metal clip will be used to hold your eyelids open and prevent you from blinking. This feels a little tight but does not hurt.
The process is quite complex so we have a series of safety checks in place. You will hear your surgeon talking to the staff as well as to you – to keep you informed of the procedure, step by step. You can talk to the team and ask questions during the procedure. There are some times when movement is not allowed and you will be asked to keep still and quiet. A ring will be placed on your eye. This holds your eye steady and raises the pressure in the eye to enable the flap to be created. As the suction is applied you will feel slight pressure, then your vision should grey then black out. This is a good sign as it means that the pressure is correct for creating the flap.
3. During the Procedure
The ring is then removed. If the surgeon is happy with the flap, laser reshaping will proceed. There are a few steps in getting organised and setting the laser to track your eye movements, then the laser treatment commences. The computer controlling the laser will begin and you will hear a buzzing sound. The surgeon will monitor your eye and tell you how the treatment is progressing. On completion the flap is repositioned and washed with sterile saline. After minutes of drying, the flap will be adhered so the clip and drape can be removed. Antibiotic drops are instilled. Often, despite the after effects of the microscope light and the shield you may see quite well immediately.
4. After the Procedure
Once the anaesthetic wears off the eye will feel gritty and watery for a few hours. You will may find the best solution is to go to bed for those few hours and keep both eyes still and closed. It is imperative that the eye should not be rubbed in the first week as the flap could be dislodged. Vision will fluctuate the first night but if there is severe pain with reduced vision and you should contact us immediately.
Normally vision is quite reasonable the next morning and will improve over the next week. Most normal activities can be resumed immediately but remember that the flap is not secure for some time. For safety swimming should be avoided for 2 weeks, rubbing should be avoided and any situation where the eye could be knocked (eg. contact sports) avoided for 4 weeks. Eyedrops are routinely used for 4 weeks to help the eye heal and prevent infection. It is not uncommon for the eye to feel a little dry, for which lubricant eye drops can be used for comfort.