Yes, it is possible to have LASIK for farsightedness after having LASIK for nearsightedness. However, it is important to note that if you have surgery in both eyes for nearsightedness, your distance vision will not be clear because you are correcting your vision for a closer focal point. As we age, our ability to focus up close decreases which is part of the natural aging process. This processes is called presbyopia. Most people will notice starting at around age 40-45 that they cannot see as clearly up close and need a little bit of help to be able to focus when doing any near work. One option that you may opt for is to have one eye corrected for near and the other for distance. This is what we call monovision. Typically the dominant eye will be corrected so that point of focus is in the distance, allowing you to see clearly far away. The non-dominant eye is corrected so that the point of focus is up close, allowing you to see clearly when doing near work. This may be a viable option if you want to be able to see clearly at all distances without wearing glasses. However, it is important to note that not everyone will be able to adapt to monovision. You should speak to your eye care provider to see if they can prescribe you contact lenses or glasses as a trial run to see if you can adapt to mono vision.
Dr. Jay Bansal