What tests do I need to do for myopia surgery?

The preoperative examination of Shanxi Aier Ophthalmology mainly includes more than 20 items: bare eye vision, corrected visual acuity, slit lamp examination, tear film rupture, tear secretion, computerized optometry, comprehensive refraction, optic eye measurement, intraocular pressure measurement, light and dark pupil examination, three-dimensional corneal topography Tom corneal topography Armas corneal topography Corneal thickness measurement, axial measurement, mydriatic fundus examination, accommodative function examination, wavefront phase contrast examination, iris recognition, corneal endothelial count, etc.

Before myopia eye surgery, visual acuity examination, intraocular pressure, corneal thickness examination, visual function examination, and corneal endothelial cell technique examination are performed. Myopia eye surgery is now relatively mature and has a wide range of applications, which can avoid damage to the cornea after the examination, and can be calculated according to the results of the examination to remove the corneal thickness.

Jia Ximei, Director of the Refractive Department of Huizhou C-MER Lin Shunchao Eye Hospital: What examinations do I need to do before myopia surgery? What is the process of preoperative examination?

Initial examination items: visual acuity, refraction, fundus (dilated pupil), intraocular pressure, understanding the patient's medical history, computerized optometry, corneal topography, corneal thickness and other corresponding examinations necessary for surgery, etc., the initial examination is to detect and understand the patient's eye and physical health conditions, so as to decide whether it is suitable for refractive laser surgery;

The follow-up visit is to further examine the patient's eye before surgery, accurately measure the physiological structure and refractive parameters of the eye, and understand the patient's working and living conditions, so that the surgeon can determine the most suitable surgical method for the patient and formulate the best surgical plan to ensure the quality of the operation.

There are many examinations before myopia surgery, which mainly include two aspects:

or mausoleum. 1. Examination of the whole body, including electrocardiogram, virus-related examination, coagulation mechanism examination, blood routine, etc.;

Clause. Second, the most important thing is the examination of the eye, because the operation is carried out on the cornea, so it is mainly around the cornea to be examined, including corneal curvature, corneal topography, corneal thickness, as well as eye ultrasound and fundus examination.

After the above examinations, it can be determined whether there are any indications or contraindications for surgery. After the examination, if the condition of the whole body and the condition of the eyes meet the requirements of the operation, the operation can be operated**, and the operation time is relatively short, almost ten minutes can be over. After the surgery, the routine use of antibiotics can be used for 1-2 weeks, and it can completely return to normal.

Myopia surgery needs to be examined, there are many myopia surgery itself is not complicated, and whether it can be successful has a lot to do with hospital equipment, hospital experience and postoperative Baozhou Mengyan maintenance, etc., the more important thing is that the data of preoperative examination affects the final judgment of doctors.

Directly decided, the surgical plan and the surgical examination items include naked eye visual acuity, intraocular pressure examination, computerized refraction, apparent refraction, dilated pupil refraction, corneal topography, corneal thickness measurement, external eye examination, slit lamp examination, lobe, lights-out examination, fluid rupture time measurement, tear secretion test, wavefront phase difference, post-pupil dilatation search, fundus examination, axial measurement and other items. The doctor's former residence, these items prepare the surgical plan to ensure the safety of the operation.

Undergoing myopia surgery requires a comprehensive eye exam to ensure the safety and effectiveness of the surgery. It generally includes the following items:

1.Visual acuity examination: determine the refraction and power of myopia through corrected and uncorrected visual acuity examination and refraction examination; Click here for the Eye Surgery Sheet.

2.Intraocular pressure measurement: by measuring intraocular pressure, eye diseases such as glaucoma can be ruled out;

3.Fundus examination: through fundus examination, to find out whether there are macular degeneration and other lesions, and to check whether there are other eye diseases;

4.Corneal topography: examines the morphology of the cornea, as well as parameters such as curvature and thickness, to determine which myopia surgery is appropriate for the patient;

5.Tear Film Stability Test: Check the secretion and quality of the tear film to ensure that the eye is moist after surgery.

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I did it at Xinghui Ophthalmology before, I don't know if it's the same in other places, so I'll do it first.

