Do you have any friends who have had myopia surgery in Changzhou?
What tests did you do before the surgery?
I have been myopic for more than ten years, my left eye is 450 degrees, my right eye is 425 degrees, I have always worn glasses, and now I have finally made up my mind to take off my glasses!
A few days ago, I went to Zeming Ophthalmology for a comprehensive preoperative examination, and friends who know about myopia surgery know that a thorough and systematic preoperative examination is very important.
For this reason, I checked a lot of relevant information on preoperative examinations, and today I will share with you these 4 examination indicators that need to be focused on. Definitely not reliable!
Corneal thickness
Corneal thickness is one of the key factors in deciding whether myopia surgery is suitable or not. Normal corneal thickness ranges from 500 to 550 m, with thin corneas ranging from 450 to 460 m and thicker ones to more than 600 m. Corneal thickness not only affects the choice of surgical method, but also an important guarantee of surgical safety.
Myopia + astigmatism
Myopia laser surgery requires cutting the thickness of the cornea, which is calculated based on the degree of myopia + astigmatism. For example, if the corneal thickness is 550 m, myopia + astigmatism is 600 degrees, the cornea consumed is 6*20=120 m, and the remaining corneal thickness is 550-120=430 m. Therefore, patients need to choose the most suitable surgical method according to their own corneal thickness combined with the corneal thickness to be cut.
The size of the pupil value
The size of the dark pupil value directly affects the visual effect after surgery. In a dark environment, the dilated pupil diameter is called a dark pupil, and the general dark pupil value is 5mm-7mm. If the preoperative dark pupil value is greater than 7mm, the risk of glare after surgery is greater.
Tear secretion test
The amount of tears produced is an important indicator of the health of the eye. The observation time of tear secretion test was 5 min, and the normal range value was 10-15 mm for 5 min. If the amount of tear secretion is less than 5mm 5min before surgery, it is dry eye, and it is necessary to undergo ** before considering myopia surgery.
Fortunately, my examination indicators are suitable for myopia surgery, and I have made an appointment for next week's ReLEx surgery, hoping that the surgery will go smoothly and I can take off my glasses successfully.