1. Above all else protect the remaining eye from injury, eye disease and vision damage from an unhealthy lifestyle. That means wearing eye protection, avoiding sports and activities with eye injury and eating good diet, not smoking cannabis or nicotine, exercise, weight control and drinking more more than two alcoholic beverages per day (preferrably red wine if you choose to drink) 2. See an comprehensive eye MD annually and a retina Eye MD ophthalmologist yearly, ideally 6 months apart. Your good eye may have as high as 5-15% chance of getting RD Avoiding jarring blows to head and eye and avoid whip head around amusement rides.
2. You would have to see a second retina Eye MD ophthalmologist for a second opinion about what might be done to help the operated eye and confirm good eye has no problems.