Most patients are very pleased with the results of their refractive surgery. However, like any other medical procedure, there are risks involved. That's why it is important for you to understand the limitations and possible complications of refractive surgery.
Before undergoing a refractive procedure, you should carefully weigh the risks and benefits based on your own personal value system, and try to avoid being influenced by friends that have had the procedure or doctors encouraging you to do so.
Before undergoing a refractive procedure, you should carefully weigh the risks and benefits based on your own personal value system, and try to avoid being influenced by friends that have had the procedure or doctors encouraging you to do so.
* Some patients lose vision. Some patients lose lines of vision on the vision chart that can not be corrected with glasses, contact lenses or surgery as a result of treatment.
* Some patients develop debilitating visual symptoms. Some patients develop glare, halos and / or double vision that can seriously affect night vision. Even with good vision on the vision chart, some patients do not see and in situations of low contrast, as at night or in fog, after treatment compared to before treatment.
* You May be treated under treaties or more. Only one percent of some patients achieve 20/20 vision without glasses or contacts. You May require additional treatment, but further treatment May not be possible. May You still need glasses or contact lenses after surgery. May this be true even if you only need a very low order before the surgery. If you used reading glasses before surgery, May you still need glasses after surgery.
* Some patients May severe dry eye syndrome. As a result of the surgery, your eye May not be able to produce enough tears to keep the eye moist and comfortable. The dry eye not only causes discomfort, but may reduce the visual quality due to intermittent blurring and other visual symptoms. This condition will be permanent May. Down by intensive therapy and the use of plugs or other procedures May be required.
* The results are generally not as well in patients with very large refractive errors of all kinds. You should discuss your expectations with your doctor and you realize that May still need glasses or contacts after surgery.
* For some patients sighted, the results May decrease with age. If you are a visionary, the level of improvement in the vision you experience after surgery May decline with age. This can happen if your manifest refraction (a vision exam with lenses before dilating drops) is very different from your cycloplegic refraction (a vision exam with lenses drops after expansion).
* Long-term data are not available. LASIK is a relatively new technology. The first laser was approved for the LASIK in 1998. Hence, long-term safety and effectiveness of LASIK surgery is not known.
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