Laser vision correction refers to a group of surgical procedures designed to correct or improve common vision problems. These errors occur when the eye’s ability to focus light is impaired, resulting in blurry or distorted vision. The main types of refractive errors are: myopia, hyperopia and astigmatism.
The goal of laser vision correction is to reshape the cornea (the clear, front part of the eye) or replace the eye’s natural lens with an artificial lens to correct these errors. By altering the shape of the cornea or the focusing power of the eye, these procedures aim to reduce or even eliminate the need for glasses and contact lenses.
Types of laser vision correction
ASLA
ASLA stands for Advanced Surface Ablation, which is a type of laser eye surgery used in ophthalmology to correct refractive errors such as myopia (nearsightedness), hyperopia (farsightedness), and astigmatism. ASLA is also known as TransPRK or No-Touch PRK (Photorefractive Keratectomy). In ASLA, the laser is used to reshape the cornea, the clear front part of the eye, to correct the refractive error and improve vision. Unlike LASIK, ASLA does not involve creating a corneal flap. Instead, the outer layer of the cornea, called the epithelium, is removed and the laser is applied directly to the corneal surface. This procedure is performed using advanced laser technology.
LASIK
LASIK (Laser – Assisted in Situ Keratomileusis) is a popular refractive surgery procedure used to correct common vision problems such as nearsightedness, farsightedness, and astigmatism. During LASI K, a specialized laser is used to reshape the cornea, the clear front part of the eye, to correct its focusing ability. The procedure involves creating a thin flap on the cornea, which is lifted to expose the underlying tissue. The laser then removes precise amounts of tissue to reshape the cornea, and the flap is placed back in position. LASIK is typically performed as an outpatient procedure and offers the potential for reduced dependence on glasses or contact lenses.
PRK
PRK (Photorefractive Keratectomy) is a type of refractive surgery used to correct common vision problems such as nearsightedness, farsightedness, and astigmatism. In PRK, the outer layer of the cornea, called the epithelium, is gently removed to expose the underlying corneal tissue. A specialized laser is then used to reshape the cornea by removing precise amounts of tissue. The corneal epithelium naturally regenerates over time. PRK is an alternative to LASIK and is particularly suitable for individuals with thin corneas or other corneal irregularities. The recovery period for PRK is usually longer than LASIK, but it offers similar long – term vision correction results.
CLE
Clear lens extraction surgery, also known as lens exchange surgery or refractive lens exchange, is a procedure that involves removing the natural lens of the eye and replacing it with an artificial intraocular lens (IOL). It is commonly performed to correct refractive errors like nearsightedness, farsightedness, or presbyopia, or to address cataracts in younger individuals. The surgery is similar to cataract surgery, but instead of removing a cloudy lens, a clear lens is exchanged. Lens exchange surgery can reduce or eliminate the need for glasses or contact lenses, providing improved vision and enhancing the quality of life for individuals with refractive errors or early – stage cataracts.
Frequently asked questions about laser vision correction
Is laser vision correction worth having?
Have you imagined a life without glasses or contact lenses? Refractive eye surgery can make this dream a reality. This procedure reshapes your cornea to correct vision issues such as nearsightedness, farsightedness, and astigmatism. Hundreds of thousands have reported life-changing results, enjoying the freedom from corrective eyewear. Book an appointment with Paphos Eye and Laser Clinic to determine if it’s the right choice for you.
Is laser vision correction safe?
Yes. Laser vision correction is widely regarded as one of the safest procedures. It’s one of the most performed eye surgeries globally. Advances in technology have minimized risks. Of course, like any surgical procedure, it carries some risks, such as dry eyes or temporary vision disturbances. The likelihood of serious complications though is almost zero. Choosing Paphos Eye and Laser Clinic can further minimize any risks.
What is the success rate of laser vision correction?
The success rate of laser vision correction is very high. Most patients achieve 20/20 vision or better. This makes it an attractive option for those eligible for the procedure. The exact success rate varies based on the type of surgery performed and individual patient factors. The majority of patients report satisfaction with the outcome citing improved quality of life.
How long do the results of laser vision correction last?
The results of laser vision correction are generally long-lasting. For the majority of patients, the correction is permanent. However, vision can naturally change with age. Some patients may eventually need reading glasses or other kind of vision correction later in life due to normal age-related changes. Regular post-surgery eye exams are important to monitor any changes in your vision.
Is laser vision correction painful?
Some people worry about pain during laser vision correction. The procedure itself is typically pain-free. Numbing drops are used to ensure comfort. You might experience a slight feeling of pressure. Some discomfort may occur during the first 24-48 hours after surgery but it’s usually manageable with medication. Patients report that any discomfort is minimal and well worth the results.
How long does laser vision correction take?
Duration of laser vision correction varies, depending on the specific procedure being performed and the complexity of each case. On average, most refractive surgeries are quick, typically lasting around 15 to 30 minutes for each eye. It is important to note that this time frame is about the actual surgical procedure itself.
The overall process, from the time you arrive until you leave, takes a bit longer due to pre-operative preparations, post-operative monitoring and a brief recovery time. Here’s a breakdown of the typical timeline for a refractive eye surgery appointment:
Pre-operative evaluation: Before the surgery, you will undergo a comprehensive eye examination to assess your candidacy for the procedure. This evaluation may include measurements of your eye’s refractive error, corneal thickness and other relevant factors. This part of the process can take anywhere up to 1 hour, depending on the tests required.
Surgical preparation: Once you are deemed a suitable candidate, you will be prepared for the surgery. This includes numbing the eye with anesthetic eye drops and positioning you on the surgical bed. This stage takes around 15 to 30 minutes.
The surgical procedure: The actual surgery itself typically takes between 15 to 30 minutes per eye, depending on the type of refractive surgery being performed.
Post-operative monitoring: After the surgery, you will be monitored for a brief period to ensure there are no immediate complications. This monitoring period can last from 15 minutes to an hour or longer, depending on the surgeon’s protocol.
Recovery time: After the surgery and monitoring, you will be given time to rest and recover at the surgical center, usually for at least 30 minutes to an hour. During this time, you may be provided with post-operative instructions and any necessary medications.
Discharge: Once the surgical team is satisfied with your immediate post-operative condition, you will be allowed to go home. It’s essential to arrange for someone to drive you home, as your vision may be temporarily impaired immediately after the surgery.