| LASIK Risks and Complications and How They Are Treated |
| Risks & Complications |
Symptoms |
Treatments |
| Incomplete corrections (undercorrection, overcorrection, residual astigmatism) or regression of effect |
Blurry, less-than-perfect vision |
Glasses or contact lenses; eyedrops; re-treatment with laser |
| Decentered ablations |
Visual aberrations* |
Eyedrops; re-treatment with laser |
| Oversize pupils (pupils wider than treatment zone) |
Visual aberrations* |
Eyedrops; re-treatment with laser |
| Haze |
Visual aberrations* |
Eyedrops; re-treatment with laser |
| Irregular flap (folds, wrinkles, striae) |
Visual aberrations* |
Surgical correction; second LASIK procedure |
| Dry eye |
Dry, itchy or scratchy eyes, often with redness and sense of foreign object in eye, and sometimes pain |
Artificial tears; punctal occlusion (blockage of tear ducts in order to retain tear film on eye) |
| Diffuse lamellar keratitis |
Visual aberrations* |
Eyedrops; re-treatment with laser; surgical correction |
| Epithelial ingrowth |
Visual aberrations* |
Eyedrops; re-treatment with laser; surgical correction |
| Infection |
Redness, oozing of eyes, sometimes pain |
Eyedrops; oral medications |
| *Visual aberrations include symptoms such as glare, double vision, ghosting, halos, starbursts, loss of contrast sensitivity, and problems with low-light or night vision. Not all patients experience all symptoms, and some patients with these complications experience no symptoms and require no treatment. |