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Fernández Agrafojo Dora
Myopia (Short-sightedness)
Myopia tends to be a hereditary sight condition in which a person can make out nearby objects clearly whereas far away ones appear blurred to them. The habitual explanation for this is that their eye is longer than that of an average person or that the curvature in the cornea is too great. The rays of light therefore converge in front of the retina, creating blurred images.
In myopia, the rays of light converge in front of the retina and not over it
Hyperopia (Long-sightedness)
With this defect, the rays of light converge behind the retina, since the person's eyes are either shorter than average or their corneas, unlike those of a short-sighted person, are too flat. The result is that objects at close range appear blurred.
In hyperopia the rays of light converge behind the retina
Astigmatism
The cornea of a person with astigmatism has a greater curve at one axis than at the other.
One way to understand it is to say the cornea is shaped more like a rugby ball than a football.
Vision from whatever distance is blurred, distorting the image as do curved, convex and concave mirrors which create the illusion you are taller, broader or leaner than you are. Astigmatism can manifest itself of its own will or through short or long- sightedness.
In the case of astigmatism, inconsistencies in the curve of the cornea cause images to appear distorted
- What are the risks?
In spite of the commendable results, this type of surgery should not be undertaken without serious consideration, for, even though they are rare, risks are run. Nocturnal glare, difficulties in raising the corneal flap, undercorrection and overcorrections are the main ones. Nocturnal glare is most commonly observed in people who are particularly short-sighted, but has become much less so since the introduction of Zyoptix to sharpen vision.
- May a second operation be necessary?
Ten per cent of people, especially those with more than five dioptres, require further treatment to correct the remains of the defect. Normally, this second operation will be performed when the gradation is stable, often 6-12 months after the first one. Thanks to Zyoptix, there has been a considerable fall in the number of severely short-sighted people who have to return for a second operation.
- What will happen if I blink or my eye moves during the operation?
During the operation the eyelids are held open by a speculum and eye movement is monitored by a computer with which the laser is fitted.
- How long does the operation last?
An operation on each eye lasts approximately 10 minutes.
- From what age should I undergo surgery?
Surgery should be undergone from the age of 20 onwards at the point when gradation has remained stable for at least one year.
- When can I begin to lead a normal life again?
Sight is very swiftly regained within the first 24 hours, so you can go back to work the day after the operation.
- Can both eyes be operated on in the same day?
Since the eyes do not need to be covered and the sight comes back exceptionally fast, both eyes are normally treated at the same time with Zyoptix. If the patient wishes to have them treated on separate days then they may do so.
- How long before the operation should I stop wearing my contact lenses?
At least 15 days prior to the operation although this may vary depending on the type of lenses being worn.
- What precautions must be taken after the operation?
The patient must use antibiotic eye drops and artificial tears for the next seven days after the operation. The artificial tears should be used for several weeks.
You should not rub your eyes for a month after the operation.
If you are to partake in sports -which you may- you must wear eye protection.
Make-up is not to be worn for the first month after the surgery.
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| Monday | 10.00 - 15-00 h | 16.00 - 21.00 h |
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| Friday | 10.00 - 15-00 h | 16.00 - 21.00 h |
- Nuestro Centro
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