Summary of common problems in laser correction of myopia

Abstract: wearing contact lenses will have a certain impact on corneal shape, so it has a great impact on accurate data measurement. However, after stopping wearing for a period of time, the corneal shape will naturally return to normal. Therefore, in order to ensure the accuracy of pre-operative examination results, it is required to stop wearing for at least 3-7 days, while those wearing hard contact lenses should remove them for at least 3 weeks to one month.

I am myopic and have astigmatism. Do I need to have two operations? ‘

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‘ are not required. With the development of excimer laser, it can technically correct myopia, hyperopia and astigmatism at the same time.

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will wearing contact lenses affect the surgical results?

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wearing contact lenses will have a certain impact on the corneal shape, so it has a great impact on the accurate data measurement. However, after stopping wearing for a period of time, the corneal shape will naturally return to normal. Therefore, in order to ensure the accuracy of pre-operative examination results, it is required to stop wearing for at least 3-7 days, while those wearing hard contact lenses should remove them for at least 3 weeks to one month. Do you need to be hospitalized after

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laser surgery? After

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laser surgery, you can go home the same day without hospitalization. How long does

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laser therapy take? The real operation time of

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is very short, about 10 minutes for both eyes, and only a few seconds to tens of seconds for laser treatment, that is, 30 seconds is often said to bid farewell to myopia. Is there any pain after the operation of

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? Is everything normal after laser treatment?

after most operations, there is only slight discomfort. If necessary, ask the doctor for a light analgesic or sedative. In the first few hours after operation, your eyes may feel like foreign bodies entering. This feeling will pass soon. You should recheck according to the doctor’s requirements after operation.

laser surgery need surgery? Does it hurt?

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operations are performed on the cornea. Excimer laser is used to cut accurately according to the degree of myopia and astigmatism. It is not a knife operation in the traditional sense. There are no blood vessels on the cornea, and there are abundant nerve endings on the surface. The nerve endings on the corneal surface can be completely anesthetized by eye drops of surface anesthetic. There is no perception or pain during laser treatment. And the operation time is very short, only dozens of seconds. Will vision rebound after

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laser surgery?

when your postoperative vision is stable (it will be better after about a week, but the real stability is generally between 3-6 months, which varies from person to person), the effect of the operation will be lasting, there is almost no regression, and you must adhere to healthy and reasonable eye use after the operation.

What results do I expect to achieve? How is the effect of laser treatment of myopia?

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have achieved satisfactory results at home and abroad. Most patients have removed heavy myopia glasses once and for all. The naked visual acuity after treatment can generally reach the corrected visual acuity before treatment. Some domestic experts wrote “social medical and psychological analysis of LASIK surgery” and pointed out that 98.82% of people felt very satisfied or satisfied with the operation after LASIK. According to the follow-up study of more than 40000 patients with myopia and hyperopia, the effect of LASIK is accurate, and many patients have obtained more than 1.0 vision through LASIK.

laser treatment vision will retreat? The effect of

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laser in the treatment of myopia is lasting and stable. For myopia patients with more than 1000 degrees, it is basically not easy to retreat after operation. Because for the operation of patients with deep myopia, the correction is generally slightly increased according to the degree of myopia. Due to the correct estimation in advance, even if there is a regression in one or two years, it just meets the correction requirements. Some patients retreat and wear glasses again because of their own physique, eye condition and improper postoperative maintenance. It should be emphasized that attention should be paid to protecting vision and adhering to healthy eye use after operation.

when can I start working after the operation?

LASIK can open eyes immediately after operation, restore vision in a few hours, and go to school and work the next day. However, LASEK, PRK and EPI LASIK need to rest for about 4 days before they can go to work and do some simple writing work. It is more appropriate to go to work one week after the operation. It sometimes takes about a month for vision to reach a better state. It is recommended that the operation time be on Thursday, so that you can rest for three days on Friday and weekend, and you can basically go to work on Monday. Is the effect of

LASIK permanent? It will take several months for

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surgery to achieve full effect. After this period, your eyes will be stable and the effect will be permanent. Healthy eye use is particularly important after surgery.

what will happen if I inadvertently turn my eyes or head during the operation?

the intelligent high-speed scanning excimer laser system introduced by our hospital is a new generation of excimer laser vision correction system. It can scan and cut the cornea in different depth distribution according to the refractive error distribution characteristics of each eyeball to form the best corrected vision. The operating table equipment has a head fixing bracket to prevent head movement.

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at the same time, the equipment has infrared guided high-speed tracking technology, which is not only higher than the patient’s eye movement speed, but also higher than the laser irradiation speed, ensuring that the laser is always consistent with the eye, so as to ensure the accuracy of cutting. Does

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surgery have a negative impact on night vision? With the rapid development of

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high technology and the mutual promotion of different scientific and technological achievements in different fields, the technology of laser corneal refractive surgery has made a breakthrough. Flying spot scanning, eye tracking and wavefront aberration have been successfully studied, and the complications such as glare and visual quality degradation have been solved to the greatest extent.