I made a lens, I went in to fill in my information first, and then I measured one of my visions, and then I also measured a jet test that seems to be called intraocular pressure, and then I did an optometry. Then I made a corneal topography map, which was to look at the blue bars, and then I started to turn, and my eyes were dizzy. I also made a high-level thing called aberration, but I didn't understand what it was for.

Also helped me take a look at my dry eyes and some of the emotional condition of my eyes. Then I communicated with the doctor, and I decided early on to do crystallography and I didn't have much of a problem. Then I measured the endothelium, as if to say look at my endothelium, the endothelium is in**oh.

Then I had another optical test and did a very magical examination, what is it called ultrasound examination, which is to card a cup of good cups, and then there is a probe, it may be the young lady and gentleness who did the examination, I think although it looks scary, it is actually okay to sit down.

After doing this examination, I took a break with my grandson for a while, and then began to do mydriasis, which I didn't want to do before, because I would not be able to see clearly and be photophobic for several hours. But when I said I wanted to do it obediently.

I had my eyes dilated again, and I did a very bright examination, I can't remember what it was called, and my braincase was faint at that time, so I remembered to look at the fundus.

Then the doctor talked about my results and the whole process was not as difficult as the previous examination of my throat surgery.

Why do I have to have a preoperative check-up?

1. Detect eye diseases through surgical examination.

The purpose of preoperative testing for myopia is to first determine whether surgery can be performed and to rule out contraindications to surgery, such as potential keratoconus, severe dry eye, and thin corneas.

In addition, preoperative examination can also screen for other eye diseases, especially fundus diseases, such as fundus hemorrhage, retinal tears and detachments, and can exclude some people who cannot undergo surgery.

2. Preoperative examination helps doctors choose the appropriate surgical method.

With the development of myopia surgery, it is important to choose the right surgery for you. Through preoperative examination, doctors can make an analysis and judgment on the eye condition of different patients, and use this for preoperative evaluation to choose the appropriate surgical method for patients.

In addition, the pre-initial consultation allows the patient to have a certain understanding of the myopia surgery process, and at the same time allows the patient to ask questions, so that the patient can better cooperate with the doctor's examination and **.

Therefore, preoperative examination is a prerequisite for surgery.

What are the preoperative examination items for myopia?

Through strict preoperative examination, it is determined whether the eye condition meets the surgical standards, including more than 20 preoperative examination items such as computerized optometry, intraocular pressure measurement, comprehensive optometry, main eye measurement, corneal topography, ocular axial measurement, dilated pupil, dilated refraction, and fundus examination. [1]

What do I need to prepare for myopia surgery?

Before myopia surgery, patients who wear contact lenses need to stop wearing lenses until the cornea is free of abnormalities and the refractive status and corneal topography are stable before they can undergo surgery. Recommended discontinuation time: more than 1 week for flexible spherical lenses, more than 3 weeks for flexible astigmatism and rigid lenses, and more than 3 weeks for orthokeratology lenses, or there is clear evidence that corneal morphology has stabilized.

Therefore, a thorough preoperative examination is the basis for a good postoperative outcome, and although there are many preoperative examinations and it takes a long time, it is worth it to maintain good vision in the future.

There are many items to be examined before myopia eye surgery, mainly including two aspects, first, simply for myopic eye examination, for myopic eye surgery, the purpose of mydriatic eye refraction is to understand, what is the refractive state of the eye, that is, how many degrees of myopia, how many degrees, how many degrees, false power, to be clear, what is the degree that really needs to be corrected by surgery, second, for the examination of eye surgery contraindications, to check the cornea at the surgical site, to understand, corneal thickness, curvature, Morphology, whether it is normal, but also to understand whether the patient has other eye diseases, if there are cataracts, whether there are other contraindications to surgery such as inflammation.

There are two tests that need to be done before today's surgery, the first one is to check whether the thickness of your cornea can meet the standard of laser surgery, and the second is to check whether the degree of myopia in your eyes is compared with the degree of myopia last year, and it cannot be done if it rises by more than 200 degrees.

Corneal quality (e.g., inflammation, adequacy) is usually checked; There is also a check for eye diseases, if there are eye diseases such as cataracts, glaucoma, severe dry eye syndrome, etc., it is not possible to do myopia surgery; It is also necessary to check the fundus condition, such as whether the retina is in good condition. For specific examinations, you need to go to a tertiary hospital to consult a doctor.

