Hi Wxuan97,
Myopia in excess of -1000 degrees is certainly fairly extreme. In every patient considering refractive surgery, you should have a detailed eye assessment and detailed discussion with your ophthalmologist to determine the most suitable options available to you.
Many patients find that if there is sufficient anterior chamber depth in their eye, an implantable collamer lens to correct their vision is an excellent, and safe option for them.
Other patients would consider pursuing the idea of laser refractive surgery and understand that they need to ensure sufficient residual corneal tissue remains, that post-laser inflammation / haze is controlled, and that requiring laser enhancement is a possibility if they pursue this option.
Again - its best to discuss your options in detail with your ophthalmologist after your complete eye assessment. Best of luck with your surgery, and I'm sure you'll be delighted with either option you choose to go with!
ESG