Patient: Hello doctor, I had LASIK surgery 2.5 years ago and my vision is around 500 degrees in both eyes. Now I have many questions and I have seen many negative comments on the internet about myopia surgery, which has kept me emotionally low and even worried that my life will be ruined in the future. 1, my left eye vision loss, degree back, recently after an excessive use of the eye appeared dry, foreign body feeling, swelling and pain, although not very serious but continued so far a week did not subside. I read on the internet that many complications can easily occur after reoperation and that cone corneas may appear. Is it possible to correct myopia in my left eye by frame glasses? What is the case of astigmatism and myopia that cannot be corrected by glasses in many cases? 2. I once saw a report that a person who had myopia surgery developed glaucoma after watching 3D movies. 3.The Internet says that people who have undergone surgery must develop presbyopia at the age of 35-40, is this correct? Is this a normal form of presbyopia? Can it be corrected by glasses? 4.There is also a saying on the internet that after 10 years the eyes are prone to eye infections and eye diseases, and that cataracts cannot be operated on. Is it true? After surgery, is it more likely to suffer from eye diseases or is it the same as the general population? 5. If I am not checked for cone-risk group due to improper pre-operative examination, how long will it take before something goes wrong and does two and a half years mean that my eyes are safer? I want to go to the hospital to do some tests to see if there is a lesion in the eye, what tests should I do? Dr. Liu please, there are many questions, but it is very important to me, some negative comments on the Internet have been a big impact on my psychology, I would like to know some more scientific explanation. Thank you so much. Doctor: Please go to the hospital for medical optometry and corneal topography, the proportion of “cone cornea” after LASIK is not high, most of them are due to early signs not detected before surgery. The symptoms of post-operative cone corneal are increasing myopia, especially astigmatism, and deteriorating visual acuity. The symptoms you describe do not appear to be a “cone cornea”, but if the shape of the cornea remains regular after LASIK, it is possible to correct vision with ordinary glasses. In the long run, the chance of other eye diseases after LASIK is no higher than in eyes that have not undergone the surgery. However, it is important to note that the eye should not suffer from severe trauma, and before having cataract surgery in the future, you should tell your doctor that you have had LASIK surgery to calculate the IOL more accurately. In addition, “presbyopia” is an age-related physiological phenomenon. If your eyes are not overcorrected for myopia, i.e., there is no farsightedness, then “presbyopia” will appear at the same age as normal people.