Laser Eye Surgery is used to correct a wide range of prescriptions, making it suitable for correcting mild to severe short sight, mild long sight and astigmatism.
The surgery usually involves reshaping the cornea – the transparent layer covering the front of the eye. This is done using a type of laser known as an excimer laser. Different techniques are used to correct short sight (myopia), long sight (hyperopia) and astigmatism.
LASIK (Laser-Assisted In Situ Keratomileusis) is currently the most frequently performed elective procedure in the world. It is a highly effective treatment which is suitable for most prescriptions. LASIK patients usually experience little or no discomfort, with rapid visual recovery.
LASEK (Laser-Assisted Epithelial Keratomileusis) is an alternative surface treatment without the need to create a corneal flap. LASEK is often recommended to those who are members of professions with strict eyesight regulations e.g. Police, Commercial Pilots and the Fire Brigade, those who play contact sports, and people with thin corneas or dry eyes.
Custom LASIK uses much more detailed information than a conventional eyeglasses prescription to program the excimer laser that reshapes your eye during the vision correction procedure. The wavefront technology used for custom LASIK makes the procedure superior to a conventional LASIK procedure in two ways:
1. Custom wavefront LASIK is more precise. (imagine if during your eye exam, instead of having just "lens 1" and "lens 2" to choose from, you had 24 additional lenses in between these two to choose from! Thankfully, choosing the lens that most accurately corrects your vision for a custom LASIK procedure is done instantaneously by a computer, instead of making you decide. ) With custom wavefront LASIK, the power of lenses required to correct your vision is measured in 0.01 D units.
2. Custom wavefront LASIK is more specific. What does this mean? When your doctor is determining your eyeglass prescription during your eye exam, he or she is evaluating your eye's ability to focus light as a unified whole. One lens prescription is determined for your entire eye with measurements being gathered from hundreds of separate reference points on the front surface of the eye.
After the age of forty-five, the majority of patients will require reading glasses (Presbyopia). This condition is brought on by the natural ‘stiffening’ of the lens inside your eye.
If both eyes are fully corrected following Laser Eye Surgery, then short-sighted patients who remove their glasses to read will require glasses for close up work. With Monovision, one eye is treated to provide good distance vision and the other eye is deliberately left a little short-sighted for close-up work. This is an excellent compromise, however it can take a long time to get used to. Monovision can be trialled by wearing contact lenses of different strengths. You should discuss this during your consultation.
Presbymax is a sophisticated software solution for presbyopia treatment with the Schwind® Amaris laser. Rapid laser pulses are used to model the corneal surface extremely accurately in a very short time, creating several focal points for all distances. The cornea is corrected in the centre for near vision surrounded by an area corrected for distance vision with the transition between both providing intermediate vision.Lens treatment options...