Yes, you can open your eyes underwater after LASIK. It is important to follow your doctor’s instructions carefully after surgery, but in general, you should be able to resume your regular activities, including swimming, within a few days.
Can opening your eyes underwater damage them?
While it is possible to open your eyes underwater and not damage them, it is not recommended. The water can cause your eyes to dry out and can potentially damage your vision.
It is possible to dive after LASIK, but you should consult with your doctor to make sure that it is safe for you to do so.
Conclusion
Some people report being able to open their eyes underwater shortly after surgery, but it is not recommended. Most surgeons will tell you to avoid getting water in your eyes for at least two weeks after surgery.