The range of laser eye surgery technology and techniques available today means that approximately nine out of ten patients will benefit from some kind of laser eye surgery.
For those with prescriptions or eye conditions that are unsuitable for refractive laser eye surgery, eyesight correction may still be possible via the surgical implant of permanent contact lenses.
Laser eye surgery is unsuitable for anyone younger than 18, since eye development may still be ongoing. Laser surgery is inadvisable during pregnancy as hormonal activity may affect vision. Patients who are diabetic, suffer from glaucoma or who have had prior optical surgery such as the correction of a squint or detached retina are not automatically unsuitable for laser eye surgery but suitability can only be confirmed as the result of a consultation with an eye specialist.
Since laser eye surgery involves the creation of a corneal incision, patients with thin corneas are likely to be unsuitable for LASIK treatment, but may still be able to benefit from the LASEK procedure.