General

Because PRK does not involve a permanent flap in the deeper corneal layers (the LASIK procedure involves a mechanical microkeratome using a metal blade or a femtosecond laser microkeratome to create a 'flap' out of the outer cornea), the cornea's...

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I've recently had my tests run to see if I was a canidate for Lasik. The doctor I went to is out of LasikPlus in Atlanta, Ga. Previous to meeting this doctor I checked out Emory Vision in Atlanta. They told me I had a thinner than normal cornea and...

LASIK was the best thing I’ve ever done for myself. Some say that is quite expensive but its well worth it. The procedure really changed my vision into much better as I expected, and I will bring the benefits of it for the rest of my life, so price...

IntraLASIK is a form of refractive eye surgery similar to LASIK that creates a corneal flap with a femtosecond laser microkeratome rather than with a mechanical microkeratome, which uses a steel blade. The only difference between LASIK and IntraLASIK...

Operation of an aircraft is a visually demanding activity performed in an environment that is not always user friendly. Currently, over 50% of the civil airman population uses some form of visual correction. Aviators considering PRK should know that...

Some complications of PRK include: Long healing period Pain Glare, halos, or starburst Aberrations Under- or over-correction Recurrence of myopia Increased intraocular pressure Corneal haze Scarring Reduced best corrected visual acuity...

It is estimated that up to 80% of the myopic population may physically qualify as potential PRK candidates.[citation needed] There are a number of basic criteria which a potential candidate should satisfy: Normal ocular health Age 19 years or older...

Photorefractive keratectomy (PRK) and Laser-Assisted Sub-Epithelial Keratectomy (LASEK) are laser eye surgery procedures intended to correct a person's vision and reduce his dependency on glasses or contact lenses. The first LASEK procedure was performed...

While refractive surgery is becoming more affordable and safe, it may not be recommended for everybody. Patients that have medical conditions such as glaucoma or diabetes, uncontrolled vascular disease, autoimmune disease, pregnant women or people with...

The Council for Refractive Surgery Quality Assurance, an independent, nonprofit, patient/consumer health organization that provides information about refractive surgery and certifies LASIK surgeons, considers surgeons with results of 90% of patients...

Thermal keratoplasty is used to correct hyperopia by putting a ring of 8 or 16 small burns surrounding the pupil, and steepen the cornea with a ring of collagen constriction. It can also be used to treat selected types of astigmatism. Laser thermal...

Radial keratotomy (RK) uses spoke-shaped incisions (usually made with a diamond knife) to alter the shape of the cornea and reduce myopia or astigmatism; this technique has now been largely replaced by the other methods (that use excimer laser)....

Photorefractive keratectomy (PRK) is an outpatient procedure generally performed with local anesthetic eye drops (as LASIK) . It is a type of refractive surgery which reshapes the cornea by destroying microscopic amounts of tissue from corneal stroma,...

Consists in cutting a flap in the cornea in order to access the tissue underneath. Automated lamellar keratoplasty (ALK) Laser Assisted In-Situ Keratomileusis (LASIK) is the most commonly performed refractive surgery procedure as of 2007. Surface...

Refractive eye surgery is any eye surgery used to improve the refractive state of the eye and decrease dependency on glasses or contact lenses. This can include various methods of surgical remodelling of the cornea or cataract surgery. The most common...

Although relatively uncommon, the following are some of the more frequently reported complications of Epi-LASIK [1]: Over/undercorrection Visual acuity fluctuation Halos around light sources Starbursts around light sources Decentered ablation...

Epi-LASIK is a refractive surgery technique designed to reduce a person's dependency on eyeglasses and contact lenses. Invented by Dr. Ioannis Pallikaris (Crete, Greece), the technique is basically an automatic LASEK without alcohol: a device similar...

The reported figures for safety and efficacy are open to interpretation. In 2003, the Medical Defence Union (MDU), the largest insurer for doctors in the United Kingdom, reported a 166 per cent increase in claims involving laser eye surgery; however, the...

The surveys determining patient satisfaction with LASIK, have found most patients satisfied, with satisfaction range being 92–98 per cent.[25][39][40][41] Some patients with poor outcomes from LASIK surgical procedures report a significantly reduced...

Typically, the cornea is avascular, because it must be transparent to function normally, its cells absorbing oxygen from the tear film. Thus, low oxygen-permeable contact lenses reduce the cornea's oxygen absorption, sometimes resulting in corneal...

Although there have been improvements in LASIK technology[28][29][30] , a large body of conclusive evidence on the chances of long-term complications is not yet established. Also, there is a small chance of complications, such as slipped flap, corneal...

The incidence of epithelial ingrowth has been estimated at 0.1%.[21] Glare is another commonly reported complication of those who have had LASIK.[25] Halos or starbursts around bright lights at night are caused by the irregularity between the lasered...

The incidence of diffuse lamellar keratitis (DLK)[6], also known as the Sands of Sahara syndrome, has been estimated at 2.3%.[21] When diagnosed and appropriately treated, DLK resolves with no lasting vision limitation. The incidence of infection...

The incidence of flap complications has been estimated to be 0.244%.[16] Flap complications (such as displaced flaps or folds in the flaps that necessitate repositioning, diffuse lamellar keratitis, and epithelial ingrowth) are common in lamellar corneal...

The incidence of refractive surgery patients having unresolved complications six months after surgery has been estimated from 3%[4] to 6%.[5] The following are some of the more frequently reported complications of LASIK[6][5]: Surgery induced dry eyes...

Wavefront-guided LASIK[3] is a variation of LASIK surgery where, rather than apply a simple correction of focusing power to the cornea (as in traditional LASIK), an ophthalmologist applies a spatially varying correction, guiding the computer-controlled...

Higher-order aberrations are visual problems not captured in a traditional eye exam which tests only for acuteness of vision. Severe aberrations can effectively cause significant vision impairment. These aberrations include starbursts, ghosting, halos,...