And there may be some complications after myopia surgery, such as dry eye syndrome and the like, so you need to reduce eye pressure after myopia surgery, and you can't read books, mobile phones and computers within a week after the surgery. Hope it helps.

Specifically, there are about 20 detailed examination indicators, including unaided visual acuity, corrected visual acuity, anterior chamber depth, corneal topography, ocular axis, corneal thickness, ocular surface condition, fundus condition, etc. These tests take about 2 hours, and the results are available after the examination.

What are the preoperative tests for myopia surgery?

The examination before myopia eye surgery is more careful, including a standard refractive examination, to find out how many degrees he is, corneal topography to be done, and the thickness of the cornea to be measured. In addition, it is necessary to check the fundus, rule out whether there are retinal lesions, if there is any need for further **, as well as include some measurements like this eye axis, some measurements of biological parameters of the eyeball, etc., these things are within a category of routine examination. Want to have femtosecond myopia surgery and don't know where to do it?

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Myopia surgery is mainly divided into laser surgery and intraocular lens implantation, the preoperative examination of the two is generally the same, but there are slight differences, laser surgery is the most common surgery at present, and laser surgery is selected for conventional prescriptions. Tests that are usually done before surgery are as follows:

1. Laser surgery:

1. Corneal examination: Laser surgery first examines the cornea to see if there is severe endothelial dystrophy in the corneal endothelium. At the same time, it is necessary to check whether the corneal thickness is sufficient, and the laser surgery can only be performed when the vision is reached by wearing glasses;

2. Refractive examination and comprehensive refractor examination: it is a more important examination, and the comprehensive refractor is mainly to adjust the specific eye power, such as 300 degrees of myopia, combined with 150 degrees of astigmatism, and then how many axial positions are aligned to hit the laser;

3. Corneal topography examination: the main purpose is to check the morphology of the cornea, if it is keratoconus, myopia surgery cannot be performed. Because after the light, the original cornea will emerge, which will affect the effect;

4. Fundus examination: do a three-way mirror to check whether there are holes in the area around the eye, people with high myopia are prone to holes in the fundus, if there are holes, open the laser in advance to seal them.

2. Intraocular lens implantation:

On the basis of the above checks, a UBM examination is required to check whether the anterior chamber depth is sufficient to install the crystal. Regardless of any eye surgery, a dry eye exam is done to check for dry eyes. If the eyes are particularly dry, surgery should be done with caution.

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There are many things to check:

1.Check your vision to see afar.

2.Check your near vision.

3.The eyelids are examined for disease or deformity, the eyelids are functioning properly, and the eyelids are checked for size.

4.Check for lacrimal duct disease.

5.Check whether the conjunctiva and cornea are normal, and rule out related diseases and contraindications to surgery.

6.The anterior chamber is examined to determine whether the aqueous humor is cloudy, bleeding, or empyema.

7.Check the pupil for dim light, bright light, and light reflex.

8.The lens is checked for clarity and cataracts are excluded.

9.Check tear secretion and tear break-up time to rule out dry eye.

10.The eye is examined for strabismus and movement disorders.

11.Check whether the iris texture is clear and whether there are any abnormalities.

12.Surgical contraindications such as glaucoma were excluded, patients with high intraocular pressure were screened, and postoperative medication was arranged.

13.Comprehensively and accurately understand the refractive status of the eye, and perform small pupils, dilated pupils and preoperative refraction respectively.

14.Check the degree of myopia, farsightedness, and astigmatism.

15.Checking the refractive power of the cornea is of great clinical significance for the selection of surgery and the precise postoperative effect.

16.Corneal diameter measurement provides a reference for the design of surgical protocols.

17.Learn about binocular vision fusion.

18.Learn about stereo vision capabilities.

19.The measurement of the main eye provides a reference for the design of the surgical plan.

20.Comprehensive analysis of corneal data has a unique advantage in screening early keratoconus.

21.Determine whether laser myopia surgery is available and the choice of surgical method.

22.Measure the eye axis to understand the myopia category.

23.The prescription of refraction is more accurate, accommodative myopia is excluded, and fundus diseases are more comprehensively excluded.

24.The fundus is examined to rule out fundus disease.

From 5000-12000, because myopia surgery is different.