Could my severe retinal detachment be repaired after so many years?

Unlikely: It is difficult and sometimes impossible to repair retina after it has been detached for more than a few months. The reason is that it becomes rigid and covered with scar tissue. Additionally, detached retina rapidly becomes oxygen deprived so after a few years, the retina cannot see, even if reattached. There are situations however where surgery is done to prevent worsening of a detachment.

Likely not. : Unfortunately, some patients, particularly those with chronic retinal detachment, do not recover any vision, even if it can be fixed. The more severe the detachment, and the longer it has been present, the less vision may be expected to return. For this reason, it is very important to see a retina specialist at the first sign of trouble.