Why does vision sometimes get worse again after laser eye surgery?

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Why does vision sometimes get worse again after laser eye surgery?
There are several possible reasons, including progression of myopia, dry eye, residual astigmatism, corneal changes, and age-related changes in the natural lens. A vision test and detailed corneal examination can help identify the cause. A decrease in vision does not necessarily mean that another operation is needed.

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45	What eye conditions and procedures do you treat? We provide consultations and treatment for vision correction procedures such as LASIK, LASEK, and implantable lenses; enhancement surgery after previous vision correction; cataract surgery and IOL exc...
44	What should I bring to my first appointment? Please let us know about any previous eye procedures and their dates, your medical records, oral medications and eye drops, contact lens use, and medical conditions such as diabetes or high blood pres...
43	Can I drive myself home after my eye examination? We recommend using public transportation rather than driving to your comprehensive eye examination, whether or not pupil dilation is planned. Dilating drops can cause glare and blurred near vision for...
42	Can I find out the cost of tests or surgery in advance? Costs vary depending on the tests needed, your diagnosis, the type of lens or surgery, and whether Korean National Health Insurance applies. After your examination and treatment plan are established, ...
41	Can I have LASIK or LASEK if I have dry eyes? In some cases, yes, but it is important to assess and manage dry eye first. An unstable tear film can affect preoperative measurements and may worsen dryness after surgery. If necessary, we treat the ...
40	My vision is still blurry after cataract surgery. Do I need another operation? Not necessarily. Blurry vision after cataract surgery can have several causes, including residual nearsightedness or astigmatism, dry eye, posterior capsule opacification, IOL position, or retinal dis...
39	Is a retinal tear the same as retinal detachment? No. A retinal tear or hole is a break in the retina, while retinal detachment occurs when the retina separates from the tissue beneath it. Some retinal tears can be treated with laser before detachmen...
38	When is it safe to fly after retinal detachment surgery? The timing depends on the type of bubble placed inside your eye. Flying while any air or gas remains can cause the bubble to expand as cabin pressure decreases, leading to a dangerous rise in eye pres...
37	How do I get to the clinic from Gangnam Station? First Samsung Eye Clinic is located on the 5th floor of Hongwoo Building 2, 22 Seocho-daero 78-gil, Seocho-gu, Seoul, near Gangnam Station. The clinic is approximately a two-minute walk from Exit 6. P...
36	Can I get a second opinion after seeing another eye doctor? Yes. We can provide a second opinion about a diagnosis or the results of surgery performed elsewhere. Bringing previous test results, surgical records, or prescriptions can help us understand your eye...
35	Will surgery guarantee the vision I want? No particular level of vision or surgical outcome can be guaranteed. Results depend on your eye condition, vision before surgery, other eye diseases, and healing response. Before proceeding, it is imp...
34	Can I have an examination now and decide about surgery later? Of course. You can have your eyes examined, review your options, and take time to decide whether to proceed with surgery. In non-urgent cases, monitoring or nonsurgical treatment may be appropriate. U...