How long does DLK last?
DLK is defined by infiltrative white cells at the interface of the LASIK flap. These infiltrative cells are diffuse in the central or peripheral flap interface and respond to increased topical steroids. DLK will typically resolve in 5 to 8 days and only rarely has any impact on the final refractive outcome.
How is DLK treated after LASIK?
Given its inflammatory nature, all stages of DLK typically respond well to corticosteroid therapy. In certain cases irrigation beneath the flap followed by flap repositioning can remove subepithelial infiltrates and minimize complications associated with the condition.
What is DLK?
Diffuse lamellar keratitis (DLK) is a sterile inflammation of the cornea which may occur after refractive surgery, such as LASIK. Its incidence has been estimated to be 1 in 500 patients, though this may be as high as 32% in some cases.
What happens if Lasik fails?
Aside from removing too much or too little corneal tissue, surgeons can remove eye tissue unevenly. This mistake can happen if they fail to center the laser properly on the eye. The result can be astigmatism or the general blurring of vision at any distance.
How can DLK be prevented?
To reduce the incidence of DLK, LASIK surgeons should follow the standardized aseptic techniques, including using a single blade for every patient. Blades should not be used on multiple patients because of the risk of HIV and hepatitis, as well as prion-associated disease.
How long does inflammation last after LASIK?
Corneal swelling, known as corneal edema, is common during the LASIK recovery period. For most patients, swelling in the cornea is temporary and will resolve on its own over the course of a few weeks. In some cases, swelling may continue for one or two months, but seldom is edema an issue after week eight.
What is toxic Keratopathy?
The Central Toxic Keratopathy (CTK) syndrome describes a rare, acute, self-limited, non-inflammatory process that yields central corneal opacification and significant hyperopic shift after refractive surgery.
What is lamellar surgery?
Lamellar keratoplasty is an operation in which diseased corneal tissue is removed and replaced by lamellar corneal tissue from a donor. The procedure is performed either to improve vision (optical keratoplasty) or to provide structural support for the cornea (tectonic keratoplasty).
What is infectious keratitis?
Bacterial keratitis is an infection of the cornea (the clear dome covering the colored part of the eye) that is caused by bacteria. It can affect contact lens wearers, and also sometimes people who do not wear contact lenses.