Page 60 - The UK Guide to Laser Eye Surgery
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60 Frequently Asked Questions
 Q: Can I take a tranquiliser or sedative (e.g. Valium) prior to the procedure?
Rules about this will vary between clinics. Generally it is better to not use sedatives, as these can alter patient cooperation during the procedure. However, patients who suffer from anxiety disorders such
as panic attacks, claustrophobia etc. may benefit from judicial use of sedatives. If this applies to you, your surgeon should discuss the risks and benefits of sedatives thoroughly with you, before surgery. Never self-medicate. Your medical team should provide the necessary required medical dose.
Q: Do laser eye surgery results differ between prescriptions?
Yes. In general, results decrease as prescriptions increase. Results also differ between short-sightedness and long- sightedness. Therefore, when reviewing a clinic’s results, it is important to look at results for prescriptions that are similar to yours as these will provide you with a more accurate picture of your chosen clinic’s success rates.
Q: What is wavefront?
Wavefront treatment has received a lot
of publicity. However, it is important to remember that not all wavefront systems are as good as each other (see Technology section earlier). Wavefront sensors measure the unique optical imperfections of your eye, called ‘higher order aberrations’. These irregularities of your optical system affect the finer quality of your vision, beyond what glasses are able to correct. The most advanced wavefront technology can be used to customise your treatment to account for these higher order aberrations, meaning a safer and more accurate treatment.
Q: I have astigmatism, can I still have laser eye surgery?
Yes. Laser eye surgery can treat astigmatism at the same time as it corrects short or long sightedness. No extra procedure is needed.

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